Title:
LIGHT-EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/112392
Kind Code:
A1
Abstract:
Provided is a light-emitting device capable of creating a light environment in which biological rhythms can be adjusted and ensuring high color rendering properties at various color temperatures. A light-emitting device of the present invention is characterized by comprising: a first light-emitting body that emits light having a peak wavelength in a wavelength range of 480-510 nm and having a wavelength width characteristic that has a half-value wavelength width on both sides of 20 nm or less, a second light-emitting body that emits light having a peak wavelength in a wavelength range of 440-480 nm and having a wavelength width characteristic that has a half-value wavelength width on both sides of 20 nm or less, and a wide-light light-emitting body that emits light having a peak wavelength different from the peak wavelengths of light emitted by the first light-emitting body and the second light-emitting body in a wavelength range of 450-700 nm and having a wavelength width characteristic that has a half-value wavelength width on both sides of 30 nm or more; and a controller capable of independently controlling the emission intensity of the light emitted from the first light-emitting body, the second light-emitting body, and the wide-light light-emitting body.
Inventors:
KIRIHARA HIROSHI (JP)
MORITA TAKESHI (JP)
MORITA TAKESHI (JP)
Application Number:
PCT/JP2022/031596
Publication Date:
June 22, 2023
Filing Date:
August 22, 2022
Export Citation:
Assignee:
ELM INC (JP)
International Classes:
H05B47/105; A61M21/02; H05B47/16
Domestic Patent References:
| WO2018130403A1 | 2018-07-19 |
Attorney, Agent or Firm:
KYOTO INTERNATIONAL PATENT LAW OFFICE (JP)
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