Title:
LIGHT IRRADIATION DEVICE AND LIGHT-EMITTING MODULE
Document Type and Number:
WIPO Patent Application WO/2021/131376
Kind Code:
A1
Abstract:
A light irradiation device (100) comprises: first light sources (4) that emit first light having a first peak wavelength that reaches maximum intensity in the wavelength range from near-ultraviolet to green in the emission spectrum; second light sources (5) that emit second light having a second peak wavelength that reaches maximum intensity in the wavelength range from near-ultraviolet to green in the emission spectrum, the second light being radiated to the same position as the first light; and a detection device (1) that detects whether or not an object is present at a prescribed position. The second peak wavelength is shorter than the first peak wavelength. When the detection device (1) has detected that an object is present at the prescribed position, the luminous flux of the first light is reduced and the luminous flux of the second light is increased.
Inventors:
HORI ATSUHIRO
NAKASHIMA KENJI
KAWAGUCHI YASUTOSHI
TAKEISHI HIDEMI
MICHIMORI MASANORI
HAYASHI SHIGEO
NAKASHIMA KENJI
KAWAGUCHI YASUTOSHI
TAKEISHI HIDEMI
MICHIMORI MASANORI
HAYASHI SHIGEO
Application Number:
PCT/JP2020/042202
Publication Date:
July 01, 2021
Filing Date:
November 12, 2020
Export Citation:
Assignee:
NUVOTON TECH CORPORATION JAPAN (JP)
International Classes:
B60Q1/24; B60Q1/04; F21S2/00; F21S8/08; F21S41/141; F21S41/663; H05B47/115; F21W102/145; F21W131/103; F21W131/105; F21Y115/10; F21Y115/30
Domestic Patent References:
| WO2015174322A1 | 2015-11-19 | |||
| WO2019087232A1 | 2019-05-09 |
Foreign References:
| JP2009286198A | 2009-12-10 | |||
| JP2013109911A | 2013-06-06 | |||
| JP2012028272A | 2012-02-09 |
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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