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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 9, Iss. 5 — Apr. 29, 2014

Anti-glare LED lamps with adjustable illumination light field

Yung-Sheng Chen, Chung-Yi Lin, Chun-Ming Yeh, Chie-Tong Kuo, Chih-Wei Hsu, and Hsiang-Chen Wang  »View Author Affiliations

Optics Express, Vol. 22, Issue 5, pp. 5183-5195 (2014)

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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.

© 2014 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(330.1070) Vision, color, and visual optics : Vision - acuity
(220.2945) Optical design and fabrication : Illumination design

ToC Category:
Geometric Optics

Original Manuscript: September 18, 2013
Revised Manuscript: January 13, 2014
Manuscript Accepted: February 19, 2014
Published: February 27, 2014

Virtual Issues
Vol. 9, Iss. 5 Virtual Journal for Biomedical Optics

Yung-Sheng Chen, Chung-Yi Lin, Chun-Ming Yeh, Chie-Tong Kuo, Chih-Wei Hsu, and Hsiang-Chen Wang, "Anti-glare LED lamps with adjustable illumination light field," Opt. Express 22, 5183-5195 (2014)

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