نتایج جستجو برای: glare
تعداد نتایج: 1364 فیلتر نتایج به سال:
The aim of this work is to simulate glaring headlights by measuring the effects of glare on human contrast perception and including the results in a driving simulator. As contrast perception is highly subjective, two psychophysical experiments were performed. For different glare intensities and durations, the recurring contrast perception of the subject was recorded. Further, varying background...
This document describes a visual comfort calculation developed by the LESO group at EPFL during Spring of 1991. The calculation uses the RADIANCE synthetic imaging system [Ward90] to compute luminance values from a computer model of an architectural space and the lighting and daylighting of that space. These luminance values are then applied to a selected glare calculation procedure to arrive a...
Because of the increased interest in deploying concentrating solar power systems, glint and glare from concentrating solar collectors and receivers is receiving increased attention as a potential hazard or distraction for motorists, pilots, and pedestrians. This paper provides a summary of previous analyses to evaluate glint and glare from concentrating solar power plants. In addition, a review...
Spatial contrast sensitivity and disability glare were measured in a large sample (n = 90, 30 per decade) of middle-aged subjects, aged 21-50 years, who had clear media and were ophthalmologically normal. We found no significant differences in the contrast sensitivities as a function of age in the middle years for (1) gratings generated on a monitor; (2) interference gratings generated in the r...
To examine how the time course of rapid events of adaptation affect motion vision, the lower threshold of motion (LTM) was measured for suprathreshold sinusoidal gratings in presence of transient and steady glare. In the case of the transient condition, glare and stimulus were presented separated in time by a variable extent (SOA: 50-450 ms). A two alternative forced choice paradigm using the m...
This paper describes methods to reduce channel contention during distributed setup of high-speed connections in a mesh network of Cross-Connects (XCs) [1]. A particular aspect of contention addressed here is when two different connection requests arrive on a pair of adjacent XCs and they choose the same restoration channels from spare inventory. Such a contention problem is often referred to as...
We report spectroscopic detection of three z ∼ 6 Lyman-α emitting galaxies, in the vicinity of the Hubble Ultra Deep Field, from the early data of the Gemini Lyman-α at Reionisation Era (GLARE) project. Two objects, GLARE#3001 (z = 5.79) and GLARE#3011 (z = 5.94), are new detections and are fainter in z (z AB = 26.37 and 27.15) than any Lyman break galaxy previously detected in Lymanα. A third ...
PURPOSE To report a case of rainbow glare following femtosecond laser-assisted LASIK (femto-LASIK) with the Wavelight FS-200 femtosecond laser (Alcon Laboratories, Inc., Fort Worth, TX). METHODS A patient was treated bilaterally for myopia with femto-LASIK using the FS-200 femtosecond laser. Postoperatively, he complained of rainbow glare in his right eye. RESULTS Three months postoperative...
PURPOSE To report the effect of wavefront-guided photorefractive keratectomy and corneal collagen cross-linking (CXL) on visual problems after Ferrara ring segment placement. MATERIALS AND METHODS A 32-year-old male patient was treated with a Ferrara ring segment for keratoconus. One year later, the ring was removed due to severe glare complaints. After 6 months, wavefront-guided photorefract...
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