Share Email Print

Proceedings Paper

LEDs on curved ceramic substrate with primary optics for modification of luminous intensity
Author(s): An-Chi Wei; Jyh-Rou Sze; Jyh-Long Chern
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Unlike the conventional LED luminary with a planar substrate and only the forward emission, the proposed LED luminary with a curved ceramic substrate can perform both the forward and the backward emissions. Assembled with the proper primary optics, an illustrated LED bulb has been designed, fabricated and measured. The measured luminous intensity of the LED bulb has shown the backward emission and designed distribution with the beam-angle of 133°. To broaden the application areas, such a LED bulb on a curved substrate has been modularized as a streetlight. The measured results of the proposed streetlight have shown that the beam angle of the luminous intensity and the luminaire efficiency are 132° and 86%, respectively. Meanwhile, its luminous characteristics also fit the standard for lighting design of urban roads.asei.c

Paper Details

Date Published: 24 September 2011
PDF: 6 pages
Proc. SPIE 8123, Eleventh International Conference on Solid State Lighting, 81231I (24 September 2011); doi: 10.1117/12.893361
Show Author Affiliations
An-Chi Wei, Power Lens Technology Inc. (Taiwan)
Foxsemicon Integration Technology Inc. (Taiwan)
Jyh-Rou Sze, Instrument Technology Research Ctr. (Taiwan)
Jyh-Long Chern, Power Lens Technology Inc. (Taiwan)
Foxsemicon Integration Technology Inc. (Taiwan)
National Chiao Tung Univ. (Taiwan)

Published in SPIE Proceedings Vol. 8123:
Eleventh International Conference on Solid State Lighting
Matthew H. Kane; Christian Wetzel; Jian-Jang Huang, Editor(s)

© SPIE. Terms of Use
Back to Top