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Anti-glare LED lamps with adjustable illumination light field.

Abstract
We introduce a type of LED light-gauge steel frame lamp with an adjustable illumination light field that does not require a diffusion plate. Base on the Monte Carlo ray tracing method, this lamp has a good glare rating (GR) of 17.5 at 3050 lm. Compared with the traditional LED light-gauge steel frame lamp (without diffusion plate), the new type has low GR. The adjustability of the illumination light field could improve the zebra effect caused by the inadequate illumination light field of the lamp. Meanwhile, we adopt the retinal image analysis to discuss the influence of GR on vision. High GR could reflect stray light on the retinal image, which will reduce vision clarity and hasten the feeling of eye fatigue.
AuthorsYung-Sheng Chen, Chung-Yi Lin, Chun-Ming Yeh, Chie-Tong Kuo, Chih-Wei Hsu, Hsiang-Chen Wang
JournalOptics express (Opt Express) Vol. 22 Issue 5 Pg. 5183-95 (Mar 10 2014) ISSN: 1094-4087 [Electronic] United States
PMID24663858 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

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