Innovative coupler design based on a tapered light pipe with lens
| Autor: | Chia-Min Lin, Kai-Cyuan Jhan, Chung-Wei Wang, Allen Jong-Woei Whang, Chang Cheng-Ming, Chou Chun-Han, Shih-Min Chao |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Materials science
business.industry Etendue Viewing angle Solar energy Atomic and Molecular Physics and Optics Collimated light Electronic Optical and Magnetic Materials law.invention Lens (optics) Light pipe Optics law Optoelectronics Light beam Electrical and Electronic Engineering business Nonimaging optics |
| Zdroj: | Chinese Optics Letters. 11:122201-122204 |
| ISSN: | 1671-7694 |
| DOI: | 10.3788/col201311.122201 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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