Invention Grant
- Patent Title: Light-emitting device
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Application No.: US16486828Application Date: 2017-10-18
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Publication No.: US10669479B2Publication Date: 2020-06-02
- Inventor: Shozo Oshio , Takeshi Abe
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- 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: Renner, Otto, Boisselle & Sklar, LLP
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6c892b6d
- International Application: PCT/JP2017/037649 WO 20171018
- International Announcement: WO2018/150630 WO 20180823
- Main IPC: C09K11/77
- IPC: C09K11/77 ; F21V9/30

Abstract:
A light-emitting device 1 includes: a solid-state light-emitting element 10 that radiates a laser beam L; and a wavelength converter 50 including a plurality of types of phosphors which receive the laser beam L and radiate light. The phosphors 50 included in the wavelength converter are substantially composed of a Ce3+-activated phosphor. Then, output light of the light-emitting device 1 has a light component across a wavelength range of at least 420 nm or more and less than 700 nm. The light-emitting device 1 is capable of radiating light with high color rendering properties over a wide wavelength range.
Public/Granted literature
- US20200024514A1 LIGHT-EMITTING DEVICE Public/Granted day:2020-01-23
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