Leds. Medical search. Frequent questions

You also help the environment as LED bulbs use 75 percent less energy than incandescent bulbs. (pge.com)
For interior and exterior applications, Utlinon LEDs are a direct replacement for standard incandescent bulbs. (philips.com)
The cost per lumen of LEDs has held the technology back as a viable replacement for incandescent bulbs for all-purpose commercial and residential lighting. (eurekalert.org)
LEDs use about 75% less energy than incandescent bulbs and last longer, so the savings add up. (homedepot.com)
A 2017 survey showed that 70 percent of Americans had bought at least one LED light bulb and 38 percent had switched over from incandescent bulbs to LEDs. (howstuffworks.com)
A good-quality LED bulb theoretically can have a life span of 25,000 hours or more , while incandescent bulbs have a 1,000-hour life span. (howstuffworks.com)

The improved light distribution of LEDs, higher lumens per watt and lower maintenance costs can provide a strong business case for an upgrade project. (buildings.com)
40-Watt replacement using only 3.5Watts, Brightness 300 lumens, Dimmable, 2 bulbs per package, DECO MEDIUM BASE(E26), ST19 classic Glass Bulb, 2700K Soft White, LED light bulb, Suitable for use in enclosed fixtures. (homedepot.ca)

Other strategies for reducing the impact of the interface reflections include designing the LED to reabsorb and reemit the reflected light (called photon recycling) and manipulating the microscopic structure of the surface to reduce the reflectance, by introducing random roughness, creating programmed moth eye surface patterns. (wikipedia.org)

Light extraction in LEDs involves the set of particular problems that is connected with getting light from the light emitting p-n junction in an LED to the surroundings, such that the light might be useful, for instance for lighting. (wikipedia.org)
LED lighting lasts much longer than standard bulbs - up to 20 years longer. (pge.com)
I've read about the development of LED street lighting by Cree and a number of other manufactures and was curious just how well it actually worked. (eskimo.com)
5-1/2' Amber LED Strobe Light Beacon for warning/hazard lighting. (askjan.org)
Designed for dental office lighting, hospital lighting, classroom lighting, waiting rooms, basements, or other applications with suspended grid ceilings, the decorative LED light panels are an innovative alternative to window skylights. (askjan.org)
This Mini 360° LED Emergency Light Bar is the icon of utility vehicle lighting. (askjan.org)
The Cree LED XLamp XP-G4 LEDs are optimized for a wide range of both indoor and outdoor directional lighting applications requiring precise light control, good color over angle, and longterm reliability. (mouser.com)
Light up your life with the high-tech look and brilliant lighting that only Philips LEDs can deliver. (philips.com)
Visit our Philips Automotive Lighting Facebook page and share your Utlinon LED stories. (philips.com)
Princeton University researchers have developed a new method to increase the brightness, efficiency and clarity of LEDs, which are widely used on smartphones and portable electronics as well as becoming increasingly common in lighting. (princeton.edu)
At first glance, Sensity Systems seems like just another smart LED lighting vendor, promising improved energy efficiency and reduced maintenance costs. (businessgreen.com)
LEDs have enormous potential for providing long-lived high quality efficient sources of lighting for residential and commercial applications. (eurekalert.org)
Rising to this potential has been contingent upon solving the puzzle of LED efficiency droop," commented Speck, professor of Materials and the Seoul Optodevice Chair in Solid State Lighting at UCSB. (eurekalert.org)
LED lighting emits much less heat than the indoor and outdoor Christmas lights that you grew up with. (homedepot.com)
Efficient LED bulbs last much longer and use less energy than traditional lighting, and it's easy to add Cast to existing cabinets in your office-saving you time and money through reduced retrofitting costs. (hermanmiller.com)
When the new lighting standards began in 2012, prime replacements for the incandescent light bulb were the higher-efficiency compact fluorescent lamps (CFL) and the light emitting diodes (LEDs). (howstuffworks.com)
But as far as household lighting goes, LEDs weren't taking off. (howstuffworks.com)
In this article, we'll look into how LED light bulbs work, why they're a desirable lighting choice, and some of the pros and cons surrounding them. (howstuffworks.com)
An LED is what's called a ' solid-state lighting ' technology, or SSL. (howstuffworks.com)
The problem with LEDs as primary home lighting was that while they emit a lot of light, the structure of an LED caused some of that light to get trapped inside. (howstuffworks.com)
You can now find LED replacement bulbs that emit light equivalent to a 60-watt incandescent light bulb or higher, which makes them a viable technology for basic lighting needs at home. (howstuffworks.com)
The LED method of producing light uses far less energy to heat than do other lighting technologies. (howstuffworks.com)
If you operate your lighting for 4,320 hours per year (360 hours per month/90 hours a week/12.85 hours a day), a 100-watt incandescent bulb would use 432 kilowatt-hours per year , while an equivalent 14-watt LED bulb would use just over 60 kilowatt-hours per year. (howstuffworks.com)
Through its Illumi-Nation program, Kimco is upgrading all of its properties to LED lighting. (buildings.com)

