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Title:
LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND METHOD FOR USING LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/137731
Kind Code:
A1
Abstract:
This light-emitting device 1 includes: a light source 2 that emits primary light 6; and a first phosphor 4 that absorbs and converts the primary light 6 into first wavelength-converted light 7 having a longer wavelength than the primary light 6. The primary light 6 is a laser beam. The first wavelength-converted light 7 includes fluorescence based on Cr3+ electron energy transitions. The fluorescence spectrum of the first wavelength-converted light 7 has a maximum fluorescence intensity value in a wavelength region of greater than a wavelength of 710 nm.

Inventors:
NITTA MITSURU
OSHIO SHOZO
ABE TAKESHI
Application Number:
PCT/JP2019/049558
Publication Date:
July 02, 2020
Filing Date:
December 18, 2019
Export Citation:
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Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
C09K11/80; A61N5/067; H01L33/50; H01S5/022
Domestic Patent References:
WO2017164214A12017-09-28
Foreign References:
JP2018041856A2018-03-15
JPH05156246A1993-06-22
Attorney, Agent or Firm:
ITO Masakazu et al. (JP)
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