標題: Luminescence material characterizations on laser-phosphor lighting techniques
作者: Yeh, Chih-Ting
Chou, Yen-, I
Yang, Kai-Shing
Wu, Shih-Kuo
Wang, Chi-Chuang
機械工程學系
Department of Mechanical Engineering
公開日期: 4-三月-2019
摘要: This study examines three different types of laser carriers, including the phosphors in silicone (PiS), the phosphor in glass (PiG), and alumina-based ceramic binders (CP), for laser-phosphor lighting characterizations via a laser projector light source module. The thermal influence of heat spreading on these phosphor materials and their luminescence performance is also investigated. The conversion efficiency of PiS, PiG and CP was found to be 29.7%, 34.6% and 31.8%, with their corresponding maximum laser power operations of 3.9 W, 7.9 W, and 17.2 W, respectively. This work further correlates the maximum laser operation power with the thermal conductivity of luminescence material. From the optical engine perspective, it was found that CP exhibits the superior thermal conductivity of 17.0 W/m.K for slight hot-spot IR observation and higher laser power operation. This work finally delivers a CP device for 50.2W maximum laser operation with the operating temperature below 100 degrees C. The simulation is also carried out in order to examine spreading resistance's influence, when subject to convective boundary condition. CP's response sensitivity to heat transfer coefficient was found to be rather small. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
URI: http://dx.doi.org/10.1364/OE.27.007226
http://hdl.handle.net/11536/148944
ISSN: 1094-4087
DOI: 10.1364/OE.27.007226
期刊: OPTICS EXPRESS
Volume: 27
起始頁: 7226
結束頁: 7236
顯示於類別:期刊論文