A vacuum tube equipped with an electron emitting CATHODE and a fluorescent screen which emits visible light when excited by the cathode ray. Cathode ray tubes are used as imaging devises for TELEVISIONS; COMPUTER TERMINALS; TEXT TELECOMMUNICATION DEVICES; oscilloscopes; and other DATA DISPLAY devices.
The visual display of data in a man-machine system. An example is when data is called from the computer and transmitted to a CATHODE RAY TUBE DISPLAY or LIQUID CRYSTAL display.
Input/output devices designed to receive data in an environment associated with the job to be performed, and capable of transmitting entries to, and obtaining output from, the system of which it is a part. (Computer Dictionary, 4th ed.)
Materials in intermediate state between solid and liquid.
Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum.
Electric power supply devices which convert biological energy, such as chemical energy of metabolism or mechanical energy of periodic movements, into electrical energy.
The physical effects involving the presence of electric charges at rest and in motion.
Genetic mechanisms that allow GENES to be expressed at a similar level irrespective of their GENE DOSAGE. This term is usually used in discussing genes that lie on the SEX CHROMOSOMES. Because the sex chromosomes are only partially homologous, there is a different copy number, i.e., dosage, of these genes in males vs. females. In DROSOPHILA, dosage compensation is accomplished by hypertranscription of genes located on the X CHROMOSOME. In mammals, dosage compensation of X chromosome genes is accomplished by random X CHROMOSOME INACTIVATION of one of the two X chromosomes in the female.
Exclusive legal rights or privileges applied to inventions, plants, etc.
Areas of attractive or repulsive force surrounding MAGNETS.
The visually perceived property of objects created by absorption or reflection of specific wavelengths of light.
Fields representing the joint interplay of electric and magnetic forces.
The study of MAGNETIC PHENOMENA.
Mental processing of chromatic signals (COLOR VISION) from the eye by the VISUAL CORTEX where they are converted into symbolic representations. Color perception involves numerous neurons, and is influenced not only by the distribution of wavelengths from the viewed object, but also by its background color and brightness contrast at its boundary.
Artificial implanted lenses.
The outer shorter of the two bones of the FOREARM, lying parallel to the ULNA and partially revolving around it.
Pieces of glass or other transparent materials used for magnification or increased visual acuity.
A technique for analysis of the chemical composition of molecules. A substance is bombarded with monochromatic ELECTRONS. Some of the electrons passing through the specimen will lose energy when they ionize inner shell electrons of the atoms in the specimen. The energy loss is element dependent. Analysis of the energy loss spectrum reveals the elemental composition of a specimen. ENERGY-FILTERED TRANSMISSION ELECTRON MICROSCOPY is a type of electron energy loss spectroscopy carried out in electron microscopes specially outfitted to analyze the spectrum of electron energy loss.
Screens which absorb the energy in the x-ray beam that has penetrated the patient and convert this energy into a light pattern which has as nearly as possible the same information as the original x-ray beam. The more light a screen produces for a given input of x-radiation, the less x-ray exposure and thus shorter exposure time are needed to expose the film. In most film-screen systems, the film is sandwiched between two screens in a cassette so that the emulsion on each side is exposed to the light from its contiguous screen.
An analytical transmission electron microscopy method using an electron microscope fitted with an energy filtering lens. The method is based on the principle that some of the ELECTRONS passing through the specimen will lose energy when they ionize inner shell electrons of the atoms in the specimen. The amount of energy loss is dependent upon the element. Analysis of the energy loss spectrum (ELECTRON ENERGY-LOSS SPECTROSCOPY) reveals the elemental composition of a specimen. It is used analytically and quantitatively to determine which, how much of, and where specific ELEMENTS are in a sample. For example, it is used for elemental mapping of PHOSPHORUS to trace the strands of NUCLEIC ACIDS in nucleoprotein complexes.
Computer-based representation of physical systems and phenomena such as chemical processes.
Techniques using energy such as radio frequency, infrared light, laser light, visible light, or acoustic energy to transfer information without the use of wires, over both short and long distances.
A publication issued at stated, more or less regular, intervals.
Small-arms weapons, including handguns, pistols, revolvers, rifles, shotguns, etc.
Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.
A system containing any combination of computers, computer terminals, printers, audio or visual display devices, or telephones interconnected by telecommunications equipment or cables: used to transmit or receive information. (Random House Unabridged Dictionary, 2d ed)
An optical source that emits photons in a coherent beam. Light Amplification by Stimulated Emission of Radiation (LASER) is brought about using devices that transform light of varying frequencies into a single intense, nearly nondivergent beam of monochromatic radiation. Lasers operate in the infrared, visible, ultraviolet, or X-ray regions of the spectrum.
Argon. A noble gas with the atomic symbol Ar, atomic number 18, and atomic weight 39.948. It is used in fluorescent tubes and wherever an inert atmosphere is desired and nitrogen cannot be used.
Instruments used to observe distant objects.
Induction and quantitative measurement of chromosomal damage leading to the formation of micronuclei (MICRONUCLEI, CHROMOSOME-DEFECTIVE) in cells which have been exposed to genotoxic agents or IONIZING RADIATION.
Defective nuclei produced during the TELOPHASE of MITOSIS or MEIOSIS by lagging CHROMOSOMES or chromosome fragments derived from spontaneous or experimentally induced chromosomal structural changes.
Directions or principles presenting current or future rules of policy for assisting health care practitioners in patient care decisions regarding diagnosis, therapy, or related clinical circumstances. The guidelines may be developed by government agencies at any level, institutions, professional societies, governing boards, or by the convening of expert panels. The guidelines form a basis for the evaluation of all aspects of health care and delivery.
The guidelines and policy statements set forth by the editor(s) or editorial board of a publication.
Copies of a work or document distributed to the public by sale, rental, lease, or lending. (From ALA Glossary of Library and Information Science, 1983, p181)
A contagious disease caused by canine adenovirus (ADENOVIRUSES, CANINE) infecting the LIVER, the EYE, the KIDNEY, and other organs in dogs, other canids, and bears. Symptoms include FEVER; EDEMA; VOMITING; and DIARRHEA.
Persons living in the United States having origins in any of the black groups of Africa.
"The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.
Therapy using oral or topical photosensitizing agents with subsequent exposure to light.
That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range.
Drugs that are pharmacologically inactive but when exposed to ultraviolet radiation or sunlight are converted to their active metabolite to produce a beneficial reaction affecting the diseased tissue. These compounds can be administered topically or systemically and have been used therapeutically to treat psoriasis and various types of neoplasms.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.
Instruments for measuring arterial blood pressure consisting of an inflatable cuff, inflating bulb, and a gauge showing the blood pressure. (Stedman, 26th ed)
A silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.
Organic compounds which contain mercury as an integral part of the molecule.
Inorganic compounds that contain mercury as an integral part of the molecule.
Organic mercury compounds in which the mercury is attached to a phenyl group. Often used as fungicides and seed treatment agents.
Techniques for measuring blood pressure.
An organic mercurial used as a sulfhydryl reagent.
Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.
A growth from a pollen grain down into the flower style which allows two sperm to pass, one to the ovum within the ovule, and the other to the central cell of the ovule to produce endosperm of SEEDS.
Congenital malformations of the central nervous system and adjacent structures related to defective neural tube closure during the first trimester of pregnancy generally occurring between days 18-29 of gestation. Ectodermal and mesodermal malformations (mainly involving the skull and vertebrae) may occur as a result of defects of neural tube closure. (From Joynt, Clinical Neurology, 1992, Ch55, pp31-41)
A tube of ectodermal tissue in an embryo that will give rise to the CENTRAL NERVOUS SYSTEM, including the SPINAL CORD and the BRAIN. Lumen within the neural tube is called neural canal which gives rise to the central canal of the spinal cord and the ventricles of the brain. For malformation of the neural tube, see NEURAL TUBE DEFECTS.
Stable elementary particles having the smallest known negative charge, present in all elements; also called negatrons. Positively charged electrons are called positrons. The numbers, energies and arrangement of electrons around atomic nuclei determine the chemical identities of elements. Beams of electrons are called CATHODE RAYS.

[Effect of ambient light variations on luminance ratio of CRT monitor and image contrast in ultrasonography]. (1/6)

Variation in the luminance ratio of a cathode ray tube(CRT)monitor and the ultrasonographic images at different levels of ambient light(0-150 lux)was investigated to obtain optimum ambient light in the ultrasonography suite. The maximum and minimum luminances of test patterns and ultrasonographic images were measured after three technicians independently optimized the brightness and contrast of the CRT monitor and ultrasonographic images at different levels of ambient light. Furthermore, the luminance ratio was calculated from the maximum luminance divided by the minimum luminance. When ambient light increased, it was difficult for the technicians to optimize the brightness and contrast settings of the CRT monitor to maintain a high luminance ratio at 0 lux. The luminance ratio decreased rapidly as ambient light increased up to 20 lux. However, the luminance ratio decreased gradually when ambient light was higher than 20 lux. It is necessary to take into consideration the ambient light to maintain a high luminance ratio of ultrasonographic images.  (+info)

Neural response dynamics of spiking and local field potential activity depend on CRT monitor refresh rate in the tree shrew primary visual cortex. (2/6)

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Detection of changes in luminance distributions. (3/6)

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Temporal properties of liquid crystal displays: implications for vision science experiments. (4/6)

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Assessment of age changes and repeatability for computer-based rod dark adaptation. (5/6)

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Evaluation of an organic light-emitting diode display for precise visual stimulation. (6/6)

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Nov. 29, 1966 o. E. HULL. 3,289,196 CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY Filed Deo. 7, 1962 9 sheets-sheet 1 k Kivu, Nov. 29, 1966 o. EA HULL CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY 9 Sheets-Sheet 2 Filed Dec. Nov. 29, 1966 o. E. HULL CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY 9 Sheets-Sheet 5 Filed Deo. 7, 1962 f f e .y L C, 5 Il 7 5 /MM 5 2 j f 6 Y f6 lita i114. .c A Nov. Z9, 1966 o. E. HULL 3,289,196 CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY Filed Dec. 7, 1962 9 sheets-sheet 4 Nov. 29, 1966 o. E. HULL CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY 9 Sheets-Sheet 5 Filed Dec. Nov. 29, 1966 o. E. HULL 3,289,196 CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY Filed Dec. 7, 1962 9 Sheets-Sheet 6 fw i m w www ww www. Nm uw. www mmm A www SNN Nov. 29, 1966 o. E. HULL 3,289,196 CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY Filed Dec. ...
1. An organic light-emitting diode produced from an organic light-emitting diode substrate in which a concave-convex structure is provided in at least a part of a surface, wherein the concave-convex structure is capable of obtaining an atomic force microscope image in which a plurality of dots are dispersed when observed by an atomic force microscope, wherein the organic light-emitting diode is produced by a method comprising: measuring a diameter of each of the plurality of dots present in a randomly selected region having an area of 25 μm2 on the atomic force microscope image; obtaining a frequency distribution from a number of dots having a diameter corresponding to each of sections obtained by partitioning a diameter range for each 20 nm; calculating a total area of dots, which are present in each of the sections from the frequency distribution; and creating a histogram in which the total area is shown in a Y-axis and the diameter of the dot is shown in an X-axis, the histogram has a ...