Use LED bulbs to save money and improve the quality of light in your home. (pge.com)
Advanced LED bulbs are a PG&E Smart Choice product that offers the best combination of energy efficiency and performance on the market today. (pge.com)
Switching to advanced LED light bulbs can waste less energy and money. (pge.com)
Already using Advanced LED bulbs? (pge.com)
Panasonic LED bulbs are not only easy on the environment, they also provide significant cost savings over the lifetime of the bulb. (panasonic.com)
LED-type bulbs provide the same warm feeling of light as traditional bulbs, immediately light up to 100% when switched on - and are made without harmful chemicals such as Mercury. (panasonic.com)
Panasonic LED bulbs not only lower your energy bills, they also save money when purchasing due to their long life span. (panasonic.com)
Panasonic's innovative range of LED bulbs is among the industry's most energy-efficient, lightest and smallest. (panasonic.com)
Also, the bulbs in small LED Christmas lights are plastic, not glass, so they're more durable, allowing you to use the same light strings for multiple seasons. (homedepot.com)
But in the last decade or so, these LED replacement bulbs, the kind you just screw into a lamp like you do an incandescent bulb, have become much more common - which is to say a large number of businesses and households are using them. (howstuffworks.com)
Now, LEDs bulbs have brightened up. (howstuffworks.com)
Replacing your home's five most frequently used light bulbs with LED ENERGY STAR models, can save you $75 a year . (howstuffworks.com)
Which brings us to the pros and cons of LED light bulbs. (howstuffworks.com)
LED light bulbs have become very popular now. (howstuffworks.com)
Save energy by pairing your light fixture with the right LED bulbs. (homedepot.ca)

Substrates that are transparent to the emitted wavelength, and backed by a reflective layer, increase the LED efficiency. (wikipedia.org)
Also, surface roughening of LEDs is one of the key strategies to increased light extraction efficiency. (wikipedia.org)
Upgrade today and increase workflow efficiency with an LED printer. (xerox.com)
Using a new nanoscale structure, the researchers, led by electrical engineering professor Stephen Chou , increased the brightness and efficiency of LEDs made of organic materials (flexible carbon-based sheets) by 57 percent. (princeton.edu)
Although they are known for their efficiency, only a very small amount of light generated inside an LED actually escapes. (princeton.edu)
But Chou said such materials also absorb the light from the LED, reducing its brightness and efficiency by as much as half. (princeton.edu)
Princeton researchers have used their expertise in nanotechnology to develop an economical new system that markedly increases the brightness, efficiency and clarity of LEDs, which are widely used in smartphones and other electronics. (princeton.edu)
The researchers reported that PlaCSH increased the efficiency of light extraction to 60 percent, which is 57 percent higher than conventional high-end organic LEDs. (princeton.edu)
This could all change now that the cause of LED efficiency droop has been explained, according to researchers James Speck and Claude Weisbuch of the Center for Energy Efficient Materials at UCSB, an Energy Frontier Research Center sponsored by the U.S. Department of Energy. (eurekalert.org)
The inherent defects formed during the growth of GaInP NWs lead to non-radiative losses and limit the quantum efficiency of an LED. (lu.se)
This will lead to the development of high-quality LEDs with improved efficiency. (lu.se)

