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17 September 2018 A novel laser headlight module (Conference Presentation)
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Abstract
We report and demonstrate the feasibility of adapting glass as a phosphor-converted layer in laser headlight module, instead of conventional doped silicone that can potentially provide higher reliability and better performance for advanced laser headlight module. A laser headlight module (HLM) consists of blue a high-power laser array, a color phosphor, and an optical micro-lens system. The color phosphor is a key component in the HLM which consists of glass-based yellow phosphor-converted layer. The conversion layer of the yellow Ce:YAG phosphor is bonded on an aluminum substrate. A blue high-power laser array is used to excite the color phosphor and then release yellow light. Then, the combinations of blue and yellow light become white-laser light for use in the HLM. In this study, the fabrication of HLM with the glass-based yellow phosphor-converted layers is presented. The optical performance of the HLM including lumen, lumen efficiency, chromaticity, and transmission is detailed discussion. This study demonstrates the adapting glass as a phosphor-converted color phosphor in the HLMs that provide high-reliability and better performance for use in the new-generation laser headlight module.
Conference Presentation
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Yung-Peng Chang, Jin-Kai Chang, Shih-Hsin Chang, Hsin-An Chen, Chun-Nien Liu, Han Pin, and Wood-Hi Cheng "A novel laser headlight module (Conference Presentation)", Proc. SPIE 10745, Current Developments in Lens Design and Optical Engineering XIX, 107450Q (17 September 2018); https://doi.org/10.1117/12.2318918
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