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Proceedings Paper

A microstructure diffuser plate for LED lighting
Author(s): Chieh-Lung Lai; Jian-Shian Lin; Takeuchi Yoshimi; Wen-Hao Fan
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Paper Abstract

In this article we will introduce a Light Emitting Diode (LED) lighting diffuser plate which diffuses light by optical microstructure. In LED lighting, LED array is the most popular method to attain the illuminance requirement, but this method will produce the glaring and non-uniform illuminance problems. Traditionally, diffuser, which is comprised of diffuser particles, is used to solve the above problems, but it also produces another problem which is low lighting efficiency. Therefore, we use optical microstructure to replace the diffuser particles to solve the problems of LED lighting but only reduce a little lighting efficiency. Moreover, we could control the lighting area of the LED lamp by designing the optical microstructure.

Paper Details

Date Published: 26 September 2007
PDF: 10 pages
Proc. SPIE 6758, Photonics in the Transportation Industry: Auto to Aerospace, 67580K (26 September 2007); doi: 10.1117/12.733534
Show Author Affiliations
Chieh-Lung Lai, Industrial Technology Research Institute (Taiwan)
Jian-Shian Lin, Osaka Univ. (Japan)
Industrial Technology Research Institute (Taiwan)
Takeuchi Yoshimi, Osaka Univ. (Japan)
Wen-Hao Fan, Industrial Technology Research Institute (Taiwan)


Published in SPIE Proceedings Vol. 6758:
Photonics in the Transportation Industry: Auto to Aerospace
Alex A. Kazemi; Christopher S. Baldwin, Editor(s)

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