CARBONARI, Karina et al. Increased micronucleated cell frequency related to exposure to radiation emitted by computer cathode ray tube video display monitors . Genet. Mol. Biol. [online]. 2005, vol.28, n.3, pp.469-474. ISSN 1415-4757. http://dx.doi.org/10.1590/S1415-47572005000300024.. It is well recognized that electromagnetic fields can affect the biological functions of living organisms at both cellular and molecular level. The potential damaging effects of electromagnetic fields and very low frequency and extremely low frequency radiation emitted by computer cathode ray tube video display monitors (VDMs) has become a concern within the scientific community. We studied the effects of occupational exposure to VDMs in 10 males and 10 females occupationally exposed to VDMs and 20 unexposed control subjects matched for age and sex. Genetic damage was assessed by examining the frequency of micronuclei in exfoliated buccal cells and the frequency of other nuclear abnormalities such as binucleated ...
TY - JOUR. T1 - Organic light-emitting diodes with an electro-deposited copper(I) thiocyanate (CuSCN) hole-injection layer based on aqueous electrolyte. AU - Tsai, Chi Ting. AU - Gottam, Sandeep Reddy. AU - Kao, Po Ching. AU - Perng, Dung Ching. AU - Chu, Sheng Yuan. PY - 2019/10. Y1 - 2019/10. N2 - Copper(I) thiocyanate (CuSCN) has been drawing much attention in optoelectronics due to its exceptional optical and electrical properties, as well as its processing versatility. The first organic light-emitting diodes (OLEDs) integrated with electro-deposited CuSCN crystalline thin films based on aqueous electrolyte were fabricated. With precisely tuned deposition parameters, the CuSCN thin films with satisfactory surface roughness and sufficient grain density were realized. We found that the driving voltage (voltage at a current density of 100 mA/cm2) and turn-on voltage of OLEDs using CuSCN as the hole injection layer (HIL) can be reduced by 1.41 and 1.79 V, respectively, compared with devices ...
An improved lens system for a projection television is described. The lens system is designed to be used with a cathode ray tube having a face glass with an aspheric surface having phosphor elements mounted thereto. The aspheric surface of the face glass has its maximum radius at the optical axis and is of lesser radius outwardly thereof. From the screen, the lens system companies a first aspheric lens of relatively weak power, a second biconvex lens of relatively high positive power, a third aspheric lens of weak positive power and a fourth lens having a concave face on its screen sider and of relatively large negative power.
A flexible organic light emitting diode (FOLED) is a type of organic light-emitting diode (OLED) incorporating a flexible plastic substrate on which the electroluminescent organic semiconductor is deposited. This enables the device to be bent or rolled while still operating. Currently the focus of research in industrial and academic groups, flexible OLEDs form one method of fabricating a rollable display. An OLED emits light due to the electroluminescence of thin films of organic semiconductors approximately 100 nm thick. Regular OLEDs are usually fabricated on a glass substrate, but by replacing glass with a flexible plastic such as polyethylene terephthalate (PET) among others, OLEDs can be made both bendable and lightweight. Such materials may not be suitable for comparable devices based on inorganic semiconductors due to the need for lattice matching and the high temperature fabrication procedure involved. In contrast, flexible OLED devices can be fabricated by deposition of the organic ...
Page contains details about iridium-containing polymer organic light-emitting diode . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
Page contains details about organic light-emitting diode . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
Organic electroluminescent materials play an important role in improving the optoelectronic performance of organic light-emitting diodes (OLEDs). Aromatic imide/amide-based organic small-molecule emitters have caught increasing attention due to their unique properties, such as strong electron-withdrawing characteri
Non-doped architecture has achieved great success as a universal method for simplifying the structure of organic light-emitting diodes (OLEDs). Currently, great challenges remain in the quest to further enhance the efficiency and reduce the pronounced roll-off for ultrathin emitting layer (UEML) based device
Introduction The purpose of this book is to bring a broad spectrum of information related to cathode ray tube (CRT)-based displays into a single easy-to-understand narrative. It requires no working knowledge of a television or how one programs a video cassette recorder (VCR). The starting point of each chapter will be basic information that is followed by detailed explanations and insight into the design trade offs that influence the image observed. The sequence of topics follows that in a workshop prepared by the author, and the chapters may be read in any order. However, the information in each chapter does build upon the material in the preceding chapters. It should be noted that all references to a cathode ray tube in this book are to only the glass part giving off light in a display. They do not include the entire display or monitor with the associated electronics, a point of confusion at times even within the industry. All CRTs use glass as a starting point; formulas involved (glass melt) ...
Three scanners are disclosed; common to all is an argon ion laser. In the first two versions, light passes through a telescope, which is provided to expand and collimate the laser beam, through a servo-driven iris whose function is to adjust the length of the slit image to be formed by the optics. The beam enters a rotating cradle, passes through a cylindrical lens, and strikes a galvanometer-driven mirror. Rotating the galvanometer about its axis deflects the image of the laser beam on the main scanning mirror. A second lens images the galvanometer mirror onto the CRT panel. In the first version, the main scanning mirror is a flat reflector; in the second version, the scanning mirror is either a prism or a mirror set at 45 degrees to the incident laser beam. In both versions, a motor-driven optical rotator is between the galvanometer-driven mirror and the scanning mirror. Several important features include the servo-driven image rotator and the motor-driven iris. In the third version, the optical
The moving images that it receives from a nearby broadcasting station is projected in three dimensions by the cathode ray tube or CRT and it also has an audio decoder to reproduce the sounds from the transmitted radio signals through the audio speakers. It is mainly used for entertainment, information and education. It is also referred to as a television set, television transmission or television program.. Unlike the internet where it is still struggling to compete with TV even nearing the completion of its third decade since it was made for public use; TV took over print media and radio broadcasting overnight! The world quickly catch on and before we knew it, TV had become a global phenomenon. Today there are approximately 4.7 billion units of television throughout the world and they range from the old cathode ray tubes to the flat LCD and plasma screens and all the way up to the latest LED curved TVs. In fact, there are more TV sets than computers in the world today and it seems computers ...
An examination of the human heart is carried out by means of ultrasound waves emitted by piezo-electric crystals. The crystals are inserted in a holder adapted to be placed on the body of a patient; they are arranged in a row and have parallel axes of radiation. The crystals are cyclically excited at a high scanning frequency, and the echo signals reflected by the heart walls and received by the crystals are displayed on the screen of a cathode ray tube to obtain a cross-sectional picture of the heart. In a modification of the invention, the holder comprises two or more rows of crystals radiating at different angles; in this case the echo signals related to a common point of the heart wall are superposed on the screen of the cathode ray tube by means of a coordinate transformation.
To sequence DNA, DNA samples marked with flourscent infrared dye are applied at a plurality of locations for electrophoresing in a plurality of channels through a gel electrophoresis slab. The channels are scanned with a laser and a sensor, that include a microscope focused on the gel slab. The focal point and slab are adjusted with respect to each other so that the focal point of the microscope remains on the gel slab during a scan. The data from the scan is directly used to amplitude modulate density readings on a display, and the scan is displayed in a horizontal sweep of a cathode ray tube, whereby said cathode ray tube provides intensity displays of bands representing DNA. Different sizes of glass gel sandwiches may be mounted to the same console for different sequencing tasks.
Feb. 2, 1954 M G, WHlTE 2,668,286 MOVING OBJECT SELECTIVE DETECTION SYSTEM Filed 001:. 25, 1943 ELE; #Magg/c Patented Feb. 2, 1954 assise UNITED STATES ATENT OFFICE MOVING OBJECT SELECTIVE DETECTION SYSTEM 15 Claims. Ihis invention relates to radio echo detection systems and particularly to a method and apparatus for improving the indication in such systems. One system of radio-echo detection which has been successfully used comprises a transmitter and associated antenna system for radiating a beam oi electromagnetic radiation into space toward the horizon and rotating the beam about a substantially vertical axis, so as to scan the horizon in repeated cycles. The radiation is modulated, so as to form discrete pulses and is reflected back from objects within the field of scanning which intercept the radiation, causing the electron beam of a cathode ray tube to be intensied, so as to produce spots of light on the face of the tube. The electron beam oi the cathode ray tube is caused to sweep ...
Thermal ground data and thermal reference data acquired by an airborne scanner are recorded on magnetic tape along with timing signals synchronized with the scanning. At some later time, the signals are played back and processed to produce a color image on a line-scanned cathode ray tube and the image is recorded on a continuous color film strip. Ground data signals are processed by a particular analog-to-digital converter to provide signals according to the instantaneous level of the thermal ground data compared to discrete reference levels which in turn are calibrated according to the thermal reference data. The digital signals gate color guns in the cathode ray tube at fixed intensity levels so that the color image is composed of a predetermined number of colors.
Scientists from Tohoku University in Japan have created a new type of energy-efficient flat light source. The light source, which employs carbon nanotubes, has a very low power consumption of around 0.1 Watt for every hours operation.
Gadolinium is a chemical element. It has the chemical symbol Gd. It has the atomic number 64. It is part of a group of chemical elements in the periodic table named the Lanthanides. It is a rare earth element. It is silvery white, malleable and ductile. Its main uses are as chemical compounds in color televisions and nuclear magnetic resonance radio contrast agents. In color cathode ray tube televisions (the type first produced, not flat televisions) some of the pixels are dots gadolinium compounds. When the electrons from the cathode ray tube hit the pixels and transfer energy to the gadolinium compounds they give out light as energy. Nuclear magnetic resonance (NMR) imaging is used in medicine where it is named MRI (Magnetic resonance imaging). It is used to take picture of inside the body. How the pictures look is changed by the gadolinium compounds and how much water is around. It makes the images clearer because it makes the difference in the concentration of water in different parts of the ...
A method is disclosed for making multi-component phosphor structures whose emission color depends on the energy of the electrons used to excite them. The method comprises the mixing of two or more component phosphors, each component phosphor having particles with non-luminescent interior core regions and non-luminescent exterior surface regions separated by a luminescent region, the region dimensions and emission color of each component being distinct. These structures are formed by diffusing activating and/or coactivating impurities partially into the particles, or by growth of activated material on the outside of non-luminescent material, and by the subsequent diffusion of luminescence killing impurities partially into the luminescent region.
Local field potential (LFP) recordings from patients with deep brain stimulation electrodes in the basal ganglia have suggested that frequency-specific activities correlate with force or effort, but previous studies have not been able to disambiguate the two. Here, we dissociated effort from actual force generated by contrasting the force generation of different fingers while recording LFP activity from the subthalamic nucleus (STN) in patients with Parkinsons disease who had undergone functional surgery. Patients were studied while on their normal dopaminergic medication. We investigated the relationship between frequency-specific oscillatory activity in the STN and voluntary flexion of either the index or little finger at different effort levels. At each tested effort level (10%, 25%, and 40% of the maximal voluntary contraction force of each individual finger), the index finger generated larger force than the little finger. Movement-related suppression of beta-band power in the STN LFP was
TY - JOUR. T1 - Light-emitting diodes fabricated from biomolecular compounds. AU - Tajima, H.. AU - Shimatani, K.. AU - Komino, Takeshi. AU - Ikeda, S.. AU - Matsuda, M.. AU - Ando, Y.. AU - Akiyama, H.. PY - 2006/8/15. Y1 - 2006/8/15. N2 - We fabricated ITO/biomolecule/Al junctions using chrolophyll a, cytochrome c, myoglobin, hemin, Vitamin B12. All the junctions worked as organic light-emitting diode (OLED). The quantum efficiencies of the fabricated OLED were of the order of 1 × 10-7 around V = 10 V, and did not seriously depend on whether or not a compound exhibits photoluminescence. Based on the energy diagram of the ITO/cytochrome c/Al junction, we discuss the difference of the EL spectrum from the photoluminescence or absorption spectrum.. AB - We fabricated ITO/biomolecule/Al junctions using chrolophyll a, cytochrome c, myoglobin, hemin, Vitamin B12. All the junctions worked as organic light-emitting diode (OLED). The quantum efficiencies of the fabricated OLED were of the order of 1 ...
