Invention Grant
- Patent Title: Light-emitting device for emitting light of multiple color temperatures
- Patent Title (中): 用于发射多种色温的发光装置
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Application No.: US13853347Application Date: 2013-03-29
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Publication No.: US09046228B2Publication Date: 2015-06-02
- Inventor: Kenichiro Tanaka , Tomoyuki Nakano , Yoshiyuki Nakano
- Applicant: PANASONIC CORPORATION
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: Greenblum & Bernstein, P.L.C.
- Priority: JP2012-087105 20120406
- Main IPC: F21K99/00
- IPC: F21K99/00 ; F21V13/04 ; H05B33/14 ; B60Q1/04 ; F21S8/10 ; H01L25/075 ; H01L33/50
Abstract:
A light-emitting unit includes a mounting substrate, and a first light-emitting portion disposed on the mounting substrate and emits light of a first color temperature to irradiate a first irradiation area, and second light-emitting portions each disposed on the mounting substrate and emits light of a second color temperature to irradiate a second irradiation area. The second irradiation area overlaps part of the first irradiation area and includes a region surrounding the first irradiation area.
Public/Granted literature
- US20130265757A1 LIGHT-EMITTING DEVICE Public/Granted day:2013-10-10
Information query
