Invention Grant
- Patent Title: Light emitting device and method for producing same
- Patent Title (中): 发光元件及其制造方法
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Application No.: US12568123Application Date: 2009-09-28
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Publication No.: US07956536B2Publication Date: 2011-06-07
- Inventor: Tsukasa Maruyama , Masahiro Gotoh , Tetsuya Ikuta
- Applicant: Tsukasa Maruyama , Masahiro Gotoh , Tetsuya Ikuta
- Applicant Address: JP Tokyo
- Assignee: Dowa Electronics Materials Co., Ltd.
- Current Assignee: Dowa Electronics Materials Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Bachman & LaPointe, P.C.
- Priority: JP2006-097083 20060331; JP2007-064776 20070314
- Main IPC: H01J1/62
- IPC: H01J1/62

Abstract:
A light emitting device 10 includes: a lead frame 12a serving as a mounting portion having a cup 13; a light emitting element 14, mounted on the bottom face 13a of the cup, for emitting light having a predetermined peak wavelength; a layer of first phosphor particles 16, absorbed and formed on the light emitting element, for absorbing light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the light emitted from the light emitting element; second phosphor particles 18 for absorbing at least one of light emitted from the first phosphor particles and light emitted from the light emitting element and for emitting light having a longer peak wavelength than that of the at least one of the light emitted from the first phosphor particles and the light emitted from the light emitting element; and a sealing member 20, in which the second phosphor particles are dispersed, for sealing the light emitting element and the layer of first phosphor particles in the cup.
Public/Granted literature
- US20100013374A1 LIGHT EMITTING DEVICE AND METHOD FOR PRODUCING SAME Public/Granted day:2010-01-21
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