Invention Grant
- Patent Title: Light-emitting device
- Patent Title (中): 发光装置
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Application No.: US12985955Application Date: 2011-01-06
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Publication No.: US08237350B2Publication Date: 2012-08-07
- Inventor: Iwao Mitsuishi , Shinya Nunoue , Yasushi Hattori
- Applicant: Iwao Mitsuishi , Shinya Nunoue , Yasushi Hattori
- Applicant Address: JP Tokyo
- Assignee: Kabushiki Kaisha Toshiba
- Current Assignee: Kabushiki Kaisha Toshiba
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2007-225887 20070831
- Main IPC: H01J1/62
- IPC: H01J1/62

Abstract:
A light-emitting device includes a package having, on a surface thereof, a first portion surrounded by a second portion; a semiconductor blue color light-emitting element mounted on the first portion; a first transparent resin layer covering the semiconductor blue color light-emitting element and contacted with the first and second portions. The first transparent resin layer in cross section has an arch-like outer profile. A laminated body having in cross section an arch-like profile is formed on the first transparent resin layer with end faces of the laminated body being contacted with the second portion, and includes in order a red fluorescent layer, a yellow fluorescent layer, a second transparent resin layer and a green fluorescent layer, the second transparent resin layer having a center portion disposed between end face portions, the center portion having a larger thickness than thicknesses of the end face portions.
Public/Granted literature
- US20110101851A1 LIGHT-EMITTING DEVICE Public/Granted day:2011-05-05
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