Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fluorescent ceramic with core-spun structure and preparation method of fluorescent ceramic
The invention provides fluorescent ceramic with a core-spun structure and a preparation method of the fluorescent ceramic with the core-spun structure. A cladding layer of the fluorescent ceramic with the core-spun structure is semitransparent ceramic; the core layer of the fluorescent ceramic with the core-spun structure is fluorescent ceramic, the chemical composition of the fluorescent ceramic is [Y (1-x-a-b-c) CexLuaGdbTbc] 3 [Al (1-d) Gad] 5O12, 0.0001 < = x < = 0.03, 0 < = a < = 0.9999, 0 < = b < = 0.9999, 0 < = c < = 0.9999, 0 < = d < = 1, and 0 < = a + b + c < = 0.9999, and the crystal structure of the fluorescent ceramic with the core-spun structure is the same as that of yttrium aluminum garnet. In the invention, the cladding layer of the fluorescent ceramic with the core-spun structure is semitransparent ceramic, and the core layer of the fluorescent ceramic with the core-spun structure is fluorescent ceramic. Due to the refractive index difference between the core layer and the cladding layer, large-angle scattered light can change the propagation path through reflection or even total reflection, the spot diameter of emergent fluorescent light is reduced, and the collecting effect of the lens on emergent light is improved. And on the other hand, because the incident laser is limited in the core layer area, the light conversion efficiency of the incident laser is also increased. The reduction of the diameter of the fluorescent light spot and the improvement of the light conversion efficiency are both beneficial for increasing the brightness of the laser illumination light source.
本发明提供了一种包芯结构的荧光陶瓷及其制备方法，所述包芯结构荧光陶瓷的包层为半透明陶瓷；所述包芯结构荧光陶瓷的芯层为荧光陶瓷，其化学组成为[Y(1‑x‑a‑b‑c)CexLuaGdbTbc]3[Al(1‑d)Gad]5O12，其中0.0001≤x≤0.03，0≤a≤0.9999，0≤b≤0.9999，0≤c≤0.9999，0≤d≤1，且0≤a+b+c≤0.9999，其晶体结构与钇铝石榴石相同。本发明中，所述包芯结构荧光陶瓷的包层为半透明陶瓷、芯层为荧光陶瓷。芯层与包层之间的折射率差异可以将大角度的散射光通过反射甚至是全反射使其改变传播路径，减小了出射荧光光斑直径，提高透镜对出射光的收集效果。另一方面，由于入射激光被限制在芯层区域内，也增大了入射激光的光转换效率。荧光光斑直径的减小和光转换效率的提高均有助于增大激光照明光源的亮度。
Fluorescent ceramic with core-spun structure and preparation method of fluorescent ceramic
The invention provides fluorescent ceramic with a core-spun structure and a preparation method of the fluorescent ceramic with the core-spun structure. A cladding layer of the fluorescent ceramic with the core-spun structure is semitransparent ceramic; the core layer of the fluorescent ceramic with the core-spun structure is fluorescent ceramic, the chemical composition of the fluorescent ceramic is [Y (1-x-a-b-c) CexLuaGdbTbc] 3 [Al (1-d) Gad] 5O12, 0.0001 < = x < = 0.03, 0 < = a < = 0.9999, 0 < = b < = 0.9999, 0 < = c < = 0.9999, 0 < = d < = 1, and 0 < = a + b + c < = 0.9999, and the crystal structure of the fluorescent ceramic with the core-spun structure is the same as that of yttrium aluminum garnet. In the invention, the cladding layer of the fluorescent ceramic with the core-spun structure is semitransparent ceramic, and the core layer of the fluorescent ceramic with the core-spun structure is fluorescent ceramic. Due to the refractive index difference between the core layer and the cladding layer, large-angle scattered light can change the propagation path through reflection or even total reflection, the spot diameter of emergent fluorescent light is reduced, and the collecting effect of the lens on emergent light is improved. And on the other hand, because the incident laser is limited in the core layer area, the light conversion efficiency of the incident laser is also increased. The reduction of the diameter of the fluorescent light spot and the improvement of the light conversion efficiency are both beneficial for increasing the brightness of the laser illumination light source.
本发明提供了一种包芯结构的荧光陶瓷及其制备方法，所述包芯结构荧光陶瓷的包层为半透明陶瓷；所述包芯结构荧光陶瓷的芯层为荧光陶瓷，其化学组成为[Y(1‑x‑a‑b‑c)CexLuaGdbTbc]3[Al(1‑d)Gad]5O12，其中0.0001≤x≤0.03，0≤a≤0.9999，0≤b≤0.9999，0≤c≤0.9999，0≤d≤1，且0≤a+b+c≤0.9999，其晶体结构与钇铝石榴石相同。本发明中，所述包芯结构荧光陶瓷的包层为半透明陶瓷、芯层为荧光陶瓷。芯层与包层之间的折射率差异可以将大角度的散射光通过反射甚至是全反射使其改变传播路径，减小了出射荧光光斑直径，提高透镜对出射光的收集效果。另一方面，由于入射激光被限制在芯层区域内，也增大了入射激光的光转换效率。荧光光斑直径的减小和光转换效率的提高均有助于增大激光照明光源的亮度。
Fluorescent ceramic with core-spun structure and preparation method of fluorescent ceramic
一种包芯结构的荧光陶瓷及其制备方法
XIE RONGJUN (Autor:in) / LAI YIFENG (Autor:in) / LI SHUXING (Autor:in)
12.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
F21V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF
,
Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen
/
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
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