Dual focal plane augmented reality interactive display with gaze-tracker
... we propose a see-through near-eye display mechanism that generates two separate virtual image planes at arms length depth ... even when the virtual objects overlap and partially occlude in the axial direction. The system also provides correct motion ... while the eye is located in the center of eye-box. In Fig. 3(b), the eyes are shifted by 32.5 mm and the distortion values of ... while the eye is in the center of eye-box. b) The distortion values of different field points, while eyes are in the natural ...
Wavefront sensorless adaptive optics optical coherence tomography for in vivo retinal imaging in mice
1. W. J. Donnelly 3rd and A. Roorda, "Optimal pupil size in the human eye for axial resolution," J. Opt. Soc. Am. A 20(11), ... We could potentially increase the acquisition imaging speed by a factor of 2 by reducing the A-scan length to 1024 pixels per A ... W. J. Donnelly and A. Roorda, "Optimal pupil size in the human eye for axial resolution," J. Opt. Soc. Am. A 20(11), 2010-2015 ... W. J. Donnelly and A. Roorda, "Optimal pupil size in the human eye for axial resolution," J. Opt. Soc. Am. A 20(11), 2010-2015 ...
Multiscale lens design
If we take a given design and multiply all length parameters by M (i.e. scale the lens by the factor M), we can use the scale ... The conventional design trades off defocus with field curvature, blurring the axial field in order to improve the image at ... and an appearance much like an inside-out flys eye. One way of interpreting this system layout is the following. If we have a ... The detector array is displaced away from this image plane by the focal length of the lenslets, such that each pixel on the FPA ...
Two-wavelength Tm:YLF/KGW external-cavity Raman laser at 2197 nm and 2263 nm
where L is the crystal length and N. e. f. f. is the effective number of passes of SRS radiation trough the cavity. N. e. f. f ... A. Sabella, J. A. Piper, and R. P. Mildren, "Efficient conversion of a 1.064 μm Nd:YAG laser to the eye-safe region using a ... Due to the KGW bi-axial properties, the Raman laser is able to lase separately at two different output lines, 2197 nm and 2263 ... is the optical length of the cavity, c is the speed of light, τ. 0. is the pump pulse duration, and R is the reflectance ...
High speed, wide velocity dynamic range Doppler optical coherence tomography (Part IV): split spectrum processing in rotary...
21) with the coherence length (lc) of the system from [15] was plotted. Coherence length was increased by a factor of 2 and 4 ( ... In OCT, the axial displacement between two adjacent A-lines is (3). Δ. z. =. v. z. T. =. v. z. f. a. ... "Full range complex spectral optical coherence tomography technique in eye imaging," Opt. Lett. 27, 1415-1417 (2002). [Crossref ... 21) with the coherence length (. lc. ) of the system from [15] was plotted. Coherence length was increased by a factor of 2 and ...
Functional optical coherence tomography of rat olfactory bulb with periodic odor stimulation
The pixel size of the filter was set as 19 pixels (z-axis) × 10 pixels (x-axis) × 5 pixels (y-axis). The length of one side ... Polarization properties of single layers in the posterior eyes of mice and rats investigated using... ... to minimize time-dependent axial movement errors, 50 B-scan images (all zx-planes) were corrected individually for misalignment ... 1) To obtain a complex OCT data at the stimulus frequency 0.0167 Hz, FFT computation (Length: 213) was performed with time ...
Astigmatism and spherical aberrations as main causes for degradation of ultrafast laser-induced cavitation in water
... aberrations found in human eyes [14-16] and animal eyes [17]. If remarkable progress has been achieved in the field of adaptive ... Not only an increase of the LIOB in presence of spherical aberrations is reported with an axial spreading of the plasma, but ... is the focal length of the lens, and $\mathcal {F}\{.\}$ corresponds to the Fourier transform. We used a classic Fresnel ... Cavitation induced by shock wave focusing in eye-like experimental configurations. Tomaž Požar, et al.. Biomed. Opt. Express 11 ...
OSA | OE Vol. 26 Iss. 22
Pulse length variation causing spectral distortions in OPO-based hyperspectral coherent Raman scattering microscopy ... Orthogonal polarization switchable lasing based on axial polarization pulling of SBS in polarization-maintaining fiber ... High-resolution additive light field near-eye display by switchable Pancharatnam-Berry phase lenses: errata ... Single-shot ranging and velocimetry with a CW lidar far beyond the coherence length of the CW laser ...
European Conference on Biomedical Optics 2019
AOCTEI - Advances of OCT for Eye Imaging Progress in OCT-based functional cellular resolution retinal imaging in mice: ... A nanometer axial resolution X-ray coherence tomography with a broadband SXR radiation emitted from a compact laser plasma ... Maximum Length Sequence Algorithm for Wavefront Shaping. Oleksandr Danko, Volodymyr Danko, Andrey Kovalenko, and Vitalij ... Artificial test eyes for multimodal imaging. Wim de Jong, Tjeerd Russchenberg, Arjen Amelink, Michael Kempe, Matthias Salas, ...
OSA | OE Vol. 28 Iss. 3
Retinal projection type lightguide-based near-eye display with switchable viewpoints. Chanhyung Yoo, Minseok Chae, Seokil Moon ... Simultaneous measurement of gas absorption and path length by employing the first harmonic phase angle method in wavelength ... Accelerated convergence extended ptychographical iterative engine using multiple axial intensity constraints. Jiantai Dou, ...