This project introduces a novel AI-enhanced functional microscopy to study the surface defect properties and associated recombination dynamics in an advanced gallium indium phosphide (GaInP) nanowire (NW) light-emitting diode (LED). (lu.se)

LEDs offer several advantages over incandescent or fluorescent lights: they are far more efficient, compact and have a longer lifetime, all of which are important in portable displays. (princeton.edu)
The U.S. Department of Energy recently estimated that the widespread replacement of incandescent and fluorescent lights by LEDs in the U.S. could save electricity equal to the total output of fifty 1GW power plants. (eurekalert.org)

The higher brightness also relieves the heating problem caused by the light trapped in standard LEDs. (princeton.edu)
Features include a life span of up to 100,000 hours, brightness as high as 10,000 mcd at 20 mA for red LEDs, and an industrial temperature range from -40¡C to +85¡C. Available colors include white, blue, red and green. (electronicdesign.com)
So you get the long-run times and indestructibility of an LED with a new level of brightness that leaves other LEDs in the dark. (streamlight.com)

Which is brighter -- LED or Laser? (benq.com)
Catering to the continuing demand for brighter and higher quality LEDs, the mega bright series LEDs are said to feature a breakthrough design in the latest InGaN and InAlGaP technologies. (electronicdesign.com)
With a brighter, more powerful, blinding light than any LED that's come before. (streamlight.com)

A LED, or light-emitting diode, is an electronic device that emits light when electrical current moves through two terminals. (princeton.edu)
In fact, a rudimentary LED emits only about 2 to 4 percent of the light it generates. (princeton.edu)
image: This LED emits light under forward bias in an ultra high vacuum chamber allowing simultaneous electron emission energy. (eurekalert.org)

Philips Ultinon LEDs…stunning illumination. (philips.com)

The method also improves the picture clarity of LED displays by 400 percent, compared with conventional approaches. (princeton.edu)
ViewSonic has introduced three new "frameless" displays in the VX70Smh-LED series. (tomshardware.com)

Composed of nine lightweight, triangular LED lights that can be fit together in different configurations, the Nanoleaf. (inhabitat.com)
LED printers use an array of lights to fuse toner on to a sheet of paper. (xerox.com)
In Seattle on 10th Ave E between Harvard and Roy there is a section of street lighted by LED lights. (eskimo.com)
Concern re LED street lights and the dark skies iniative is not founded on fact. (eskimo.com)
LED street lights, in our experience as a major povider, have the opposite result as unlike high pressure sodium lights the LED light is focused on the ground through a specially designed lens system.Light pollution is therefore minimal. (eskimo.com)
Hideaway LED Strobe lights provide warning protection for fire, rescue, police, ambulance, or construction vehicles requiring powerful discrete or even hidden warning lights. (askjan.org)
It is your own responsibility to ensure that the use of the LED upgrade lights complies with applicable local legal requirements. (philips.com)
Many other automotive LED lights use a large number of low output LEDs and hope that enough light gets to where it should be. (philips.com)
Whether you line every inch of your roof in multi-colored lights or you prefer the more refined look of white candles in the windows, you can use LED Christmas lights to achieve your favorite holiday looks for less. (homedepot.com)
LED indoor Christmas tree lights are safe to use on natural or artificial Christmas trees . (homedepot.com)
LED Christmas lights come in all shapes and sizes, from mini dome sets and round globes to dangling icicles. (homedepot.com)
White LED lights come in different color tones, so that you can opt for warm white or cool tones. (homedepot.com)
Because they have a longer bulb life, energy efficient LED lights will save you money this holiday season. (homedepot.com)
LED lights come in a variety of shapes and sizes. (howstuffworks.com)
Enter the LED lights. (howstuffworks.com)
LEDs have been around for many years - they light up digital clocks, Christmas lights, flashlights, traffic signals, etc. (howstuffworks.com)
Choose from LED garden lights, LED flood lights and more illuminate your yard or deck. (homedepot.ca)
20ct LED Halloween String Lights Orange Flicker - Hyde & EEK! (target.com)

