高流明密度激光照明用光转换材料

Light-Conversion Materials for High-Lumen Density Laser Illumination

激光白光光源具有亮度高、响应速度快和传输距离远等优点,在汽车照明、显示、工业照明及高铁舰船等远程照明领域获得广泛应用。然而,随着流明密度不断增加,对光转换材料提出了更高的要求。本文对激光照明用粉体、单晶、玻璃、陶瓷等光转换材料的国内外研究进展进行了综述;简要分析了当前光转换材料温度猝灭现象的主要原因;提出了实现高流明密度激光照明应用所需要解决的关键问题,最后对其发展趋势进行了展望。

Laser-based white-light source has the advantages of high brightness, fast response and far transmission distance. It is widely used in automotive lighting, display, industrial lighting, and remote lighting fields such as high-speed rail and ships. However, with the high lumen density of laser illumination source, higher requirements are proposed for the light-conversion materials. In this review, the research progress of light-converting materials such as powder, single crystal, glass and ceramics for laser illumination in recent years is reviewed. Then, the main causes of temperature quenching of current light-conversion materials are briefly analyzed. Finally, several key problems to be urgently solved are highlighted for the application of high-lumen density laser illumination, and its development trend is prospected.