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Composite fluorescent ceramic for laser illumination and preparation method thereof
The invention discloses composite fluorescent ceramic for laser illumination and a preparation method of the composite fluorescent ceramic. The composite fluorescent ceramic is prepared by co-firing YAG: Ce fluorescent ceramic and YAG transparent ceramic, the surface of the YAG: Ce fluorescent ceramic is provided with a micro convex lens array structure, the YAG: Ce fluorescent ceramic is used for improving the emergent angle of photons and obtaining collimated forward light, and the YAG transparent ceramic is used for collecting heat generated by a fluorescent layer and transferring the heat. The YAG transparent ceramic and the YAG: Ce fluorescent ceramic are tightly bonded together by adopting a co-firing scheme, and the prepared composite ceramic realizes high-brightness white light emission under the excitation of a blue light LD chip with the wavelength of 455nm, and can bear the excitation power density of 65W/mm < 2 >-75W/mm < 2 >, the luminous efficiency of 220-260lm/W and the light beam divergence angle of 90-110 degrees.
本发明公开了一种激光照明用复合荧光陶瓷及其制备方法。所述复合荧光陶瓷由表面具有微凸透镜阵列结构的YAG:Ce荧光陶瓷和YAG透明陶瓷共烧制得，所述YAG:Ce荧光陶瓷用于改善光子的出射角度，获得准直的前向光，所述YAG透明陶瓷用于收集荧光层产生的热量，并进行热量的传递。本发明采用共烧方案将YAG透明陶瓷与YAG:Ce荧光陶瓷紧密粘合在一起，制得的复合陶瓷在波长为455nm蓝光LD芯片激发下，实现高亮白光发射，可承受激发功率密度为65W/mm2～75W/mm2，发光效率220～260lm/W，光束发散角为90°～110°。
Composite fluorescent ceramic for laser illumination and preparation method thereof
The invention discloses composite fluorescent ceramic for laser illumination and a preparation method of the composite fluorescent ceramic. The composite fluorescent ceramic is prepared by co-firing YAG: Ce fluorescent ceramic and YAG transparent ceramic, the surface of the YAG: Ce fluorescent ceramic is provided with a micro convex lens array structure, the YAG: Ce fluorescent ceramic is used for improving the emergent angle of photons and obtaining collimated forward light, and the YAG transparent ceramic is used for collecting heat generated by a fluorescent layer and transferring the heat. The YAG transparent ceramic and the YAG: Ce fluorescent ceramic are tightly bonded together by adopting a co-firing scheme, and the prepared composite ceramic realizes high-brightness white light emission under the excitation of a blue light LD chip with the wavelength of 455nm, and can bear the excitation power density of 65W/mm < 2 >-75W/mm < 2 >, the luminous efficiency of 220-260lm/W and the light beam divergence angle of 90-110 degrees.
本发明公开了一种激光照明用复合荧光陶瓷及其制备方法。所述复合荧光陶瓷由表面具有微凸透镜阵列结构的YAG:Ce荧光陶瓷和YAG透明陶瓷共烧制得，所述YAG:Ce荧光陶瓷用于改善光子的出射角度，获得准直的前向光，所述YAG透明陶瓷用于收集荧光层产生的热量，并进行热量的传递。本发明采用共烧方案将YAG透明陶瓷与YAG:Ce荧光陶瓷紧密粘合在一起，制得的复合陶瓷在波长为455nm蓝光LD芯片激发下，实现高亮白光发射，可承受激发功率密度为65W/mm2～75W/mm2，发光效率220～260lm/W，光束发散角为90°～110°。
Composite fluorescent ceramic for laser illumination and preparation method thereof
一种激光照明用复合荧光陶瓷及其制备方法
ZHANG LE (author) / WANG JINHUA (author) / LIU XUANCHU (author) / CHEN GUANNAN (author) / WANG PENG (author) / SHI CHUANXIN (author) / KANG JIAN (author) / CHEN HAO (author)
2024-12-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Lens type fluorescent composite ceramic for laser illumination and preparation method thereof
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