Abstract: Proponents for sustainable alternative lighting and display options advocate for organic light-emitting diodes (OLEDs), particularly polymer-based organic light-emitting diodes (P-OLEDs), because of their potential for low-cost fabrication, more versatile device formats and lower power consumption compared to traditional options. Here, an economic, energy and CO2 emissions assessment is carried out for four different laboratory-scale, blue-emitting P-OLED device architectures: bottom-emitting conventional; bottom-emitting inverted; top-emitting conventional; and top-emitting inverted. Additionally, comparisons with a standard, commercial-scale, blue inorganic light-emitting diode (LED) device architecture are made. The various P-OLED device architectures are investigated due to their potential to increase operational lifetime (inverted) and light out-coupling efficiency (top-emitting). The following metrics are used in this assessment: device cost per area; yearly operating cost; ...
0151] The hole transport layer comprises hole transport material. Examples of hole transport materials for the hole transport layer have been summarized for example, in Kirk-Othmer Encyclopedia of Chemical Technology, Fourth Edition, Vol. 18, p. 837-860, 1996, by Y. Wang. Both hole transporting small molecules and polymers can be used. Commonly used hole transporting molecules include, but are not limited to: 4,4,4-tris(N,N-diphenyl-amino)-triphenylamine (TDATA); 4,4,4-tris(N-3-methylphenyl-N-phenyl-amino)-triphenylamine (MTDATA); N,N-diphenyl-N,N-bis(3-methylphenyl)-[1,1-biphenyl]-4,4-diamine (TPD); 4,4-bis(carbazol-9-yl)biphenyl (CBP); 1,3-bis(carbazol-9-yl)benzene (mCP); 1,1-bis[(di-4-tolylamino)phenyl]cyclohexane (TAPC); N,N-bis(4-methylphenyl)-N,N-bis(4-ethylphenyl)-[1,1-(3,3-dimethyl)bip- henyl]-4,4-diamine (ETPD); tetrakis-(3-methylphenyl)-N,N,N,N-2,5-phenylenediamine (PDA); α-phenyl-4-N,N-diphenylaminostyrene (TPS); p-(diethylamino)benzaldehyde diphenylhydrazone (DEH); ...
Non-doping white organic light-emitting devices (WOLEDs) based on an ultrathin yellow-emitting layer of rubrene inserted between the blue-emitting layer 4,4-bis(2,2-diphenylvinyl)-1,1-biphenyl (DPVBi) and the electron transport layer tris-(8-hydroxyquinoline)aluminum (Alq3) fabricated by combinatorial sliding shutter technique are reported. Three of the the sixteen devices made had Commission Internationale de lEclairage (CIE) coordinates within the white region at 8 - 16 V, ranging from (0.31, 0.38) to (0.34, 0.42). All three devices had a 5-nm thickness of DPVBi layer and an ultrathin rubrene layer of thickness of 0.05-, 0.10-, and 0.15 nm, respectively. A maximum luminance of 12,900 cd/m2 at 17 V and an efficiency of 5.5 cd/A at 8.5 V were obtained in the devices with 0.05 nm rubrene layer. These devices can be fabricated rather easily due to their simple device structure and they are very appealing to low-cost general lighting applications ...
Alloys, Cathode, Cathode Ray, Cathode Ray Tubes, Electrodeposition, Electron, Electron Microscopy, Fluorescence, Microscopy, PH, Scanning Electron Microscopy, Solutions, X-ray
Several scientists, such as William Prout and Norman Lockyer, had suggested that atoms were built up from a more fundamental unit, but they envisioned this unit to be the size of the smallest atom, hydrogen. Thomson in 1897 was the first to suggest that one of the fundamental units was more than 1,000 times smaller than an atom, suggesting the subatomic particle now known as the electron. Thomson discovered this through his explorations on the properties of cathode rays. Thomson made his suggestion on 30 April 1897 following his discovery that cathode rays (at the time known as Lenard rays) could travel much further through air than expected for an atom-sized particle.[15] He estimated the mass of cathode rays by measuring the heat generated when the rays hit a thermal junction and comparing this with the magnetic deflection of the rays. His experiments suggested not only that cathode rays were over 1,000 times lighter than the hydrogen atom, but also that their mass was the same in whichever ...
A system for transferring data from a CRT (cathode ray tube) video display monitor on a personal computer to a portable information device such as a multifunction electronic wristwatch. The CRT video display has a video signal generator providing raster scanning of the screen and a program for formatting the binary coded data into blocks of serial data bits, with start bit and stop bit. The blocks of data are supplied to the video signal generator in synchronism with raster scanning of the screen so as to provide an integral number of one or more blocks of data for each vertical frame, and modulated to vary the brightness of the screen and provide light pulses corresponding to presence or absence of binary coded transmitter pulses. The portable information device is manipulated within line of sight of the CRT screen and has a photosensor to detect light pulses when the photosensor is directed toward the screen. Signals from the photosensor are amplified and filtered to remove ambient light source
This ARP describes methods for measuring the visual performance of direct view cathode ray tube displays used in aircraft flight decks and cockpits. Procedures may vary depending upon the type of display (for example, monochrome, color shadowmask, beam index, etc.), but all types are considered.. This ARP describes the methods to be used in measuring those performance characteristics important for color and luminance use in direct view airborne electronic display systems.. ...
The visual stimuli used to map response properties consisted of sine wave gratings at 80% contrast drifting across the central 60° of visual space (mean luminance, 27.5 cd/m2). The portions of areas 17 and 18 that were imaged correspond to the central 5-10° of visual space (Tusa et al., 1978, 1979). All stimulus sets included four randomly interleaved mean-luminance gray stimuli; the responses averaged over these four stimuli were used to produce a blank response image. Stimuli were generated by computer and displayed on a gamma corrected 21 inch cathode ray tube (CRT) monitor using the Psychophysics Toolbox extensions for Matlab (MathWorks, Natick, MA) (Brainard, 1997; Pelli, 1997). The contrast linearity of the stimulus system was confirmed by imaging the CRT using a 1M30 CCD camera (supplemental Fig. 1, available at www.jneurosci.org as supplemental material).. Stimulus gratings first appeared as stationary images for 6 s (the interstimulus interval) and then drifted across the screen for ...
In 1897, Thomson published the results of a series of experiments meant to confirm the particulate nature of cathode rays and to compare its charge and mass to that of electrically charged gas molecules, or ions. The results of Thomsons investigations pointed to a negatively charged particle that was some 1,000 times less massive than a hydrogen molecule, if, indeed, the charge of the particle was the same as that carried by a hydrogen ion. This had yet to be substantiated, however, and as only the ratio of the two variables was obtained, there was some doubt about the conclusions drawn regarding the particles mass. In the experiments, Thomson was able to show that cathode rays were deflected in the presence of an electrical field, a result that had shown a null effect in previous experiments by other investigators due to their inability to achieve a good enough vacuum. By deflecting a stream of cathode rays with a magnet, Thomson could measure the ratio of the electric charge to the mass of ...
A cathode ray tube (CRT) monitor uses about 74 watts to display an all white web page, but only uses 59 watts to display an all black page. Worldwide, about 25 percent of the monitors currently in use are CRT, which means that they waste energy displaying white backgrounds. Read the stats ...
There is an unexpected problem, though: Our visual acuity is so high that even at 5 m distance the spatial resolution of computer screens is insufficient to adequately assess acuity (Bach 1996). One could increase observer distance, but that would require huge screens under pathologic conditions. LCD displays currently are worse than cathode ray tubes, and the latter are limited by shadow masks electron optics, so-called high-resolution screen are just bigger, the pixel size is not smaller. But advanced computer graphics provides a solution, the so-called anti-aliasing. This term has been popularized in flyers for CD players and is increasingly used in computer graphics. Spatial resolution is improved with the help of intensity resolution. Optics of the human eye represent a low-pass filter for spatial frequencies, and --after passage through the optics-- an anti-aliased image leads to the same retinal image as an image with veridical higher resolution. The principle is depicted in the ...
In an airborne radar system, moving ground targets are identified on a cathode ray tube (CRT) display and their motion tracked to allow precise delivery of air-to-ground weapons. Target location errors, due to the effect of target motion upon the doppler frequency of the received ...
the preparation of drugs in anticipation of drug orders based on routine, regularly observed prescribing patterns. Pharmaceutical compounding must be in compliance with FFDCA Section 503A and any regulations promulgated by FDA concerning compounding, pertaining to this section.. Computer Programmable electronic device, capable of multifunctions including but not limited to storage, retrieval and processing of information.. Controlled Substance Those drug items regulated by Federal (CSA of 1970) and/or State Controlled (dangerous) Substances Act.. CRT Cathode Ray Tube used to impose visual information on a screen.. Delivery The transfer of a dispensed prescription to the ultimate user (patient) or his/her agent.. Dispensing To furnish or deliver a drug to an ultimate user by or pursuant to the lawful order of a practitioner; including the preparation, packaging, labeling or compounding necessary to prepare the drug for that delivery.. Downtime That period of time when a computer is ...
Looking for kinescoping? Find out information about kinescoping. picture tube television picture tube, a cathode ray tube used to reproduce television images. The kinescope is used for viewing black-and-white or color... Explanation of kinescoping
AbeBooks.com: Vision Science: Photons to Phenomenology: Quarto in black boards (black spine, white text); illus.; 810 pp., 26 cm. In English. || Association copy from the library of Dr. Donald A. Glaser, inventor of the bubble chamber and recipient of the Nobel Prize in Physics, 1961. Dr. Glasers name stamp is on the upper open corner of the ffep.; Search keyword DGLSR to see dozens of volumes from The Glaser Collection. Contents: An introduction to vision science -- Theoretical approaches to vision -- Color vision : a microcosm of vision science -- Processing image structure -- Perceiving surfaces oriented in depth -- Organizing objects and scenes -- Perceiving object properties and parts -- Representing shape and structure -- Perceiving function and category -- Perceiving motion and events -- Visual selection : eye movements and attention -- Visual memeory and imagery -- Visual awareness -- Appendices : Psychophysical methods -- Connectionist modeling -- Color technology. Very good(+) copy; previous
Original versions of thermal imagers displayed thermal images through the use of black and white cathode ray tubes (CRTs)! Permanent records were possible with
Are Computers Bad For Health? Love them or hate them, computers are essential in most things we do. They can provide hidden dangers, however. With the old type of screen with the cathode ray tube, the electrons would emit electromagnetism which is not good for health. They are very rare these days and the flat screens dont carry this risk. Excessive computer work can still damage your health. The blue light of a computer monitor and other digital devices, like televisions…. ...
