Title:
LIGHT-EMITTING DEVICE AND ILLUMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/075505
Kind Code:
A1
Abstract:
A light-emitting device according to one embodiment of this disclosure emits first light having a first peak wavelength in a wavelength range of 630-680 nm, a second peak wavelength in a wavelength range of 430-480 nm, and a third peak wavelength in a wavelength range of 380-430 nm. If the light intensity at the second peak wavelength is 1, the first light has a relative light intensity at the first peak wavelength of 0.05-0.35 and a relative light intensity at a third peak wavelength of 0.25-0.45. The first light has a first minimum value for the light intensity at a wavelength range from 480 nm to the first peak wavelength.
Inventors:
KUSANO TAMIO (JP)
YOKOI KIYOTAKA (JP)
YOKOI KIYOTAKA (JP)
Application Number:
PCT/JP2020/038942
Publication Date:
April 22, 2021
Filing Date:
October 15, 2020
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
F21S2/00; F21V9/38; H01L33/00; H01L33/50; F21Y115/10
Domestic Patent References:
| WO2019064675A1 | 2019-04-04 | |||
| WO2019106864A1 | 2019-06-06 | |||
| WO2017069206A1 | 2017-04-27 |
Foreign References:
| JP2016142525A | 2016-08-08 | |||
| JP2017212428A | 2017-11-30 | |||
| JP2001269104A | 2001-10-02 |
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