Ling-li HEI, Shu-xing LI, Xuan CHENG, et al. Effect of Laser Spot Regulation on Evaluation of Laser Phosphors. [J]. Chinese Journal of Luminescence 42(10):1646-1652(2021)
DOI:
Ling-li HEI, Shu-xing LI, Xuan CHENG, et al. Effect of Laser Spot Regulation on Evaluation of Laser Phosphors. [J]. Chinese Journal of Luminescence 42(10):1646-1652(2021) DOI: 10.37188/CJL.20210132.
Effect of Laser Spot Regulation on Evaluation of Laser Phosphors增强出版
The newly-emerging laser lighting technology shows great advantages of high brightness, high luminous flux and long lifetime, which therefore attracts more attention for use in high-beam headlamps, cinema projectors and endoscopy. In this technology, the size of laser spots has a large effect on the proper evaluation of laser phosphors, but it is usually neglected and lack of deep investigations. In this paper, we conducted a survey on the influence of the spot size on the maximum output luminous flux, luminous saturation threshold, color temperature, color coordinates, and light uniformity of Y,3,Al,5,O,12,∶Ce,3+,-Al,2,O,3,(YAG∶Ce-Al,2,O,3,) phosphor films for laser lighting. It reveals that the laser spot size does have a vital effect on optical properties of laser phosphors, and needs to be carefully considered. This work provides a general guideline for standardizing the performance evaluation of laser phosphors.
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