Laser-driven white illumination system based on diffuse reflection

Qiannan Luo; Baolin Liu; Xiaoyan Zhang

doi:10.1117/12.2653476

8 December 2022 Laser-driven white illumination system based on diffuse reflection

Qiannan Luo, Baolin Liu, Xiaoyan Zhang

Proceedings Volume 12474, Second International Symposium on Computer Technology and Information Science (ISCTIS 2022); 124742O (2022) https://doi.org/10.1117/12.2653476
Event: Second International Symposium on Computer Technology and Information Science (ISCTIS 2022), 2022, Guilin, China

Abstract

In this paper, a scheme of laser-driven white light illumination based on diffuse reflection is proposed, which can effectively avoid the blue spot phenomenon. The white light with color temperature of 4717 K, lumen of 9.705 lm and color rendering index of 62 can be obtained by using the illumination module with 0.05 W blue laser excitation, which is consistent with the theoretical calculation results. We propose two methods to improve the white light uniformity, namely hook face and concentration gradient.

Citation Download Citation

Qiannan Luo, Baolin Liu, and Xiaoyan Zhang "Laser-driven white illumination system based on diffuse reflection", Proc. SPIE 12474, Second International Symposium on Computer Technology and Information Science (ISCTIS 2022), 124742O (8 December 2022); https://doi.org/10.1117/12.2653476

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