In this day and age, technology most certainly has become an integral part of our life. Modern day technology has undoubtedly made our daily lives much more efficient while bringing us more convenience and flexibility along the way. The evolution of technology has also changed the way we socialize, entertain ourselves, and now quite possibly the way we behave. The existence of video games began approximately 65 years ago. What began as a simple Cathode Ray Tube Amusement Device has now transformed itself into modern day video game platforms. These platforms consist of using a personal computer, video game consoles, arcade games, and smartphones as a fundamental requirement to run the video game software. Video games along with modern day technology have now joined forces to create high definition video with high end graphics to deliver a realistic virtual gaming experience. The ultimate gaming experience however, comes with consequence and is now finding itself in the midst of a controversial ...
Pacific University students who are interested in a career in optometry and vision science may choose to complete a pre-optometry and vision science track along with their bachelors degree in preparation for optometry school, such as Pacifics College of Optometry.
Researchers are developing technologies that they hope will put entire computers and large-format screens onto wafer-thin glass, or even plastic that can be rolled up; most promising technology is based on Kodaks organic light-emitting diode, which is less bulky and consumes less power than liquid-crystal displays, technology at heart of most of todays flat screens; photo (M)
Organometallic complexes of iridium have gained importance because of their novelty, reactivity and applications in diverse fields. In this book, the authors present current research in the study of the occurrence, characteristics and applications of iridium. Topics include the synthetic methods of different classes of volatile organometallic and coordination compounds of iridium; homogeneous iridium catalysts in aqueous solution; applications of iridium catalysts in green chemistry; iridium-carbonyl complexes of nitrogen-oxygen and phosphorous-oxygen donor ligands; iridium-catalyzed allylic substitutions; a novel amperometric transducer electrode with iridium-niobium binary alloys; and highly efficient electrophosphorescent organic light-emitting diodes based on iridium (III) complexes containing carbazole units. (Imprint: Nova). ...
Frequency up-conversion is demonstrated in a polyfluorene-based conjugated polymer. Up-converted emission is observed upon excitation to the red of the 0-0 luminescence band. The emission intensity depends strongly on temperature and provides an accurate probe of the operating temperature of organic light-emitting diodes. Temperature rises of up to 30 K are observed at standard operating current densities of 225 mA/cm2. Due to the low thermal conductivity and heat capacity of the polymer film, the temperature of the film is found to rise slowly on a time-scale of seconds. Upon termination of the current, the temperature decreases again on a time-scale of minutes. © 2002 American Institute of Physics ...
Pyrene-cored [5]helicenes were prepared by a facile, efficient Wittig reaction and an intramolecular photocyclization reaction utilising 2,7-di-tert-butylpyrene-4-carbaldehyde and naphthalene/pyrene-based phosphorus ylides. Optical properties based on UV À vis absorption and fluorescence spectra were investigated. X-ray crystallography revealed that the pyrene-based [5]helicenes exhibited strong face-to-face p À p interactions and edge-to-face p À p interactions. HOMO and LUMO energies and molecular orbitals were also studied by density functional theory (DFT) calculations. This study has revealed that the torsion angle of the helical structure plays a role in determining the p À p interactions and the frontier molecular orbital energy levels. Thus, pyrene-based helicenes need to be considered when one designs new highly efficient organic light-emitting diodes and organic semiconductor materials.
Emil J. W. List1,2,* and Norbert Koch3,4,5 1NanoTecCenter Weiz Forschungsgesellschaft m.b.H., Franz-Pichler-Straße 32, A-8160 Weiz, Austria 2Institut für Festkörperphysik, Technische Universität Graz, Petersgasse 16, A-8010 Graz, Austria 3Helmholtz Zentrum Berlin für Materialien und Energie GmbH Elektronenspeicherring BESSY II Albert-Einstein Str. 15, 12489 Berlin, Germany 4Institut für Physik, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 6, D-12489 Berlin, Germany [email protected] *Corresponding author: [email protected] ...
Consider that not so long ago, considerable concern was expressed among optometric educators that our focus on optics was diminishing with the increases in biologic sciences training related to eye disease management responsibilities. Many challenged the NBEO to reflect soberly on student performance in optics on the National Board examinations and some practitioners warned that there was a diminished interest in optics. However, it is now clear that the new optics has more, not less, relevance to the practice of optometry than it did just 10 years ago. As a result of new developments in measuring and correcting the aberrations of individual human eyes, two excellent and prophetic editorials in Optometry and Vision Science heralded these changes in optometric and ophthalmologic practice.1,2 Now the modern new visual optics, the ability to characterize, measure, correct, and even begin to relate the eyes optical aberrations to vision expectations in simple ways beyond the spherical and ...
Deadline for submission: October 1, 2011. In recent years, Optometry and Vision Science (OVS) has published a number of advances in research revealing remarkable non-invasive imaging within the eye; the imaging is accompanied by startling precision and unprecedented resolution. The application of these advances in ocular imaging has revealed important details of the anatomy, physiology, and clinical anomalies of most of the tissues in the living human eye.. OVS plans a Feature Issue entirely devoted to those advances, highlighting those technological achievements and their applications in research and patient care. The Feature also aims to identify the most pressing research questions and critical clinical issues that might be answered with further specific technology advances in ocular imaging.. Now OVS invites Original Articles, Invited Reviews, Case and Clinical Reports, and Technical Reports that highlight these technologies, in the context of the research and clinical advances that have ...
Global Optometry and Vision Science Conference is going to be held from May 14-15 in Singapore. Global optometry 2017 discusses on the
Neil R. A. Parry,1,* Athanasios Panorgias,2,4 Declan J. McKeefry,3 and Ian J. Murray2 1University of Manchester Health Science Research Centre and Vision Science Centre, Manchester Royal Eye Hospital, Manchester M13 9WH, UK 2Faculty of Life Sciences, Carys Bannister Building, The University of Manchester, Manchester M13 9PT, UK 3Bradford School of Optometry & Vision Sciences, University of Bradford, Bradford BD7 1DP, UK 4Current address: Department of Ophthalmology and Vision Science, University of California, Davis, Sacramento, California 95817, USA *Corresponding author: [email protected] ...
A tubular cathode was prepared by subsequently dipcoating the gas diffusion layer, Pt/C catalyst layer and Nafion membrane on the outside of the tubular Ti mesh. The single direct methanol fuel cell composed of the above electrodes was discussed under normal pressure, and the factors that affected the cell performance were discussed. The results also show that the diffusion layer and catalyst layer prepared by dip coating have mesoporous microstructure which is beneficial to mass transport. With catalyst loading increasing, the cell performance improves. When the Pt loading on cathode is 4.3 mg/cm2, the power density of DMFC reaches 12.3 mW/cm2 at room temperature by using air as the cathode feed. With the oxygen as the cathode feed, the power density of DMFC can reach 40.0 mW/cm2 at 60°C. This indicates that the temperature and oxidant type are as important as the cathode catalyst loading. The stability test of the cell after working for 100 h shows that the tubular cathode has a perfect ...
This is thermoluminescence. Diamond, marble, and fluorite are examples. Only certain varieties of fluorite show the phenomenon well. A crystal of one of these varieties heated in the bunsen flame on an iron spoon will give off a white light long before any trace of redness appears in the iron. Other crystals may luminesce in hot water. In all, this luminescence is dependent on a previous illumination or radiation of the crystal. If kept in the dark for a long time no trace of light appears when fluorite is placed at a temperature of 100°, but after a short exposure to the light of an incandescent bulb, although no light can be observed in the fluorite at room temperature, quite a bright glow appears at 100°. Calcium, barium, strontium, magnesium and other sulphates containing traces of manganese sulphate, show a similar phenomenon after exposure to cathode rays (Wiedemann and Schmidt, 1895 b). They emit light during bombardment, but this soon ceases when the rays are cut off. If the sulphates ...
The https://www.levitradosageus24.com/ generic brand levitra does it work principles of career guidance and planning are the same for everyone..... ...
Meet leading Scientists, Professors, Researchers, Partial Neuro Opthalmology Doctors, Scientists, Directors of Neuro Opthalmology companies, Neuro Opthalmology Researchers from London UK
This is the collection for the University of Waterloos School of Optometry and Vision Science .. Research outputs are organized by type (eg. Master Thesis, Article, Conference Paper).. Waterloo faculty, students, and staff can contact us or visit the UWSpace guide to learn more about depositing their research.. ...
Profile: Dr Maria Markoulli: Ive been singing in a choir since 2012. At that time, Id just finished my PhD and really craved a musical group environment. Attending my first rehearsal was a bit nerve wracking. Part of me was worried that I would embarrass myself and never come back. But on the contrary, choir turned out to be an amazing experience. I was struck by how inspiring it was to watch a group of people come together and create such beautiful music. They sang so effortlessly and yes, harmoniously. ...
An cathode is the terminal from which electrons enter a system. In a device which consumes power the cathode is negative, and in a device which provides power the cathode is positive. In electrolysis, the cathode is the negatively charged electrode, connected to the negative terminal of an electric supply. It attracts positive ions, which then gain electrons at the cathode.. ...
Single Element Atomax hollow cathode lamp (HCL) for the detection of elemental Mercury (Hg).. PerkinElmer Atomax 1.5 hollow cathode lamps are crafted to the same high standards that have made our 2 Lumina™ hollow cathode lamps the best in the industry. Drawing on more than 40 years of HCL design and manufacturing expertise, Atomax lamps now offer laboratories around the world a dependable, top-quality lighting source, regardless of the brand of AA instruments used.. All 1.5 Atomax hollow cathode lamps are thoroughly tested to ensure maximum light output and spectral purity. Comparative results show that Atomax lamps provide equal or better performance than other AA lamps in the market. Precision engineered for high sensitivity, stable light output, low noise, and long life, you can rely on Atomax lamps for the accurate results you need.. ...
Single Element Atomax hollow cathode lamp (HCL) for the detection of elemental Tellurium (Te).. PerkinElmer Atomax 1.5 hollow cathode lamps are crafted to the same high standards that have made our 2 Lumina™ hollow cathode lamps the best in the industry. Drawing on more than 40 years of HCL design and manufacturing expertise, Atomax lamps now offer laboratories around the world a dependable, top-quality lighting source, regardless of the brand of AA instruments used.. All 1.5 Atomax hollow cathode lamps are thoroughly tested to ensure maximum light output and spectral purity. Comparative results show that Atomax lamps provide equal or better performance than other AA lamps in the market. Precision engineered for high sensitivity, stable light output, low noise, and long life, you can rely on Atomax lamps for the accurate results you need.. ...
The use of alternate cathode materials with improved performance and without any chemical reaction with adjoining electrolyte is required for a reduction in operating temperature of SOFC from 1273 K to about 1073 K (ITSOFC). Cobalt containing perovskite oxides such as LaCoO₃ tend to exhibit a higher ionic conductivity due to a greater concentration of oxygen vacancies than other perovskite oxides. The mixed ionic and electronic conducting cathode of the La₁₋xSrxCoO₃₋δ systems has shown the lowest cathodic overpotential for an SOFC air electrode. In this research work, fine powders of La₀․₇₀Sr₀․₃₀CoO₃₋δ (LSC) cathode and Ce₀․₉₀Gd₀․₁₀O₂₋δ (GDC) and Ce₀․₈₀Sm₀․₂₀O₂₋δ (SDC) are synthesized by glycine nitrate combustion synthesis and systematically characterized by XRD and particle characteristics. The electrical properties of LSC cathode and GDC and SDC electrolytes are also studied. But, the crucial requirement for ...