The LED bulb provides long-lasting light and decreases your energy consumption. (hermanmiller.com)

Fact: Former Led Zeppelin star Robert Plant is planning to hit the road with The Pixies . (contactmusic.com)
Soundgarden star Chris Cornell interviewed Led Zeppelin legend Jimmy Page in front of a live audience at an event in Los Angeles to promote the veteran rocker's photographic autobiography. (contactmusic.com)
Led Zeppelin star Jimmy Page is a big fan of newcomers Royal Blood . (contactmusic.com)
Led Zeppelin star Robert Plant on his favourite character from Arthurian legend. (contactmusic.com)
Robert Plant admits Led Zeppelin were never a great soundcheck act. (contactmusic.com)
Led Zeppelin star Jimmy Page turned 70 on Thursday (09Jan14). (contactmusic.com)
Fact: Drummers including former GUNS N' ROSES star STEVEN ADLER and Black Sabbath 's Vinny Appice have signed up to take part in a tribute performance to late Led Zeppelin percussionist John Bonham. (contactmusic.com)
Led Zeppelin star John Paul Jones thrilled fans by joining Seasick Steve for his set at Britain's Isle of Wight Festival on Saturday (11Jun11). (contactmusic.com)
Robert Plant on his recent return to Morocco, where he retraced the inspirational trip he took with Led Zeppelin bandmate Jimmy Page in 1978. (contactmusic.com)
Robert Plant insists another Led Zeppelin reunion is more and more unlikely as the months pass. (contactmusic.com)
JOHN BONHAM's son JASON was stunned by the lack of bad behaviour when he filled in for his late father at Led Zeppelin 's 2007 reunion show. (contactmusic.com)
Robert Plant isn't keen on reforming Led Zeppelin for a world tour - because U2's efforts have put him off. (contactmusic.com)
Led Zeppelin legend John Paul Jones will be honoured at Britain's 2010 Gold Badge Awards next month (Oct10). (contactmusic.com)
Fact: Former Led Zeppelin rocker Robert Plant has joined the star-studded line-up for the BBC Radio 2 Electric Proms in London. (contactmusic.com)

Whether you have a small home office or a large business, an LED printer can improve your workflow in numerous ways. (xerox.com)
Xerox offers a line of award-winning LED printers for reliable paper handling that can improve your workflow. (xerox.com)

But the spectrum of the LED lamps is much more broadband. (eskimo.com)
Why are laser and LED replacing legacy lamps in projectors? (benq.com)
Why will laser and LED projectors replace traditional lamps? (benq.com)
So, an LED bulb was traditionally dimmer than an incandescent bulb, and most people want their lamps and ceiling fixtures to be pretty bright. (howstuffworks.com)

In December 2007, scientists at Glasgow University claimed to have found a way to make LEDs more energy efficient, imprinting billions of holes into LEDs using a process known as nanoimprint lithography. (wikipedia.org)

The researchers also report their method should yield similar improvements in LEDs made in inorganic (silicon-based) materials used most commonly today. (princeton.edu)

