发明名称 |
Glass-coated light-emitting element, light-emitting element-attached wiring board, method for producing light-emitting element-attached wiring board, lighting device and projector |
摘要 |
A glass-coated light-emitting element 10 of the invention has a semiconductor light-emitting element 2 having a surface on which no electrode is formed is coated with a glass 1, in which a surface of the glass 1 constitutes a part of a spherical surface broader than a hemispherical surface, the refractive index of the glass 1 at an emission peak wavelength of the semiconductor light-emitting element 2 is 1.7 or more, and the ratio of the diameter of the above-mentioned spherical surface to the maximum diameter of a surface of the semiconductor light-emitting element 2 on which electrodes are formed is 1.8 to 3.5, whereby light emitted from the light-emitting element can be efficiently introduced into a light control unit, and alignment with a lens or a light pipe, which has hitherto been made, becomes unnecessary.
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申请公布号 |
US2009239318(A1) |
申请公布日期 |
2009.09.24 |
申请号 |
US20090385351 |
申请日期 |
2009.04.06 |
申请人 |
ASAHI GLASS COMPANY, LIMITED |
发明人 |
NAKAMURA NOBUHIRO;SEKINE MINORU;MATSUMOTO SYUJI |
分类号 |
H01L33/54;H01L33/56 |
主分类号 |
H01L33/54 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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