The invention is a method for operating a vertically disposed, electrolytic cell of the type having: a hydraulically permeable, hollow, cylindrically shaped cathode; a hydraulically permeable, hollow, cylindrically shaped anode concentric with and surrounding said cathode to define an annular space therebetween; and a hollow, cylindrically shaped, ion permeable membrane interposed between, and concentric with, said cathode and said anode, said membrane separating and defining an anode compartment containing the anode and a cathode compartment containing the cathode; wherein said process comprises: (a.) flowing a catholyte from a lower portion of the cathode compartment, upward toward the upper portion of the cathode compartment, at least a portion of said flow passing adjacent to the cathode at a rate sufficient to sweep away at least a portion of any gas, formed during electrolytic operation of the cell; wherein at least a portion of said catholyte flow is through the annular space between the cathode
In order to reduce annoying reflection of ambient light, anti-glare film has been developed and applied to electronic displays, such as PCs and smartphones.. However, as a side-effect of applying anti-glare film, sparkle pattern becomes obvious as fine and irregular luminance distribution caused by the combination of uneven surface-structure of anti-glare film and display matrix structure.. In the past, the degree of sparkle was evaluated visually by skilled personnel based on professional experience, but individual differences affected the reproducibility of the results. Furthermore, there was another problem regarding how to quantify the measurement results.. This led to a series of developments in the market of quantitative sparkle measurement methods, i.e. measurement of display sparkle contrast.. However, even with the same sample, it has been difficult to get reliable and quantitatively comparable data from different parties. This is largely because the measurement parameters from each ...
Buy the book at Amazon. German, Korean, Japanese. Praise for THE VISION REVOLUTION: Made Best Books of 2009 story. -- New Scientist. Among Best of the Year books. ...this book is indispensable. -- Daniel Piza, Estadao, Aug, 2010. I think Vision Revolution is one of the best works of theoretical vision science since Gibson. --…
Webvision summarizes recent advances in knowledge and understanding of the visual system through dedicated chapters and evolving discussion to serve as a clearing house for all things related to retina and vision science.. Contact: [email protected] ...
Special Topics courses for 2017-2018. IMGS-789-01 Robot Vision (Fall 2181). Special Topics courses for 2016-2017. IMGS-789-01 Deep Learning for Vision (Fall 2161). IMGS-789-01 Modern Astronomical Imaging (Spring 2165). IMGS-789-02 Introduction to Radiative Transfer In Media (Spring 2165). IMGS-789-03 Optical Components, System Design and Performance (Spring 2165). Special Topics courses for 2015-2016:. IMGS-789-01 Introduction to Radiative Transfer in Media (Spring 2155). IMGS-789-02 Interactive Virtual Environments (Spring 2155). IMGS-789-03 Optical Component, System Design and Performance (Spring 2155). Special Topics courses for 2014-2015:. IMGS-789-01 Introduction to Radiative Transfer in Media (Fall 2141). IMGS-789-01 Advanced Topics in Radiative Transfer in Media (Spring 2145). IMGS-789-02 Eye-tracking Methods (Spring 2145). IMGS-789-03 Optical Component, System Design and Performance Evaluation (Spring 2145). IMGS-789 Vision Science Seminar. Suggested Graduate Courses Offered Outside of ...
The other day I mentioned that Ive been studying visual cognition, and in particular Ive been reading Vision Science: Photons To Phenomenology, by Stephen
Dr. McCormack, a professor of optometry in the Vision Science Department, has been a faculty member at the college since 1976. He teaches Binocular Vision and Ocular Motility and co-teaches Binocular and…
I just moved to Nanyang Technological Universitys beautiful campus in Singapore. Im getting to know my new colleagues here, and Im setting up my new lab. If youre interested in doing Vision Science in tropical Singapore, feel free to get in touch!. ...
Webvision summarizes recent advances in knowledge and understanding of the visual system through dedicated chapters and evolving discussion to serve as a clearing house for all things related to retina and vision science.. Contact: [email protected] ...
Department of Optometry & Vision Sciences, School of Health Sciences, University of Melbourne, Parkville, Victoria 3010, Australia ...
Every member of the team brings their own unique set of skills to the company. Our team is made up of engineers, international development, business, and optometry students. We have partnered with the University of Waterloo School of Optometry for the vision science element of our technology. Vivek Labhishetty works as a part-time employee and is a student at University of Waterloos School of Optometry completing his PhD. Ashu Syal, Daxal Desai, and Rachel Friesen are the co-founders of EyeCheck. Ashus role focuses on HR, finance, and all other areas. Daxals skill set is focused technical development and on-the-ground analysis. While Rachel is responsible for business development, social impact analysis, and overseeing EyeChecks three part-time business development and marketing employees. Lastly, there are three engineers from the University of Waterloo and one from Conestoga College that are working with Daxal on EyeChecks product development ...
Centre for Ocular Research & Education. School of Optometry & Vision Science. University of Waterloo. 200 University Avenue West. Waterloo, ON, Canada N2L 3G1. P: +1-519-888-4742. P: +1-519-888-4303. [email protected] ...
Zworykin, V. K. (October 1933). "Television with cathode ray tubes". Journal of the IEE (73): 437-451. ISBN 9780824077822. ... "Cathode Ray Tube". Patent No. 2,077,422. United States Patent Office. Retrieved 2010-01-10. Farnsworth, Philo T. (n.d.) [filed ... charged up by scanning the plate with an electron gun similar to one in a conventional television cathode ray display tube. ... His solution was a camera tube that accumulated and stored electrical charges ("photoelectrons") within the tube throughout ...
"June 2010". Cathode Ray Tube. Retrieved 28 June 2014. "My Wife's Lodger (1953) - Maurice Elvey - Synopsis, Characteristics, ...
The display cathode-ray tube. The negative and positive film processing. The telecine transmitting machine. In the remaining ... Since the cathode-ray tube in the domestic receiver has an effective gamma value of 2•5, the final screen picture will be at a ... it energises the phosphor in the cathode-ray tube of the domestic receiver. Apart from the widely employed factors such as log- ... telerecordings made by filming a cathode-ray tube display to produce a negative image, (4) telerecordings as in (3) but ...
CRT basically means cathode ray tube. The CRT use cathode-ray-tube technology to display images, so they are large, bulky and ... "Understanding of Cathode Ray Tube - CRT". ElProCus - Electronic Projects for Engineering Students. 2013-10-26. Retrieved 2018- ... To form the image on the screen, an electronic gun sealed inside a large glass tube fires electrons at phosphorous coated ... The most important component in the monitor is the picture tube. ...
Tedham, William F.; McGee, James D. "Improvements in or relating to cathode ray tubes and the like". Patent No. GB 406,353 ( ... CS1 maint: discouraged parameter (link) Tedham, William F.; McGee, James D. "Cathode Ray Tube". Patent No. 2,077,422 (filed in ... The super-Emitron was between ten and fifteen times more sensitive than the original Emitron and iconoscope tubes and, in some ... They solved this problem by developing and patenting in 1934 two new camera tubes dubbed super-Emitron and CPS Emitron. ...
"Flat tension mask type cathode ray tube". "Cathode ray tube with bracket for mounting a shadow mask frame". "Color cathode ray ... The shadow mask is one of the two technologies used in the manufacture of cathode-ray tube (CRT) televisions and computer ... U.S. Patent 2,692,532, "Cathode Ray Focusing Apparatus", Ernst O. Lawrence, University of California/Chromatic Television ... The Apple tube re-emerged in the 1970s and had some success. But it was RCA's success with the shadow mask that dampened most ...
"The Cathode Ray Tube and its Applications". Nature. 150 (3794): 74. July 1942. Bibcode:1942Natur.150S..74.. doi:10.1038/ ... The first electronic screen was the cathode ray tube (CRT), which was invented in 1897 and commercialized in 1922. CRT's were ...
"Yes, it's the Cathode Ray Tube Show". Nostalgia Central. Retrieved 29 December 2018. "Remembering Dame June Whitfield". ATV ...
The IBM 740 Cathode Ray Tube Output Recorder was also available, which is a 21-inch vector display with a very long phosphor ... "IBM Archives: 704 Cathode Ray Tube Output Recorder". 23 January 2003. Retrieved 10 December 2012. "IBM Archives: IBM 737 ... Like the 701, the 704 uses vacuum tube logic circuitry and 36-bit binary words. Changes from the 701 include the use of core ... GM-NAA I/O List of vacuum tube computers "704 Data Processing System". IBM Archives - Exhibits - IBM Mainframes - Mainframes ...
About 8% by weight of cathode ray tubes is strontium oxide, which has been the major use of strontium since 1970. Color ... Méar, F; Yot, P; Cambon, M; Ribes, M (2006). "The characterization of waste cathode-ray tube glass". Waste Management. 26 (12 ... color cathode ray tubes sold in the United States are required by law to use strontium in the faceplate to block X-ray emission ... these X-ray emitting TVs are no longer in production). Lead(II) oxide can be used in the neck and funnel, but causes ...
The set used the 15GP22 cathode ray tube. https://www.earlytelevision.org/westinghouse_color.html "Admiral C1617A Color TV". ...
Zworykin, V. K. (October 1933). "Television with cathode ray tubes". Journal of the IEE. Institution of Electrical Engineers ( ... the first practical cathode ray tube television camera. June 26 - American Totalisator unveils its first tote board, the ... November 1 - Dijen K. Ray-Chaudhuri, Bengali-born mathematician. November 4 - Sir Charles K. Kao (died 2018), Chinese ...
Physics FAQ The Cathode Ray Tube site Bell, Mary; Green, S. E. (1933), "On Radiometer Action and the Pressure of Radiation", ... The prefix "radio-" in the title originates from the combining form of Latin radius, a ray: here it refers to electromagnetic ... Crookes tube Marangoni effect Nichols radiometer Photophoresis Solar energy Solar wind Thermophoresis Worrall, J. (1982), "The ...
In July 1946, Kilburn and Williams collaboratively developed a storage device based on a cathode ray tube (CRT) called the ... Kilburn, Tom (1990). "From Cathode Ray Tube to Ferranti Mark I". Resurrection. The Computer Conservation Society. 1 (2). ISSN ... With Freddie Williams he worked on the Williams-Kilburn tube and the world's first electronic stored-program computer, the ... that replaced the vacuum tube diodes with solid state ones. This permitted an order of magnitude increase in the clock rate. To ...
Some of them are also associated with cathode ray tubes; liquid crystal displays (LCDs), that are not scanned at high speed, ...
Philo Taylor Farnsworth refined a version of his picture tube (cathode ray tube, or CRT) and called it an "Iatron". It could ... Cathode-ray tube indicators and appropriate controls were also added. Edwin McMillan was primarily responsible for building and ... Range, azimuth, and elevation were shown on a cathode-ray tube display. There was no provision, however, for feeding this ... A cathode-ray display, made from an oscilloscope, was used to show range information. In July 1940, the new system was ...
In a cathode-ray tube (CRT), such as that for an oscilloscope, a beam of electrons is accelerated by an electromagnet coil ... The technology is discussed in the article Cathode ray tube. An alternative expedient to the electromagnetic deflection of ... around the neck of the tube. The electrons' speed (and therefore energy, and therefore illuminating effect) is proportional to ...
The early meteorologists had to watch a cathode ray tube. In 1953 Donald Staggs, an electrical engineer working for the ... using a cavity magnetron or klystron tube connected by a waveguide to a parabolic antenna. The wavelengths of 1 - 10 cm are ...
