Secondary optical design for safety light curtains

Yu-Hsiang Hsu; Yi-Yung Chen; Allen Jong-Woei Whang

doi:10.1117/12.909873

6 February 2012 Secondary optical design for safety light curtains

Yu-Hsiang Hsu, Yi-Yung Chen, Allen Jong-Woei Whang

Proceedings Volume 8278, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVI; 827805 (2012) https://doi.org/10.1117/12.909873
Event: SPIE OPTO, 2012, San Francisco, California, United States

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.

Citation Download Citation

Yu-Hsiang Hsu, Yi-Yung Chen, and Allen Jong-Woei Whang "Secondary optical design for safety light curtains", Proc. SPIE 8278, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVI, 827805 (6 February 2012); https://doi.org/10.1117/12.909873

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