Invention Grant
- Patent Title: Light-emitting device
- Patent Title (中): 发光装置
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Application No.: US13192928Application Date: 2011-07-28
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Publication No.: US08916893B2Publication Date: 2014-12-23
- Inventor: Yasunari Ooyabu , Toshitaka Nakamura , Hironaka Fujii , Hisataka Ito
- Applicant: Yasunari Ooyabu , Toshitaka Nakamura , Hironaka Fujii , Hisataka Ito
- Applicant Address: JP Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Osaka
- Agency: Sughrue Mion, PLLC
- Priority: JP2010-174477 20100803
- Main IPC: H01L33/00
- IPC: H01L33/00 ; H01L33/50 ; B82Y30/00 ; C04B35/44 ; C04B35/645 ; C09K11/08 ; C09K11/61 ; C09K11/77 ; H01L33/58

Abstract:
A light-emitting device includes a circuit board to which external electric power is supplied, a light emitting diode that is electrically connected onto the circuit board and emits light based on electric power from the circuit board, a housing provided on the circuit board so as to surround the light emitting diode and so that the upper end portion of the housing is positioned above the upper end portion of the light emitting diode, and a fluorescent laminate provided on the housing. The fluorescent laminate includes a first fluorescent layer that emits fluorescent light and a second fluorescent layer that emits fluorescent light having a wavelength that is longer than that of the first fluorescent layer. The second fluorescent layer is disposed on the housing and the first fluorescent layer is laminated on the second fluorescent layer.
Public/Granted literature
- US20120032219A1 LIGHT-EMITTING DEVICE Public/Granted day:2012-02-09
Information query
IPC分类: