US2016334077A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016334077-A1 |
| Application number | US-201615152737-A |
| Country | US |
| Kind code | A1 |
| Filing date | May 12, 2016 |
| Priority date | May 15, 2015 |
| Publication date | Nov 17, 2016 |
| Grant date | — |
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A method for manufacturing light distribution members includes: preparing a joined body in which a plurality of transmissive plates are joined with a light shield part being interposed between adjacent ones of the transmissive plates; fixing a light-shielding frame to the joined body so as to surround an outer periphery of the joined body as seen from one direction; and cutting the joined body and the light-shielding frame perpendicularly to a surface of the joined body to which the light-shielding frame is fixed, thereby obtaining a plurality of light distribution members each having a plurality of transmissive pieces.
Opening claim text (preview).
What is claimed is: 1 . A method for manufacturing a plurality of light distribution members, comprising: preparing a joined body in which a plurality of transmissive plates are joined with a light shield part being interposed between adjacent ones of the transmissive plates; fixing a light-shielding frame to the joined body so as to surround an outer periphery of the joined body as seen from one direction; and cutting the joined body and the light-shielding frame perpendicularly to a surface of the joined body to which the light-shielding frame is fixed thereby obtaining the plurality of the light distribution members each having a plurality of transmissive pieces. 2 . The method for manufacturing a plurality of light distribution members according to claim 1 , wherein in the step of preparing the joined body, the transmissive plates are joined in a matrix form with the light shield part being interposed between the adjacent ones of the transmissive plates. 3 . The method for manufacturing a plurality of light distribution members according to claim 1 , wherein each of the transmissive plates contain a phosphor. 4 . The method for manufacturing a plurality of light distribution members according to claim 2 , wherein each of the transmissive plates contain a phosphor. 5 . The method for manufacturing a plurality of light distribution members according to claim 1 , wherein in the step of preparing the joined body, a first light-shielding film which has at least one of a single layer composed of metal and a multilayer film composed of metal and/or dielectric is formed on at least one surface of each of the transmissive plates respectively, and the transmissive plates are joined together so that the first light-shielding films are opposite each other. 6 . The method for manufacturing a plurality of light distribution members according to claim 4 , wherein, in the step of preparing the joined body, a first light-shielding film which has at least one of a single layer composed of metal and a multilayer film composed of metal and/or dielectric is formed on at least one surface of each of the transmissive plates respectively, and the plurality of transmissive plates are joined together so that the first light-shielding films are opposite each other. 7 . The method for manufacturing a plurality of light distribution members according to claim 5 , wherein in the step of preparing the joined body, the first light-shielding film includes the multilayer film composed of dielectric. 8 . The method for manufacturing a plurality of light distributions member according to claim 5 , wherein in the step of preparing the joined body, the first light-shielding film includes the multilayer film composed of dielectric and metal film, and the transmissive plates are joined together by directly joining with metal layers of the first light-shielding films being opposite each other. 9 . The method for manufacturing a plurality of light distribution members according to claim 1 , wherein the light-shielding frame is made of ceramic. 10 . The method for manufacturing a plurality of light distribution members according to claim 6 , wherein the light-shielding frame is made of ceramic. 11 . A method for manufacturing a light emitting device, comprising: manufacturing the light distribution members by the method according to claim 1 ; and providing a plurality of light emitting elements that are spaced apart so that light from one of the light emitting elements is incident on at least one of the transmissive pieces of one of the light distribution members. 12 . A method for manufacturing a light emitting device, comprising: manufacturing the light distribution members by the method according to claim 10 ; and providing a plurality of light emitting elements that are spaced apart so that light from one of the light emitting elements is incident on at least one of the transmissive pieces of one of the light distribution members. 13 . The method for manufacturing a light emitting device according to claim 12 , further comprising providing a reflective member that is made of a different material from a material of the light-shielding frame, so as to come into contact with the light shield part between the light emitting elements after the providing of the plurality of the light emitting elements. 14 . A light distribution member comprising: a joined body including a plurality of transmissive pieces joined together with a light shield part being interposed between adjacent ones of the transmissive pieces; and a light-shielding frame provided so as to surround an outer periphery of the joined body as seen from one direction. 15 . The light distribution member according to claim 14 , wherein the transmissive pieces are joined in a matrix form with the light shield part being interposed between adjacent ones of the transmissive pieces. 16 . The light distribution member according to claim 15 , wherein each of the transmissive pieces contain a phosphor. 17 . The light distribution member according to claim 16 , wherein the light-shielding frame is made of ceramic, and substantially no organic substance is contained inside the light-shielding frame. 18 . The light distribution member according to claim 17 , wherein a width of the light-shielding frame, as seen from above, is within a range of from 50 to 1000 μm. 19 . A light emitting device comprising: the light distribution member according to claim 17 ; a plurality of light emitting elements that are arranged on a main surface of the light distribution member, the main surface being a surface on which the light-shielding frame is not provided, and that are disposed so that light from one of the light emitting elements is incident on one or more of the transmissive pieces of the light distribution member; and a reflective member that is made of a different material from a material of the light-shielding frame and is provided so as to come into contact with the light shield part between the light emitting elements. 20 . A light emitting device comprising: the light distribution member according to claim 17 ; and a semiconductor laser element disposed spaced apart from the light distribution member and disposed such that light from the semiconductor laser element is incident on one of a pair of main surfaces of the light distribution member on which the light-shielding frame is not provided.
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