The refractive index of most LED semiconductor materials is quite high, so in almost all cases the light from the LED is coupled into a much lower-index medium. (wikipedia.org)
In 2011, UCSB professor Chris van de Walle and colleagues theorized that a complex non-radiative process known as Auger recombination was behind nitride semiconductor LED droop, whereby injected electrons lose energy to heat by collisions with other electrons rather than emitting light. (eurekalert.org)
In the case of a traditional LED, that piece of matter is a semiconductor . (howstuffworks.com)

Super Bright LEDs, Inc. (askjan.org)
Whether you're looking for a bright, new interior or a head turning exterior, Philips leading edge LED technology makes the difference. (philips.com)
The Chromatic: LED Color Spectrum Clock has 60 unique LEDs for a vibrant and bright display. (geekalerts.com)
With a slim profile and optional valance, Cast LED Light is a discreet but bright addition to your workspace. (hermanmiller.com)
Designed to showcase an attractive color with a stylish LED filament, this bulb turns on instantly and glows bright blue through a clear glass housing. (homedepot.ca)

Marketing-led growth would have tried to make the shift with ads targeting men. (forbes.com)
Compact designs, fast speeds and outstanding print quality at affordable prices make LED printers ideal for any office. (xerox.com)
Let's look at the factors that make the difference between laser, LED, and lamp projectors and how each one of them could be suited for home cinema or commercial use. (benq.com)

17 W high voltage power LED light source, with 12 x 2 W z-power Seoul Semiconductor's white LEDs, color temperature 5000-7000 K, socket E27, operating voltage AC 95-264 V, operating current 175-65 mA, power consumption max. (strato.de)

This structure was used to design the inhibitory compounds that led eventually to the anti-flu drugs Relenza and Tamiflu. (smh.com.au)
Knowledge gained from this study is expected to result in new ways to design LEDs that will have significantly higher light emission efficiencies. (eurekalert.org)
These findings will enable us to design LEDs that minimize the non-radiative recombination and produce higher light output. (eurekalert.org)
Our new VX70Smh-LED Series offers the best combination of performance and features in the industry, and we've sweetened the deal by packaging it up in a beautiful frameless bezel design," said Erik Willey, LCD monitor and PC product marketing director at ViewSonic. (tomshardware.com)

The experiment used an LED with a specially prepared surface that permitted the researchers to directly measure the energy spectrum of electrons emitted from the LED. (eurekalert.org)

Objective: The aim of this study was to compare dental color changes after a one-session tooth bleaching procedure using 35% hydrogen peroxide with and without hybrid light (LED/diode laser) activation. (bvsalud.org)
Conclusion: The results of the present study showed that there are no differences in dental color changes between dental bleaching with gel and LED/Laser activation and dental bleaching with only gel. (bvsalud.org)

And a LED replacement light bulb has a life 24,000 hours longer than that of a traditional incandescent 60-watt bulb. (howstuffworks.com)

Philips Ultinon LEDs have been engineered to provide the proper light beam focus demanded by automotive applications. (philips.com)
Getting optimum beam output from an LED light is not based on the number of LED chips mounted on the device, but rather it's about directing the light output where it needs to be: on the road. (philips.com)

Until now, scientists had only theorized the cause behind the phenomenon known as LED "droop"-a mysterious drop in the light produced when a higher current is applied. (eurekalert.org)

That would seem to address light pollution issues as well as save energy and extend the life of the LEDs. (eskimo.com)

Some of our LED printer models are equipped with ConnectKey ® Technology that functions as a workplace assistant. (xerox.com)
Technology that spreads light using a combination of LED packages arranged in a circular pattern inside a large globe and a double reflector structure. (panasonic.com)
Enjoy all the benefits of advanced LED energy-saving technology with the Feit Electric OM200/830/LED high-lumen LED light bulb. (homedepot.ca)
Enjoy all the benefits of advanced LED energy-saving technology with the Feit Electric A19/TB/LED glass filament LED A19 blue light bulb. (homedepot.ca)

With our easy to use tool, you can find the perfect LED for your car and click to buy from our participating partners. (philips.com)
Find the perfect LEDs for your outdoor space. (homedepot.ca)

