Title:
LIGHTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/025120
Kind Code:
A1
Abstract:
A lighting device according to a first embodiment of the present disclosure comprises: a first light-emitting device; a plurality of second light-emitting devices; and a control unit. The first light-emitting device has a first light emission spectrum in which there is a first peak wavelength within a wavelength range from 360 to 430 nm, and the light intensity continuously decreases as the wavelength becomes longer from the first peak wavelength and as the wavelength becomes shorter from the first peak wavelength. The plurality of second light-emitting devices each have a second light emission spectrum: in which there is a second peak wavelength within a wavelength range from 360 to 430 nm, and there is a third peak wavelength within a wavelength range from a wavelength longer than the second peak wavelength to 750 nm; and in which the light intensity continuously decreases as the wavelength becomes shorter than the second peak wavelength and as the wavelength becomes longer than the third peak wavelength. The control unit controls the first light-emitting device and the plurality of second light-emitting devices. The plurality of second light-emitting devices have different respective third peak wavelengths.
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Inventors:
KATOU HIDETAKA (JP)
KUSANO TAMIO (JP)
IKEDA KOHEI (JP)
KUSANO TAMIO (JP)
IKEDA KOHEI (JP)
Application Number:
PCT/JP2020/030205
Publication Date:
February 11, 2021
Filing Date:
August 06, 2020
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
F21S2/00; F21V23/00; F21V9/32; H01L33/00; H01L33/50; H05B45/10; F21Y113/13; F21Y115/10
Foreign References:
| JP2013012778A | 2013-01-17 | |||
| JP2010182724A | 2010-08-19 | |||
| JP2017136396A | 2017-08-10 | |||
| JPS6363061B2 | 1988-12-06 | |||
| JP2015126160A | 2015-07-06 |
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