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Proceedings Paper

A laser pumping double-light-source module with photon-recycling
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Paper Abstract

We proposed a novel structure to perform photon recycling for a double-light-source illumination system pumped by a laser. In the design, two kinds of phosphor are located at the two focus of an elliptical reflective surface separately, after the phosphor on the first focus pumped by laser, the backward scattering light will refocus at the other phosphor layer at the second focus. The absorption spectrum of the second phosphor should fit that of the emission light by the first phosphor. When the emission spectrum covers red light, the whole system is a double-light-source module.

Paper Details

Date Published: 5 September 2019
PDF: 6 pages
Proc. SPIE 11104, Current Developments in Lens Design and Optical Engineering XX, 111040K (5 September 2019); doi: 10.1117/12.2529735
Show Author Affiliations
Shih-Kang Lin, National Central Univ. (Taiwan)
Yu-Wen Su, National Central Univ. (Taiwan)
Xuan-Hao Lee, National Central Univ. (Taiwan)
Yeh-Wei Yu, Feng Chia Univ. (Taiwan)
Tsung-Hsun Yang, National Central Univ. (Taiwan)
Ching-Cherng Sun, National Central Univ. (Taiwan)

Published in SPIE Proceedings Vol. 11104:
Current Developments in Lens Design and Optical Engineering XX
R. Barry Johnson; Virendra N. Mahajan; Simon Thibault, Editor(s)

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