Design of a bike headlamp based on a power white-light-emitting diode

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题名:	Design of a bike headlamp based on a power white-light-emitting diode
作者:	Lo,YC;Chen,CC;Chou,HY;Yang,KY;Sun,CC
贡献者:	光電科學與工程學系
关键词:	ILLUMINATION;LEDS;LENS
日期:	2011
上传时间:	2012-03-27 18:15:51 (UTC+8)
出版者:	國立中央大學
摘要:	In this letter, we present a new design for a light-emitting diode-based bike headlamp. The optical design contains two horizontal reflectors and a light pipe with two horizontal parallel mirrors. The designed illumination pattern in our simulations performs a contrast of 250 in the K-mark regulation, and it was measured to be 21 in the experiment with a not well-finished prototype, which was operated at 1 W. The contrast is higher than 5 as requested in the regulation. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3615278]
關聯:	OPTICAL ENGINEERING
显示于类别:	[Department of Optics and Photonics] journal & Dissertation

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