"Cathode Ray Tube: BRITISH CULT CLASSICS: The Reptile / Blu-Ray Review". cathoderaytube.co.uk. Jeff Davies. "horror makeups - ... Franklyn Ray Barrett as Harry George Spalding Jennifer Daniel as Valerie Spalding Jacqueline Pearce as Anna Franklyn Michael ... It was directed by John Gilling, and starred Noel Willman, Jacqueline Pearce, Ray Barrett, Jennifer Daniel, and Michael Ripper ... Ray Barrett) inherits his late brother's cottage and arrives with his new bride, Valerie (Jennifer Daniel) . The inhabitants of ...
The deflection yoke has two sets of coils, perpendicular to each other and to the neck of the cathode ray tube. The coils are ... The cathode ray tube allowed the development of all-electronic television. Electromagnetic deflection yokes are also used in ... A deflection yoke is a kind of magnetic lens, used in cathode ray tubes to scan the electron beam both vertically and ... Compared with electrostatic deflection, magnetic deflection has fewer obstructions inside the tube and so allows for a larger- ...
The zero point would be displayed on the cathode ray tube. The participant would turn the knob in order to keep the indicator ... Early versions of compensatory tracking tasks included a display made of an cathode ray oscilloscope with a rack and pinion ...
The results appear on a cathode ray tube with circular sweep. The instrument penetrates haze and mist in daylight or darkness ...
... or pickup tube). These tubes are a type of cathode ray tube, not to be confused with that of CRT displays. With the arrival of ... In classic cathode ray tube (CRT) devices, the brightness of a given point over the fluorescent screen due to the impact of ... One common application of the RGB color model is the display of colors on a cathode ray tube (CRT), liquid-crystal display (LCD ... The camera and the cathode-ray tube (CRT) were both monochromatic. Color was provided by color wheels in the camera and the ...
... concept was central to the cathode ray television because of his proposed modification of the cathode ray tube that allowed its ... The cathode-ray tube was the system of electronic television that was subsequently developed in later years, as technology ... When Swinton gave his speech others had already been experimenting with the use of cathode ray tubes as a receiver, but the use ... This was to be done by using cathode ray tubes (CRTs) at both the transmitting and receiving ends. The photoelectric screen in ...
Metallic lead exists in the electrical circuit boards and lead oxide is a component of the cathode ray tubes (CRTs) and is used ... Facilities that store cathode ray tubes (CRT) are particularly contaminated. Soil and dust samples collected at these locations ... Minnesota legislation also outlaws the dumping of cathode ray tubes in landfills. A law in the state of Washington took effect ... Cadmium: Cadmium is another metal, which is found in rechargeable batteries and "phosphor" coatings in older cathode ray tubes ...
1897 J. J. Thomson discovers the electron using the cathode ray tube. 1898 Wilhelm Wien demonstrates that canal rays (streams ... 1885 Eugene Goldstein names the cathode ray, later discovered to be composed of electrons, and the canal ray, later discovered ... to be positive hydrogen ions that had been stripped of their electrons in a cathode ray tube. These would later be named ... 1912 William Henry Bragg and William Lawrence Bragg propose Bragg's law and establish the field of X-ray crystallography, an ...
Aircraft activity was monitored from an eleven-inch cathode ray tube screen. Using the goniometre consisting of switches and ...
Both worked on perfecting the cathode ray tube which Kilburn worked on. They eventually came up with the Williams tube, which ... In the 1930s, Bernard Lovell, an astronomer moved to Manchester to become a research fellow on the cosmic ray research team at ... "On this day - 1978: First 'test tube baby' born". BBC. Retrieved 2011-11-14. "The 2010 Nobel Prize in Physiology or Medicine - ...
Karl Ferdinand Braun invents the modern electronic cathode ray tube in 1897. The CRT became a commercial product in 1922. ... August 17: Ray Chapman from the Cleveland Indians is killed by Carl Mays' pitch (baseball) August 20: National Football League ...
The first video game was "Cathode-Ray Tube Amusement Device" in 1947. Followed by "OXO" by Alexander Douglas in 1952, which was ...
... image is generated by a computer and then projected onto the dome using a variety of technologies including cathode ray tube, ...
... is due to leaded glass in cathode ray tube monitors and televisions, which can contain up to 2 kg per screen.This study was ... X-ray fluorescence spectroscopy can confirm the presence of bromine (Br), but it does not indicate the BFR concentration or ... tubes, or other electric devices that provide functional illumination for indoor residential, indoor commercial, and outdoor ...
... while DMA is used for cathode ray tube screens with a light pen, analog-to-digital converters, digital-to-analog converters, ...
German physicist and inventor Manfred von Ardenne gave a public demonstration of a television system using a cathode ray tube ...
... tends to work on a completely different scale altogether thanks to the highly nonlinear response both of cathode ray tubes (for ...
He went on to describe a radar system that rotated the antenna and the cathode ray tube (CRT) display at the same rate. When ... The primary displays consisted of a number of large cathode ray tubes (CRTs) connected to the radar output, allowing ... The two prepared a memo stating that the death ray was highly improbable, but they should consider developing an aircraft ... Watson, Jr, Raymond (2009). Radar Origins Worldwide. Trafford Publishing. ISBN 9781426991561. Royal Air Force Signals, World ...
... (heart cath) is the insertion of a catheter into a chamber or vessel of the heart. This is done both ... Once access is obtained, plastic catheters (tiny hollow tubes) and flexible wires are used to navigate to and around the heart ... Ideal table positioning between the x-ray source and receiver, and radiation monitoring via thermoluminescent dosimetry, are ... These "cath labs" are often equipped with cabinets of catheters, stents, balloons, etc. of various sizes to increase efficiency ...
In high voltage equipment like cathode ray tube televisions, radio transmitters, X-ray machines, and particle accelerators, the ... Alternating current Atmospheric pressure chemical ionization Crookes tube Dielectric barrier discharge Kirlian photography List ... being struck by an ultraviolet photon or cosmic ray particle), to create a positive ion and a free electron. The electric field ...
The first commercial electronic television sets with cathode ray tubes are manufactured by Telefunken in Germany. Samuel C. ... Bernal and Dorothy Crowfoot first successfully apply the technique of X-ray crystallography to analysis of a biological ...
Heilmeier to perform research on a liquid crystal-based flat panel display to replace the cathode ray vacuum tube used in ...
Paul's cathode ray tube technology. The company, as so many in the printing industry, endured a complex post-war history, ...
... but which actually detailed a cathode ray tube (CRT) camera tube. By late 1930s, dissectors were replaced by more efficient ... Dieckmann, Max (May 1928). "Cathode Ray Television". Popular Radio. 1928 (May): 397 and 406. Webb, Richard C. (2005). Tele- ... An image dissector, also called a dissector tube, is a video camera tube in which photocathode emissions create an "electron ... In 1951, Hell claimed that he had made a tube but could not get it to function, since at the time there was an insufficient ...
... an oscilloscope-like cathode ray tube under program control, as well as a Teletype Model 33 ASR. Actually, the CRT is a ...
Magnetic objects can damage cathode ray tube displays if they get too close to the display face or housing. In airline ...
Zenneck improved the Braun cathode ray tube by adding a second deflection structure at right angles to the first, which allowed ...
There is another designation system for professional tubes such as transmitter ones. A number before a cathode-ray tube ... VHF tube (25-600 MHz) GS (Russian: ГС) - UHF tube (>600 MHz) GM (Russian: ГМ) - Modulator tube GI (Russian: ГИ) - Impulse tube ... List of vacuum tubes Mullard-Philips tube designation RMA tube designation RETMA tube designation Electronics portal Georgescu ... "Vacuum Tube Numbering Schemes, Bases & Bulbs". Explanation of tube designation systems (in English) Russian receiver tube ...
The text-only monochrome IBM 2260 cathode ray tube (CRT) video display terminal (Display Station) plus keyboard was a 1964 ...
Examples: PC board with solid state devices, electric motor, cathode ray tube, pressure vessel. Note: Usually requires ...
... vacuum tubes, cathode ray tubes, and in vacuum systems in chemistry and other scientific research. Most metals cannot seal to ... and conductors entering glass envelopes of electronic parts such as vacuum tubes (valves), X-ray and microwave tubes and some ...
Williams tubes were the first true random-access memory device. The Williams tube displays a grid of dots on a cathode ray tube ... Vacuum tubes that operated for extended intervals with no plate current would develop a high-resistivity layer on the cathodes ... A vacuum tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry. ... Because the failure of any one of the thousands of tubes in a computer could result in errors, tube reliability was of high ...
... additional lines without image content are added to the displayed frame of 576 lines to allow time for older cathode ray tube ...
... a kind of magnetic lens used in cathode ray tubes Electrostatic deflection, a technique for modifying the path of charged ...
The cathode-ray oscilloscope works by amplifying the voltage and using it to deflect an electron beam from a straight path, so ... vacuum tube) based electronics. The voltage increase from point x A {\textstyle x_{A}} to some point x B {\textstyle x_{B}} is ...
Often, the lamp is surrounded by a cylindrical jacket called a flow tube. This flow tube is usually made of a glass that will ... "Application of 10GeV electron driven x-ray laser in gamma-ray laser research" (PDF). Proceedings of Workshop on Scientific ... Low energies give rise to sputter, which can remove material from the cathode and redeposit it on the glass, creating a ... Proceedings of the 3rd International Colloquium on X-ray Lasers, X-Ray Lasers '92, Schliersee, Germany, May 18-22, 1992 ( ...
It's the Cathode-Ray Tube Show! (1957) The Bumblies (1954) Goonreel (1952) The Goon Show (1951-52) Rentadick (1972) Bachelor of ...
... who had used recently discovered cathode ray tubes to show that the rays were deflected towards the poles of a magnetic sphere ... p. 9. ISBN 978-0-309-06885-7. "Evaluation of the Cosmic Ray Exposure of Aircraft Crew" (PDF). Sources and Effects of Ionizing ...
... cathode ray tubes, and mercury-containing devices. Universal wastes are subject to somewhat less stringent regulatory ...
... except for the cathode ray tube (CRT) picture tube. The rapid rise of radio broadcasting during the early 1920s, which provided ... The Nuvistor tubes were a last major vacuum tube innovation, along with General Electric's Compactron, and were meant to ... RCA's strong patent position meant that the company effectively set the selling prices for vacuum tubes in the U.S., which were ... RCA inherited American Marconi's status as a major producer of vacuum tubes, which were branded Radiotron in the United States ...
The LG Philips Displays cathode ray tube factory at Carrville, Durham was the second largest employer in the north east after ...
Besides his work in television, DuMont is best known for his work in improving the cathode ray tube, and for his contributions ...
Yes, Its the Cathode-Ray Tube Show! was a British television comedy programme which aired on ITV during 1957. It was produced ... Yes, Its the Cathode-Ray Tube Show! on IMDb. ...
Thus, the projection cathode ray tube is capable of reducing the deterioration of the light output with time, by suppressing ... A high-quality projection cathode ray tube is for projecting the image, displayed on a fluorescent surface, as an enlarged ... cathode ray tube is lowered with the operation time is disadvantageously larger than in a projection cathode ray tube having no ... Cathode ray tube with color filters aligned with phosphors. US6071657 *. Jan 28, 1999. Jun 6, 2000. Sony Corporation. Cathode ...
A color cathode-ray tube apparatus has a compensation mechanism for generating a magnetic field that compensates a change in a ... This invention relates to a color cathode-ray tube apparatus, and more particularly to an in-line color cathode-ray tube ... The color cathode-ray tube apparatus also includes an in-line electron gun assembly 4 located in the neck 3 of the funnel 2. ... 1, a color cathode-ray tube apparatus according to a first embodiment has an envelope formed of a panel 1 and a funnel 2 ...
