Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
OPTICAL WAVELENGTH CONVERSION MEMBER AND LIGHT-EMITTING DEVICE
PROBLEM TO BE SOLVED: To provide an optical wavelength conversion member and a light-emitting device achieving both of high fluorescence intensity and high color homogeneity.SOLUTION: A light-emitting device 1 includes a container 3, a light-emitting element 5 and an optical wavelength conversion member 9. The optical wavelength conversion member 9 is made of a ceramic sintered body having a polycrystalline structure essentially comprising a polycrystalline transparent ceramic material having optical anisotropy (such as an alumina crystal) and a fluorescent ceramic material that is a polycrystalline ceramic material having fluorescence (such as an ABO:Ce crystal). The ceramic sintered body has a surface roughness (Ra) of 0.05 to 10 μm on a light incident surface 9a where light enters.SELECTED DRAWING: Figure 1
【課題】高い蛍光強度と高い色均質性とを両立できる光波長変換部材及び発光装置を提供すること。【解決手段】発光装置１は、容器３と発光素子５と光波長変換部材９とを備えている。光波長変換部材９は、光学的異方性を有する多結晶透明セラミックス（例えばアルミナ結晶）と、蛍光性を有する多結晶セラミックスである蛍光セラミックス（例えばＡ３Ｂ５Ｏ１２：Ｃｅ結晶）と、を主成分とする多結晶組織を有するセラミックス焼結体からなる。このセラミックス焼結体は、光が入射する光入射面９ａにおける表面粗さ（Ｒａ）が、０．０５〜１０μｍである。【選択図】図１
OPTICAL WAVELENGTH CONVERSION MEMBER AND LIGHT-EMITTING DEVICE
PROBLEM TO BE SOLVED: To provide an optical wavelength conversion member and a light-emitting device achieving both of high fluorescence intensity and high color homogeneity.SOLUTION: A light-emitting device 1 includes a container 3, a light-emitting element 5 and an optical wavelength conversion member 9. The optical wavelength conversion member 9 is made of a ceramic sintered body having a polycrystalline structure essentially comprising a polycrystalline transparent ceramic material having optical anisotropy (such as an alumina crystal) and a fluorescent ceramic material that is a polycrystalline ceramic material having fluorescence (such as an ABO:Ce crystal). The ceramic sintered body has a surface roughness (Ra) of 0.05 to 10 μm on a light incident surface 9a where light enters.SELECTED DRAWING: Figure 1
【課題】高い蛍光強度と高い色均質性とを両立できる光波長変換部材及び発光装置を提供すること。【解決手段】発光装置１は、容器３と発光素子５と光波長変換部材９とを備えている。光波長変換部材９は、光学的異方性を有する多結晶透明セラミックス（例えばアルミナ結晶）と、蛍光性を有する多結晶セラミックスである蛍光セラミックス（例えばＡ３Ｂ５Ｏ１２：Ｃｅ結晶）と、を主成分とする多結晶組織を有するセラミックス焼結体からなる。このセラミックス焼結体は、光が入射する光入射面９ａにおける表面粗さ（Ｒａ）が、０．０５〜１０μｍである。【選択図】図１
OPTICAL WAVELENGTH CONVERSION MEMBER AND LIGHT-EMITTING DEVICE
光波長変換部材及び発光装置
KATSU YUSUKE (Autor:in) / MOGI JUN (Autor:in) / TAKAHISA SHOHEI (Autor:in)
10.05.2018
Patent
Elektronische Ressource
Japanisch
IPC:
G02B
Optische Elemente, Systeme oder Geräte
,
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
/
C04B
Kalk
,
LIME
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
/
F21V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF
,
Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen
/
H01L
Halbleiterbauelemente
,
SEMICONDUCTOR DEVICES
/
H01S
Vorrichtungen, die stimulierte Emission verwenden
,
DEVICES USING STIMULATED EMISSION
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