Invention Grant
- Patent Title: Light-emitting device
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Application No.: US16972947Application Date: 2019-06-12
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Publication No.: US11641009B2Publication Date: 2023-05-02
- Inventor: Takashi Fukuda , Tetsuya Gouda , Yuta Sakimoto , Naoto Hirosaki , Kohsei Takahashi
- Applicant: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY , PHOENIX ELECTRIC CO., LTD. , NATIONAL INSTITUTE FOR MATERIALS SCIENCE
- Applicant Address: JP Tokyo; JP Himeji; JP Tsukuba
- Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY,PHOENIX ELECTRIC CO., LTD.,NATIONAL INSTITUTE FOR MATERIALS SCIENCE
- Current Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY,PHOENIX ELECTRIC CO., LTD.,NATIONAL INSTITUTE FOR MATERIALS SCIENCE
- Current Assignee Address: JP Tokyo; JP Himeji; JP Tsukuba
- Agency: Oliff PLC
- Priority: JPJP2018-111551 20180612,JPJP2018-211960 20181112
- International Application: PCT/JP2019/023203 WO 20190612
- International Announcement: WO2019/240150 WO 20191219
- Main IPC: H01L33/50
- IPC: H01L33/50 ; C09K11/77 ; H01S5/00 ; H01L27/32 ; H05B33/14

Abstract:
A light-emitting device including a solid-state light source that emits light having a peak wavelength in the range of 480 nm or less and a fluorescent film that covers the solid-state light source and includes at least one kind of phosphor, wherein the fluorescent film includes at least one kind of near-infrared phosphor that is excited by light from the solid-state light source, has a peak wavelength in the range exceeding 700 nm, and has an emission spectrum with a full width at half maximum of 100 nm or more in a range including the peak wavelength.
Public/Granted literature
- US20210249569A1 LIGHT-EMITTING DEVICE Public/Granted day:2021-08-12
Information query
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