... narrow-angle lens of high aperture designed for low magnification in the recording of cathode-ray tube i... ... Define cathode-ray tube lens: A high-quality, ... cathode-ray tube lens. A high-quality, narrow-angle lens of ... high aperture designed for low magnification in the recording of cathode-ray tube images.. ...
The lens system is designed to be used with a cathode ray tube having a face glass with an aspheric surface having phosphor ... a cathode ray tube having an face glass, said face glass having a convex surface to which are mounted a plurality of phosphor ... a cathode ray tube having a face glass, said face glass having a convex surface to which are mounted a plurality of phosphor ... a cathode ray tube having a face glass, said face glass having a convex surface to which are mounted a plurality of phosphor ...
Because of this complexity, conventional cathode ray tubes are much more difficult and expensive to manufacture than tubes ... Whereas the cathode ray tube described above is a twocomponent screen and the accessible colors are limited to a straight line ... For example, a cathode ray tube having a two-component phosphor constructed in accord with the instant invention when excited ... An alternate approach to controlling the emission color of a cathode ray tube is that of the penetron principle such as those ...
Five numerical techniques are presented which permit simulation of cathode-ray tube electron guns with speed and accuracy on a ...
Method of and device for the manufacture of a cathode-ray tube for displaying coloured pictures, as well as cathode-ray tube ... A face panel 52 for a color cathode ray tube is placed on top of the translating jig plate 41, over the cut-out 44. When the ... constructing a cathode ray tube having a viewing screen structure with a field of phosphor elements fabricated in accordance ... xvi) a translating jig plate, having a cut-out therewithin for supporting a face panel of a cathode ray tube, supported on said ...
The frame has a shape conforming to the cathode ray tube so as to be detachably secured to the cathode ray tube. ... A filter to be secured to a cathode ray tube of a display device of an office automation equipment such as a compu- ter or a ... EP0183491A3 - Filter for cathode ray tube - Google Patents. Filter for cathode ray tube Download PDF Info. Publication number. ... The frame has a shape conforming to the cathode ray tube so as to be detachably secured to the cathode ray tube. ...
Four producers of cathode ray tubes used for television and computer screens have agreed to a settlement in response to ... Cathode-ray tube claims struck out by UK court for lack of territorial connection * - United Kingdom ... Four producers of cathode ray tubes used for television and computer screens have agreed to a settlement in response to ... Producers of glass for cathode ray tubes for TV and computer screens settle with a £128m cartel Nabarro LLP ...
... cathode-ray tube explanation free. What is cathode-ray tube? Meaning of cathode-ray tube medical term. What does cathode-ray ... Looking for online definition of cathode-ray tube in the Medical Dictionary? ... cathode ray tube. See Video display unit. cath·ode ray tube. (CRT) (kathōd rā tūb) An evacuated tube containing a beam of ... Related to cathode-ray tube: Colour CRT. cath·ode ray tube (CRT), an evacuated tube containing a beam of electrons that can be ...
hot-cathode roentgen-ray tube answers are found in the Tabers Medical Dictionary powered by Unbound Medicine. Available for ... tube. Hot-cathode Roentgen-ray Tube [Internet]. In: Venes D, editors. Tabers Medical Dictionary. F.A. Davis Company; 2017. [ ... tube. Accessed April 22, 2019.. Hot-cathode roentgen-ray tube. (2017). In Venes, D. (Ed.), Tabers Medical Dictionary. ... "Hot-cathode Roentgen-ray Tube." Tabers Medical Dictionary, 23rd ed., F.A. Davis Company, 2017. Tabers Online, www.tabers.com/ ...
Increased micronucleated cell frequency related to exposure to radiation emitted by computer cathode ray tube video display ... of electromagnetic fields and very low frequency and extremely low frequency radiation emitted by computer cathode ray tube ...
Any vacuum tube which operates using a focused beam of electrons, originally called cathode rays, is known as a cathode ray ... Video camera tubes were devices based on the cathode ray tube that were used in television cameras to capture television images ... Several different types of tubes were in use from the early 1930s, and as late as the 1990s. In these tubes, the cathode ray ... discussed how a fully electronic television system could be realized by using cathode ray tubes (or "Braun" tubes, after their ...
Ferdinand Braun and the Cathode Ray Tube The indicator tube developed by "Braun" in the 1890s leasured electrical quantities ...
The Cathode Ray Tube and its Applications. Methods of Construction, and Use as an Oscillograph and as a Wattmeter ...
Figure 3-2. Cathode Ray Tube Television, ca. 1953. Cathode ray tubes found their greatest use in television sets and computer ... Figure 3-3. Cathode Ray Tube. When high-voltage electricity is applied across the electrodes at either end of the tube, ... Inside the tube, this stream of electrons hits a specially coated screen and is visible as a bright line. Early cathode ray ... Today, cathode ray tubes are being replaced by sleeker flat screen technology. (Unit 3, Section 2) ...
Figure 3-3. Cathode Ray Tube. When high-voltage electricity is applied across the electrodes at either end of the tube, ... Inside the tube, this stream of electrons hits a specially coated screen and is visible as a bright line. Early cathode ray ... By adding mercury to the open end of a J-tube, Boyle increased pressure on air trapped at the closed end of the tube. (Unit 2, ... Two containers of water are connected by a tube. If water is added or removed from one side, water will flow from one side to ...
... known as the Torricellis tube, was invented by Evangelista Torricelli. Today there are two types of barometers: the aneroid ... Who invented the cathode-ray tube?. A: The cathode-ray tube, also called Brauns electrometer, was invented by Ferdinand Braun ... The cathode-ray tube was the technology behind most displa... Full Answer , Filed Under: * Inventions ... A: In 1854, Frenchman Hippolyte Marie-Davey invented the first naval periscope, which was a sight tube made of two mirrors at ...
All written material is copyright © 2007-2019 Cathode Ray Tube and Frank Collins. Cathode Ray Tube is a not for profit ... Cathode Ray Tube by Frank Collins is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & ... CATHODE BLU-RAY ROUNDUP (89) CHANNEL SURFING (30) CLASSIC DOCTOR WHO ARCHIVE (83) COMPETITION (15) CONTINUITY ANNOUNCEMENT (36) ...
... not having a picture tube Tubes, parts thereof Cathoderay television picture tubes, color Tubes, parts thereof Cathoderay ... bulbs and tubes) for cathoderay tubes, and glass parts thereof cathoderay tubes or the like ... CRT Monitors Cathode Ray Tube Monitors, works in conjunction with computers . Flat Panel NonCRT monitors including ... IV Jennifer Atlee, Jeremy Gregory, and Randolph Kirchain, 2005, An overview of cathode ray tube recycling ...
A cathode-ray tube in which electrostatic deflection is used on the electron beam Explanation of electrostatic cathode-ray tube ... Find out information about electrostatic cathode-ray tube. ... electrostatic cathode-ray tube. electrostatic cathode-ray tube ... cathode-ray+tube,electrostatic cathode-ray tube,/a,. *Facebook ... A cathode-ray tube in which electrostatic deflection is used on ... Electrostatic cathode-ray tube , Article about electrostatic cathode-ray tube by The Free Dictionary https://encyclopedia2. ...
ATN - Cathode Ray Tube Separation Plant Dry Cutting. End of life televisions have to be recycled. The C(athode) R(ay) T(ube) ... A separate module is available that will allow you to purge aqueous samples onto an adsorbent tube at ambient temperatures. ...
Find tube cleaning articles on Environmental XPRT, the worlds largest environmental industry marketplace and information ... Materials recovery from waste cathode ray tubes (CRTs) Executive summary ObjectivesThis is the second interim report of this ... tube cleaning Articles. Related terms for "tube cleaning ": tube cleaning device articles , tube cleaning machine articles , ... boiler tube cleaning articles , condenser tube cleaning articles , automatic boiler tube cleaning articles , automatic boiler ...
870.2450 Medical cathode-ray tube display.. (a) Identification. A medical cathode-ray tube display is a device designed ... 870.2450 Medical cathode-ray tube display.. §870.2600 Signal isolation system.. §870.2620 Line isolation monitor.. §870.2640 ... 870.4390 Cardiopulmonary bypass pump tubing.. (a) Identification. A cardiopulmonary bypass pump tubing is polymeric tubing ... a) Identification. A catheter cannula is a hollow tube which is inserted into a vessel or cavity; this device provides a rigid ...
The projection cathode ray tubes can be arranged in various ways. One arrangement is to use one tube and three phosphor (red, ... Main article: Cathode Ray Tube. Though large-screen CRT TVs/monitors exist, the screen size is limited by their impracticality ... This is done to overcome the cathode ray tube size limit which is about 40 inches, the maximum size for a normal direct-view- ... CRT rear-projection television: Small cathode ray tubes create the image in the same manner that a traditional CRT television ...
cathode ray tubes; waste antifreeze. Env-Hw 1100. New Jersey. X. X. X. X. oil-based finishes; consumer electronics. N.J.A.C. 7: ... thermostats; waste cathode ray tube materials. R-97-08. Colorado. X. aerosol cans; electronic devices and electronic components ... thermostats; PCB-containing fluorescent light ballasts; cathode ray tubes. SUBCHAPTER 9. Virginia. X. X. X. X. Universal waste ... consumer electronic items; cathode ray tubes (CRTs) and other electronic wastes (excludes broken and crushed lamps/debris). ...
