B-HEX pupil expander: Pupil expansion redefined
نویسندگان
چکیده
منابع مشابه
Diffractive exit-pupil expander for display applications.
Two-dimensional binary diffraction gratings can be used in wearable display applications as exit-pupil expanders (EPEs) (or numerical-aperture expanders) to increase the size of the display exit pupil. In retinal scanning displays the EPE is placed at an intermediate image plane between the scanners and the display exit pupil. A focused spot scans across the diffractive EPE and produces multipl...
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PREVious papers (Lowe, 1964a) have remarked that when the pupils of eyes with shallow anterior chambers, narrow angles, and open peripheral iridectomies are dilated with homatropine, a considerable proportion of the eyes with persistently narrow angles develop angle-closure, a consequent fall in outflow facility, and a rise in intra-ocular pressure that may reach the fifties within two hours. W...
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BOTH hypotheses and conclusions relating teacher-pupil behavior to pupil growth tend to be stated in simple, declara tive sentences, as: "Increased teacher indi rectness is associated with increased pupil growth in subject matter and more favor able attitudes"; or, "Decreased teacher criti cism is associated with more favorable pu pil attitudes and increased subject-matter growth." Yet probably...
متن کاملComparison between Threshold Pupil Perimetry and Suprathreshold Pupil Perimetry
Purpose: Pupil perimetry has so far been performed by the two following methods: suprathreshold perimetry during which the amplitude or ratio of pupil constriction is determined, and threshold perimetry during which the threshold of pupil reaction is determined. The authors compared the values obtained with these two methods using the modified Octopus 1-2-3. Subjects and methods: Pupil perimetr...
متن کاملPupil-segmentation-based adaptive optical microscopy with full-pupil illumination.
Optical aberrations deteriorate the performance of microscopes. Adaptive optics can be used to improve imaging performance via wavefront shaping. Here, we demonstrate a pupil-segmentation based adaptive optical approach with full-pupil illumination. When implemented in a two-photon fluorescence microscope, it recovers diffraction-limited performance and improves imaging signal and resolution.
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ژورنال
عنوان ژورنال: Indian Journal of Ophthalmology
سال: 2017
ISSN: 0301-4738
DOI: 10.4103/ijo.ijo_673_17