Standing 3 feet tall, our commercial-quality 3D LED Lighted Tree serves as a stunning addition to your outdoor holiday decor. (frontgate.com)

Decrease your electricity usage and save on operating costs with the Cast LED Light. (hermanmiller.com)

The XP-G4 LEDs feature an array of innovations, like an elevated maximum drive current of 3000mA and an optimized optical profile that maximizes on-axis light output, casting brilliance in every direction. (mouser.com)

Santa Barbara, Calif. -) Researchers at University of California, Santa Barbara, in collaboration with colleagues at the École Polytechnique in France, have conclusively identified Auger recombination as the mechanism that causes light emitting diodes (LEDs) to be less efficient at high drive currents. (eurekalert.org)
Researchers investigated which effect exercise led by trainers and information to patients had and if this might be better than other treatments and types of training. (lu.se)
The researchers investigated if the use of opioids decreased when the participants got to try the intervention, exercise led by a trainer, and patient information. (lu.se)
Furthermore, the researchers mean that more research is needed in the field to tell if exercise led by a trainer and information to the patients decrease the use of opioids. (lu.se)

Stated very simply, an LED produces light when an electrical current passes through a microchip , which illuminates the tiny light sources called LEDs and the result is visible light. (howstuffworks.com)

ViewSonic launched its new VX70Smh-LED Series of desktop monitors which include the 27-inch VX2770Smh-LED, the 23-inch VX2370Smh-LED , and the 22-inch VX2270Smh-LED. (tomshardware.com)

Philips Ultinon LEDs employ a few, high-powered, automotive-grade LEDs, arranged so that their light output is focused in the same way that light output from a conventional filament-based bulb is focused by the reflector. (philips.com)

5 mm høj lysstyrke rød AlInGaP/GaP LED, peak bølgelængde 630 nm, betragtningsvinkel 44 grader (±22°), lysstyrke 2700 mcd, fremad spænding 2,2 V. (strato.de)

LEd includes a project manager, a powerful editor, an integrated spellchecker and thesaurus, a built-in DVI viewer, descriptive hints for L a T e X commands, a code completion mechanism, a multilingual environment, and more. (ctan.org)

With a user-led onboarding process with constant personalization, Pinterest boomed into one of the biggest social media sites, currently sitting at 367 million monthly active users as of 2020. (forbes.com)

With Philips Ultinon LEDs, you will be one of a kind. (philips.com)
Streamlight introduces a whole new kind of LED. (streamlight.com)

Community-led monitoring or CLM is a routinized process initiated and implemented by local HIV-positive and HIV-affected communities, community-based organizations and other civil society groups that identifies HIV service delivery successes, diagnoses problems, uses quantitative and qualitative data to overcome barriers and ensure that HIV service beneficiaries receive optimal client-centered services. (cdc.gov)

Depending on the printer model and paper output, LED printers are capable of generating thousands of lines in just a few seconds. (xerox.com)

Cree LED XLamp® XP-G4 LEDs are fourth-generation Cree LEDs that offer efficacy and remarkable optical performance. (mouser.com)

Analytical, Diagnostic and Therapeutic Techniques and Equipment4

Phenomena and Processes4

Health Care3

Incandescent bulbs6

Lumens2

Reflected light1

Lighting24

Bulbs15

Efficiency11

Nanowire1

Fluorescent2

Brightness3

Brighter3

Emits3

Illumination1

Displays2

Lights18

Energy consumption1

Zeppelin14

Improve your workflow2

Lamps4

Holes1

Improvements1

Semiconductor3

Bright5

Make3

Temperature1

Design4

Spectrum1

Color2

Watt1

Beam2

Higher1

Life1

Technology4

Find2

Quality1

Save1

Feature1

Researchers4

Result1

Series1

Light output1

Peak1

Mechanism1

Constant1

Kind2

Process1

Output1

Performance1