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5 September 2019 A laser pumping double-light-source module with photon-recycling
Shih-Kang Lin, Yu-Wen Su, Xuan-Hao Lee, Yeh-Wei Yu, Tsung-Hsun Yang, Ching-Cherng Sun
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Proceedings Volume 11104, Current Developments in Lens Design and Optical Engineering XX; 111040K (2019) https://doi.org/10.1117/12.2529735
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States
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.
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Shih-Kang Lin, Yu-Wen Su, Xuan-Hao Lee, Yeh-Wei Yu, Tsung-Hsun Yang, and Ching-Cherng Sun "A laser pumping double-light-source module with photon-recycling", Proc. SPIE 11104, Current Developments in Lens Design and Optical Engineering XX, 111040K (5 September 2019); https://doi.org/10.1117/12.2529735
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KEYWORDS
Infrared radiation
Laser scattering
Light scattering
Absorption
Laser development
Reflectivity
Scattering
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