Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
PROBLEM TO BE SOLVED: To provide a wavelength conversion sintered body capable of suppressing color unevenness of emitted light which is subjected to wavelength conversion, having excellent light emission efficiency, and suppressing reduction of mechanical strength.SOLUTION: A wavelength conversion sintered body 1 is a plate-state body configured so that: one main surface is a light incidence plane 2, and a main surface opposite to the incidence plane 2 is an emission plane 3. The plate-state body is formed of a sintered body whose porosity is 0.1% or lower, comprising fluorescent material particles containing an activator and light transmissive material particles, the incidence plane 2 and the emission plane 3 are sintered planes in which the fluorescent material particles and light transmissive material particles are exposed in a non-processed state, in which a center line surface roughness Ra of ten-point average at 4 mm of measurement length is 0.1 μm or higher and 0.5 μm or lower, and a center line surface roughness Ra1 of twenty-point average at 1 μm of measurement length of the fluorescent material particles exposed to the surface is 0.2 nm or higher and 0.5 nm or lower, and a center line surface roughness Ra2 of twenty-point average at 1 μm of measurement length of the light transmissive material particles exposed to the surface is 0.3 nm or higher and 0.7 nm or lower.SELECTED DRAWING: Figure 1
【課題】波長変換した出射光の色ムラを抑制することができ、かつ優れた発光効率を有し、機械的強度の低下が抑制された波長変換焼成体を提供する。【解決手段】波長変換焼成体１は、一の主面が光の入射面２であり、前記入射面２と反対側の主面が光の出射面３である板状体であり、前記板状体は、賦活剤を含有する蛍光性材料粒子及び透光性材料粒子からなる気孔率が０．１％以下の焼成体からなり、前記入射面及び前記出射面は、前記蛍光性材料粒子及び透光性材料粒子が非加工で露出する焼成面で、測定長４ｍｍでの１０点平均の中心線表面粗さＲａが０．１μｍ以上０．５μｍ以下、前記表面に露出する蛍光性材料粒子の測定長１μｍでの２０点平均の中心線表面粗さＲａ１が０．２ｎｍ以上０．５ｎｍ以下、前記表面に露出する透光性材料粒子の測定長１μｍでの２０点平均の中心線表面粗さＲａ２が０．３ｎｍ以上０．７ｎｍ以下に構成されている。【選択図】図１
PROBLEM TO BE SOLVED: To provide a wavelength conversion sintered body capable of suppressing color unevenness of emitted light which is subjected to wavelength conversion, having excellent light emission efficiency, and suppressing reduction of mechanical strength.SOLUTION: A wavelength conversion sintered body 1 is a plate-state body configured so that: one main surface is a light incidence plane 2, and a main surface opposite to the incidence plane 2 is an emission plane 3. The plate-state body is formed of a sintered body whose porosity is 0.1% or lower, comprising fluorescent material particles containing an activator and light transmissive material particles, the incidence plane 2 and the emission plane 3 are sintered planes in which the fluorescent material particles and light transmissive material particles are exposed in a non-processed state, in which a center line surface roughness Ra of ten-point average at 4 mm of measurement length is 0.1 μm or higher and 0.5 μm or lower, and a center line surface roughness Ra1 of twenty-point average at 1 μm of measurement length of the fluorescent material particles exposed to the surface is 0.2 nm or higher and 0.5 nm or lower, and a center line surface roughness Ra2 of twenty-point average at 1 μm of measurement length of the light transmissive material particles exposed to the surface is 0.3 nm or higher and 0.7 nm or lower.SELECTED DRAWING: Figure 1
【課題】波長変換した出射光の色ムラを抑制することができ、かつ優れた発光効率を有し、機械的強度の低下が抑制された波長変換焼成体を提供する。【解決手段】波長変換焼成体１は、一の主面が光の入射面２であり、前記入射面２と反対側の主面が光の出射面３である板状体であり、前記板状体は、賦活剤を含有する蛍光性材料粒子及び透光性材料粒子からなる気孔率が０．１％以下の焼成体からなり、前記入射面及び前記出射面は、前記蛍光性材料粒子及び透光性材料粒子が非加工で露出する焼成面で、測定長４ｍｍでの１０点平均の中心線表面粗さＲａが０．１μｍ以上０．５μｍ以下、前記表面に露出する蛍光性材料粒子の測定長１μｍでの２０点平均の中心線表面粗さＲａ１が０．２ｎｍ以上０．５ｎｍ以下、前記表面に露出する透光性材料粒子の測定長１μｍでの２０点平均の中心線表面粗さＲａ２が０．３ｎｍ以上０．７ｎｍ以下に構成されている。【選択図】図１
WAVELENGTH CONVERSION SINTERED BODY
波長変換焼成体
IRIE MASAKI (Autor:in)
04.08.2016
Patent
Elektronische Ressource
Japanisch
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