Share Email Print
cover

Proceedings Paper

Secondary optical design for safety light curtains
Author(s): Yu-Hsiang Hsu; Yi-Yung Chen; Allen Jong-Woei Whang
Format Member Price Non-Member Price
PDF $17.00 $21.00
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

LED has many advantages that will replace traditional light sources. In this article, we design a convergence lens and use a LED light source with ± 30° half-power angle. The lens can convergence light source and make it become parallel light. The goal to achieve high directivity can be applied to wireless sensors. According to the simulation results, compared to the LED with dome lens that has ± 0.6° half-power angle, the LED use our design's lens has ± 0.34° half-power angle. In the same transmission distance, the LED with our design's lens has more than 200 times received energy.

Paper Details

Date Published: 6 February 2012
PDF: 11 pages
Proc. SPIE 8278, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVI, 827805 (6 February 2012); doi: 10.1117/12.909873
Show Author Affiliations
Yu-Hsiang Hsu, National Taiwan Univ. of Science and Technology (Taiwan)
Yi-Yung Chen, National Taiwan Univ. of Science and Technology (Taiwan)
Allen Jong-Woei Whang, National Taiwan Univ. of Science and Technology (Taiwan)


Published in SPIE Proceedings Vol. 8278:
Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVI
Klaus P. Streubel; Heonsu Jeon; Li-Wei Tu; Norbert Linder, Editor(s)

© SPIE. Terms of Use
Back to Top