Invention Grant
- Patent Title: Light-emitting device
- Patent Title (中): 发光装置
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Application No.: US12143382Application Date: 2008-06-20
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Publication No.: US07884538B2Publication Date: 2011-02-08
- 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 is provided, which includes a package having a first portion and a second portion surrounding it, a semiconductor light-emitting element mounted on the first portion and emitting a light having an emission peak in a near-ultraviolet region, a transparent resin layer covering the semiconductor light-emitting element and contacted with the package, and a laminated body formed on the transparent resin layer with end faces of the laminated body being contacted with the second portion. The transparent resin layer has an arch-like outer profile perpendicular cross section. The laminated body has an arch-like outer profile in perpendicular cross section and comprises a red fluorescent layer, a yellow fluorescent layer, a green fluorescent layer and a blue fluorescent layer laminated in the mentioned order. The yellow fluorescent layer has a top portion which is made larger in thickness than that of the end face portions thereof.
Public/Granted literature
- US20090058256A1 LIGHT-EMITTING DEVICE Public/Granted day:2009-03-05
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