  • In nearly all present day color television tubes, the emission color is controlled by directing the exciting electrons to one of three physically separated phosphors having a distinct emission color. (google.ca)
  • An image dissector is a camera tube that creates an "electron image" of a scene from photocathode emissions (electrons) which pass through a scanning aperture to an anode, which serves as an electron detector. (wikipedia.org)
  • When high-voltage electricity is applied across the electrodes at either end of the tube, electrons are knocked off gas molecules inside the evacuated tube and travel toward the positive anode. (learner.org)
  • A matrix addressable flat panel display includes a flat cathode operable for emitting electrons to an anode when an electric field is produced across the surface of the flat cathode by two electrodes placed on each side of the flat cathode. (google.co.uk)
  • An electric field produced between the anode and the cathode causes these electrons to bombard a phosphor layer on the anode. (google.co.uk)
  • It is directly proportional to the voltage U across the , anode and cathode. (scribd.com)
  • The energy of the individual photons can be increased by increasing the voltage between the anode and cathode. (scribd.com)
  • A high-quality projection cathode ray tube is for projecting the image, displayed on a fluorescent surface, as an enlarged image on a screen in front of the fluorescent surface through a projection lens disposed at a given distance ahead. (google.com)
  • The present invention relates to a projection cathode ray tube for projecting the image, displayed on a fluorescent surface, on a screen in front of the fluorescent surface through a projection lens as an enlarged image. (google.com)
  • In an ordinary cathode ray tube, the light emitted from the fluorescent surface assumes a state approximate to what is called perfect diffusion light. (google.com)
  • Main mechanical parts: tube stand, examination table, grid for removing scattered photons (Bucky), X-ray detector: cassette with radiographic film and adjacent fluorescent screens (in radiography) or image intensifier (both on the way out) or flat panel digital detector (in fluoroscopy). (scribd.com)
  • It provides a comprehensive treatment of applications including lamps and cathode-ray tubes, x-ray and ionizing radiation, and for vacuum fluorescent and field emission displays and covers inorganic and organic electroluminescence materials. (routledge.com)
  • Phosphorescent materials are known for their use in radar screens and glow-in-the-dark materials, whereas fluorescent materials are common in cathode ray tube (CRT) and plasma video display screens, fluorescent lights , sensors, and white LEDs . (wikipedia.org)
  • CR excitable phosphors are used, for example, in cathode ray tubes while U.V. excitable phosphors are used in fluorescent lamps and mercury lamps and x-ray excitable phosphors are employed in x-ray tubes. (google.es)
  • Thomson's cathode-ray-tube experiment. (bartleby.com)
  • What was J.J. Thomson's cathode ray experiment? (reference.com)
  • J.J. Thomson's cathode ray experiment was a set of three experiments that assisted in discovering electrons. (reference.com)
  • A filter to be secured to a cathode ray tube of a display device of an office automation equipment such as a compu- ter or a word processor, wherein an electrically conductive filament is stretchedly provided on a frame. (google.com)
  • K hot filament cathode, W tungsten plate. (scribd.com)
  • The cavity magnetron doesn't suffer from the main disadvantages of vacuum tubes - there's no heater filament that can fail, and there's no fragile envelope like the glass envelope found on most familiar vacuum tubes. (slashdot.org)
  • A color cathode-ray tube apparatus has a compensation mechanism for generating a magnetic field that compensates a change in a horizontal-deflection magnetic field due to a change in the temperature of horizontal-deflection coils. (google.com)
  • The indicator tube developed by "Braun" in the 1890's leasured electrical quantities by the deflection of an electron beam. (scientificamerican.com)
  • Describe the deflection of cathode rays by electrically charged pl. (bartleby.com)
  • A cathode-ray tube in which electrostatic deflection is used on the electron beam. (thefreedictionary.com)
  • The cathode-ray tube, also called Braun's electrometer, was invented by Ferdinand Braun in 1897. (reference.com)
  • c) coating a transparent film of an inorganic material on an outermost surface of the multilayer optical interference film closest to the phosphor layer, to a thickness of at least 1.0 μm to thereby prevent the Browning phenomenon of deterioration of optical characteristics of the multilayer optical interference film, caused over time by bombardment of electron beams while the projection cathode ray tube is active. (google.com)
  • The lens system is designed to be used with a cathode ray tube having a face glass with an aspheric surface having phosphor elements mounted thereto. (google.de)
  • PRE NE ELECTRON ENERGY SENSITIVE PHOSPHORS FOR MU LTI-COLOR CA'I'I-IODE RAY TUBES This invention relates to luminescent materials and more particularly, to methods for preparing phosphor particles containing both luminescent and non-luminescent regions arranged such that the efficiency with which the particles generate light when they are excited by a beam of electrons depends on the energy of those electrons in a controllable manner. (google.ca)
  • a vacuum tube that focuses a beam of electrons onto a spot on a screen coated with a phosphor, creating a visible image of information on the face of the tube. (thefreedictionary.com)
  • Be able to discuss the main principles behind cathode ray tubes, mass spectrometers and particle accelerators. (warwick.ac.uk)
  • No. 4,642,695, filed by the applicant of the present invention, is disclosed a method of ameliorating the defect of a projection television set, namely, the poor convergence ratio exhibited when the beams of the respective monochromes emitted from the projection cathode ray tube are received by the projection lens unit. (google.com)
  • The diagonal screen size of a CRT television is limited to about 40 inches because of the size requirements of the cathode ray tube, which fires three beams of electrons onto the screen, creating a viewable image. (wikipedia.org)
  • Any vacuum tube which operates using a focused beam of electrons, originally called cathode rays, is known as a cathode ray tube (CRT). (wikipedia.org)
  • They had attempted to generate an electrical signal by projecting an image onto a selenium-coated metal plate that was simultaneously scanned by a cathode ray beam. (wikipedia.org)
  • Inside the CRT, a tightly focused beam of electrons, steered by electromagnets, hits a detector on the inside face of the tube, which glows and creates the image as the beam is scanned quickly across and up and down over the detector. (learner.org)
  • When increasing the magnitude of the electron beam current (by changing the cathode heating) the photon fluence rate (i.e. number of photons per unit area per second) of the X-ray beam increases however the energy of individual photons does not. (scribd.com)
  • These are likely to be the integrated digital televisions, whereas at the moment people are using cathode-ray tube TVs and set top boxes which give off a lot of energy as heat. (thefreedictionary.com)
  • In Japan, more and more cathode-ray tube televisions are replaced by liquid crystal, plasma, and other types of television, the association said. (thefreedictionary.com)
  • Retailers that sell Cathode Ray Tube (CRT) televisions or computer monitors may voluntarily choose to accept CRTs for reuse and recycling or post a DNR-provided sign with the nearest location were CRTs are collected for recycling or reuse. (iowadnr.gov)
  • We are the science and engineering powerhouse behind revolutionary display inventions, including glass cathode-ray bulbs for the first televisions and the LCD glass that made smartphones and laptop computers commonplace. (corning.com)
  • The potential damaging effects of electromagnetic fields and very low frequency and extremely low frequency radiation emitted by computer cathode ray tube video display monitors (VDMs) has become a concern within the scientific community. (scielo.br)
  • Such luminescent compositions, known generally as phosphors, emit visible light or other radiation when excited or irradiated by a different form of radiation, such as ultraviolet (U.V.), cathode ray (CR) or X-radiation. (google.es)
  • ABSTRACT: Background In a typical "generic" baghouse application, the cleaning is accomplished by back-flushing the filter with compressed air that travels through an orifice hole in a purge tube (blow pipe) and through a venturi. (environmental-expert.com)
  • The camera pickup tubes described in this article are also CRTs, but they display no image. (wikipedia.org)
  • Thus, the projection cathode ray tube is capable of reducing the deterioration of the light output with time, by suppressing the browning phenomenon of the glass surface of the face panel and the multilayer optical interference film. (google.com)
  • The cathode ray tube, prematurely pronounced dead on many occasions, was the subject of an international symposium at SCHOTT, Europe's biggest television glass manufacturer. (schott.com)
  • A high-quality, narrow-angle lens of high aperture designed for low magnification in the recording of cathode-ray tube images. (photonics.com)
  • A CT system includes a gantry, an x-ray source, a generator configured to energize the x-ray source to a first kVp and to a second kVp, a detector, and a controller. (freepatentsonline.com)
  • Four producers of cathode ray tubes used for television and computer screens have agreed to a settlement in response to European Commission allegations of involvement in an EU-wide co-ordinated price cartel between 1999 and 2004. (lexology.com)
  • X-ray imaging (XRI) is still one of the most important diagnostic methods used in medicine. (scribd.com)
  • Lite Array is a California-based company that, for the past few years, has been a pioneer in the research and development of thin film electroluminescent (TFEL) and organic light emitting diode (OLED or OEL) flat-panel, solid-state displays which possess performance characteristics superior to conventional cathode-ray tube (CRT) or liquid-crystal displays (LCD) principally in terms of resolution, brightness, and durability. (thefreedictionary.com)
  • Today, cathode ray tubes are being replaced by sleeker flat screen technology. (learner.org)
  • The flat cathode may consist of a cermet or amorphic diamond. (google.co.uk)
  • The flat cathode may consist of a cermet or amorphic diamond or some other combination of a conducting material and an insulating material such as a low effective work function material. (google.co.uk)
  • The size of the striking ray was tiny compared to the size of the target, allowing 483 horizontal scan lines per image in the NTSC format, 576 lines in PAL, and as many as 1035 lines in HiVision. (wikipedia.org)
  • The Dell 1900FP greatly improves viewing area compared with traditional 19-inch cathode-ray tube (CRT) monitors, and allows for viewing angles of up to 85 degrees from all sides of the monitor. (thefreedictionary.com)
  • Implementation of Helios Tube Cleaning System improves chiller efficiency by 8% and reduces energy consumption by over 2 million kW -hrs.Helios BACKGROUND In December 2014, VCU Medical Center in Richmond, VA installed Innovas Technologies' Helios Tube Cleaning System on a 1200 -ton Trane chiller identified as N. Hospital Chiller #1. (environmental-expert.com)
  • The term may apply specifically to a dissector tube employing magnetic fields to keep the electron image in focus, an element lacking in Dieckmann and Hell's design, and in the early dissector tubes built by American inventor Philo Farnsworth. (wikipedia.org)
  • The electric field produced causes electrons to hop on the surface of the cathode at the conducting-insulating interfaces. (google.co.uk)
  • The CyberPro5350 merges multiple, independent sources of audio, video, text, graphics and animation simultaneously and delivers a high-quality output stream to devices such as traditional cathode-ray tube television, digital television panel displays and other graphics-intense multiple display devices. (thefreedictionary.com)
  • Engelbart was cited for this award for his role in creating the foundations of personal computing, including continuous real-time interaction based on cathode-ray tube displays and the mouse, hypertext linking, text editing, online journals, shared screen teleconferencing, and remote collaborative work. (thefreedictionary.com)
  • Inside the tube, this stream of electrons hits a specially coated screen and is visible as a bright line. (learner.org)
  • A larger screen size requires a longer tube, making a CRT television with a large screen (50 to 80 inches) unrealistic because of size. (wikipedia.org)
  • H01J1/28 - Dispenser-type cathodes, e.g. (google.com)
  • A television picture tube for image display. (nasa.gov)
  • Video camera tubes were devices based on the cathode ray tube that were used in television cameras to capture television images prior to the introduction of charge-coupled device (CCD) image sensors in the 1980s. (wikipedia.org)
  • In these tubes, the cathode ray was scanned across an image of the scene to be broadcast. (wikipedia.org)
  • Among the first to design such a device were German inventors Max Dieckmann and Rudolf Hell, who had titled their 1925 patent application Lichtelektrische Bildzerlegerröhre für Fernseher (Photoelectric Image Dissector Tube for Television). (wikipedia.org)
  • However, they never transmitted a clear and well focused image with such a tube. (wikipedia.org)
  • founded in 1980, focused on designing, manufacturing and marketing cathode-ray tube (CRT) displays that were sold to original equipment manufacturers and display system integrators. (thefreedictionary.com)
  • In June 1908, the scientific journal Nature published a letter in which Alan Archibald Campbell-Swinton, fellow of the Royal Society (UK), discussed how a fully electronic television system could be realized by using cathode ray tubes (or "Braun" tubes, after their inventor, Karl Braun) as both imaging and display devices. (wikipedia.org)
  • A separate module is available that will allow you to purge aqueous samples onto an adsorbent tube at ambient temperatures. (environmental-expert.com)
  • A liquid thermometer works by using the thermal expansion of a liquid within a capillary tube to measure temperature. (reference.com)
  • In 1854, Frenchman Hippolyte Marie-Davey invented the first naval periscope, which was a sight tube made of two mirrors at 45-degree angles. (reference.com)
  • Coiled tubing is made of joint pipes, which are used as an alternative to traditional drilling string. (environmental-expert.com)
  • The TV included a circular cathode ray tube made by Corning. (corning.com)
  • It was during this engineer's work with magnetrons -- electron tubes used to generate radar signals and in this case, microwave radiations -- that he discovered the use of microwave cooking. (entrepreneur.com)
  • The major application areas of coiled tubing includes wellbore cleaning, well stimulation, logging, nitrogen pumping, perforations and drilling. (environmental-expert.com)