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Composite fluorescent ceramic for high-power LD (laser diode) illumination and preparation method of composite fluorescent ceramic
The invention relates to composite fluorescent ceramic for high-power LD (laser diode) illumination and a preparation method thereof. The composite fluorescent ceramic is composed of a red fluorescent film, green fluorescent ceramic, transparent oxide ceramic and a concave heat-conducting structure layer from top to bottom, the preparation method comprises the following steps: preparing mixed raw material powder corresponding to a red fluorescent film, green fluorescent ceramic and transparent oxide ceramic, carrying out glass melting, quenching and grinding on the mixed raw material powder of the red fluorescent film to obtain precursor fluorescent glass powder, and further obtaining fluorescent glass colloid; preparing the mixed raw material powder corresponding to the green fluorescent ceramic and the transparent oxide ceramic into heat-conducting layer composite ceramic; and coating the fluorescent glass colloid on the surface of the heat-conducting layer composite ceramic, crystallizing, and embedding into the concave heat-conducting structure layer to obtain the composite fluorescent ceramic. According to the process, thermal quenching can be effectively reduced, and the compactness and the structural stability of the ceramic can be effectively controlled; the obtained composite fluorescent ceramic has the characteristics of high heat conductivity coefficient, high color rendering index and high luminous efficiency.
一种高功率LD照明用复合荧光陶瓷及其制备方法，复合荧光陶瓷由自上而下分别为红色荧光薄膜、绿色荧光陶瓷、透明氧化物陶瓷、凹形导热结构层组成；制备方法：制备红色荧光薄膜、绿色荧光陶瓷、透明氧化物陶瓷所对应的混合原料粉体，将红色荧光薄膜的混合原料粉体经玻璃熔融、淬火、研磨后得到前驱体荧光玻璃粉末，进一步得到荧光玻璃胶体；将绿色荧光陶瓷、透明氧化物陶瓷所对应的混合原料粉体制备成导热层复合陶瓷；将荧光玻璃胶体涂覆于导热层复合陶瓷表面，析晶后嵌入凹形导热结构层中得到复合荧光陶瓷。该工艺能有效降低热猝灭，还能有效控制陶瓷的致密性和结构稳定性；所得到的复合荧光陶瓷具有高导热系数、高显色指数、高发光效率的特点。
Composite fluorescent ceramic for high-power LD (laser diode) illumination and preparation method of composite fluorescent ceramic
The invention relates to composite fluorescent ceramic for high-power LD (laser diode) illumination and a preparation method thereof. The composite fluorescent ceramic is composed of a red fluorescent film, green fluorescent ceramic, transparent oxide ceramic and a concave heat-conducting structure layer from top to bottom, the preparation method comprises the following steps: preparing mixed raw material powder corresponding to a red fluorescent film, green fluorescent ceramic and transparent oxide ceramic, carrying out glass melting, quenching and grinding on the mixed raw material powder of the red fluorescent film to obtain precursor fluorescent glass powder, and further obtaining fluorescent glass colloid; preparing the mixed raw material powder corresponding to the green fluorescent ceramic and the transparent oxide ceramic into heat-conducting layer composite ceramic; and coating the fluorescent glass colloid on the surface of the heat-conducting layer composite ceramic, crystallizing, and embedding into the concave heat-conducting structure layer to obtain the composite fluorescent ceramic. According to the process, thermal quenching can be effectively reduced, and the compactness and the structural stability of the ceramic can be effectively controlled; the obtained composite fluorescent ceramic has the characteristics of high heat conductivity coefficient, high color rendering index and high luminous efficiency.
一种高功率LD照明用复合荧光陶瓷及其制备方法，复合荧光陶瓷由自上而下分别为红色荧光薄膜、绿色荧光陶瓷、透明氧化物陶瓷、凹形导热结构层组成；制备方法：制备红色荧光薄膜、绿色荧光陶瓷、透明氧化物陶瓷所对应的混合原料粉体，将红色荧光薄膜的混合原料粉体经玻璃熔融、淬火、研磨后得到前驱体荧光玻璃粉末，进一步得到荧光玻璃胶体；将绿色荧光陶瓷、透明氧化物陶瓷所对应的混合原料粉体制备成导热层复合陶瓷；将荧光玻璃胶体涂覆于导热层复合陶瓷表面，析晶后嵌入凹形导热结构层中得到复合荧光陶瓷。该工艺能有效降低热猝灭，还能有效控制陶瓷的致密性和结构稳定性；所得到的复合荧光陶瓷具有高导热系数、高显色指数、高发光效率的特点。
Composite fluorescent ceramic for high-power LD (laser diode) illumination and preparation method of composite fluorescent ceramic
一种高功率LD照明用复合荧光陶瓷及其制备方法
ZHOU CHUNMING (author) / CHEN HANG (author) / ZHANG LE (author) / ZHOU TIANYUAN (author) / LI YANBIN (author) / WANG HONGSEN (author) / CHEN XU (author) / LIN SHENGHUI (author) / KANG JIAN (author) / CHEN HAO (author)
2024-03-29
Patent
Electronic Resource
Chinese
IPC:
F21V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF
,
Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen
/
C04B
Kalk
,
LIME
/
F21Y
Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend die Form oder die Art der Lichtquellen oder die Farbe des emittierten Lichts
,
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
| European Patent Office | 2024
| European Patent Office | 2023
| European Patent Office | 2024
Composite fluorescent ceramic for laser illumination and preparation method thereof
| European Patent Office | 2024
| European Patent Office | 2024