Intelligent automotive headlight using laser-excited glass and single crystal phosphor

Yung-Peng Chang; Alan Wang; Kirk Huang; Shih-Hsin Chang; Lion Hsu; Andy Chen; Kenneth Li

doi:10.1117/12.2507361

4 March 2019 Intelligent automotive headlight using laser-excited glass and single crystal phosphor

Yung-Peng Chang, Alan Wang, Kirk Huang, Shih-Hsin Chang, Lion Hsu, Andy Chen, Kenneth Li

Proceedings Volume 10940, Light-Emitting Devices, Materials, and Applications; 109400R (2019) https://doi.org/10.1117/12.2507361
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

Automotive headlight evolved from incandescent, to halogen, to xenon, to LED, and most recently, to laser phosphor lamps with increasing efficiencies and brightness. This paper presents the development of laser phosphor headlights using glass phosphor and single crystal phosphor for efficient and high power operations. Laser diodes are used for pumping the phosphors producing the white light to be projected to the roadway. In addition, various configurations of the laser diodes, which are individual addressable, are to be presented. Together with the used of DLP and LCD imagers, intelligent headlights are developed with the abilities selectively scanning the imagers illuminating the roadway with varying intensities. The design of the systems and the experimental results will be presented.

Conference Presentation

Citation Download Citation

Yung-Peng Chang, Alan Wang, Kirk Huang, Shih-Hsin Chang, Lion Hsu, Andy Chen, and Kenneth Li "Intelligent automotive headlight using laser-excited glass and single crystal phosphor", Proc. SPIE 10940, Light-Emitting Devices, Materials, and Applications, 109400R (4 March 2019); https://doi.org/10.1117/12.2507361

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