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WAVELENGTH CONVERSION MEMBER
To provide a wavelength conversion member such that a range in which light is guided out on a light guide-out surface is suppressed from expanding.SOLUTION: According to one embodiment, there is provided a wavelength conversion member 1 which is formed of a sintered body of a phosphor, where an average size of pores on an arbitrary cut surface is 0.28 to 0.98 μm, an area ratio of the pores on the arbitrary cut surface to the whole is 0.04 to 2.7%, and an average size of grains of the phosphor on the arbitrary cut surface is 1 to 3 μm.SELECTED DRAWING: Figure 13
【課題】光取出面における光の取り出される範囲の拡がりが抑えられた波長変換部材を提供する。【解決手段】一実施の形態として、蛍光体の焼結体からなり、任意の切断面における気孔の平均径が0.28μm以上、0.98μm以下の範囲内にあり、任意の切断面における気孔の全体に対する面積比率が0.04%以上、2.7%以下の範囲内にあり、任意の切断面における前記蛍光体のグレインの平均径が、1μm以上、3μm以下の範囲内にある、波長変換部材1を提供する。【選択図】図13
WAVELENGTH CONVERSION MEMBER
To provide a wavelength conversion member such that a range in which light is guided out on a light guide-out surface is suppressed from expanding.SOLUTION: According to one embodiment, there is provided a wavelength conversion member 1 which is formed of a sintered body of a phosphor, where an average size of pores on an arbitrary cut surface is 0.28 to 0.98 μm, an area ratio of the pores on the arbitrary cut surface to the whole is 0.04 to 2.7%, and an average size of grains of the phosphor on the arbitrary cut surface is 1 to 3 μm.SELECTED DRAWING: Figure 13
【課題】光取出面における光の取り出される範囲の拡がりが抑えられた波長変換部材を提供する。【解決手段】一実施の形態として、蛍光体の焼結体からなり、任意の切断面における気孔の平均径が0.28μm以上、0.98μm以下の範囲内にあり、任意の切断面における気孔の全体に対する面積比率が0.04%以上、2.7%以下の範囲内にあり、任意の切断面における前記蛍光体のグレインの平均径が、1μm以上、3μm以下の範囲内にある、波長変換部材1を提供する。【選択図】図13
WAVELENGTH CONVERSION MEMBER
波長変換部材
ARAI YUSUKE (Autor:in) / SAWANO HIROYUKI (Autor:in) / INOMATA DAISUKE (Autor:in) / YAMASHITA YOSHIHIRO (Autor:in) / SUZUKI RIKIYA (Autor:in) / SHIMAMURA KIYOSHI (Autor:in) / GARCIA VILLORA ENCARNACION ANTONIA (Autor:in)
25.02.2021
Patent
Elektronische Ressource
Japanisch
IPC:
G02B
Optische Elemente, Systeme oder Geräte
,
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
/
C09K
Materialien für Anwendungen, soweit nicht anderweitig vorgesehen
,
MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR
WAVELENGTH CONVERSION MEMBER MANUFACTURING METHOD AND WAVELENGTH CONVERSION MEMBER
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