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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Editor: Zhizhan Xu
  • Vol. 11, Iss. 12 — Dec. 1, 2013
  • pp: 122201–122201

Innovative coupler design based on a tapered light pipe with lens

Allen Jong-Woei Whang, Shih-Min Chao, Chun-Han Chou, Chia-Min Lin, Cheng-Ming Chang, Kai-Cyuan Jhan, and Chung-Wei Wang  »View Author Affiliations


Chinese Optics Letters, Vol. 11, Issue 12, pp. 122201-122201 (2013)


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Abstract

Natural light illumination system (NLIS) generates increasing research interest because of the recent trend toward green energy. Various crucial optical components used in a NLIS are analyzed, designed, and fabricated to obtain high efficiency. A large amount of light is loss because of the large viewing angle during light transmission. A tapered light pipe (TLP) is used to collimate light viewing angles. In this letter, we combine a TLP and a traditional lens as a new coupler based on Etendue theory. The original efficiency is only 17.54%, but the efficiency reaches more than 70% when the new coupler is applied.

© 2013 Chinese Optics Letters

OCIS Codes
(220.3630) Optical design and fabrication : Lenses
(220.4610) Optical design and fabrication : Optical fabrication
(220.4298) Optical design and fabrication : Nonimaging optics

ToC Category:
Optical Design and Fabrication

Citation
Allen Jong-Woei Whang, Shih-Min Chao, Chun-Han Chou, Chia-Min Lin, Cheng-Ming Chang, Kai-Cyuan Jhan, and Chung-Wei Wang, "Innovative coupler design based on a tapered light pipe with lens," Chin. Opt. Lett. 11, 122201-122201 (2013)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-11-12-122201


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