Title:
ILLUMINATIION DEVICE, ILLUMINATIION SYSTEM, AND ILLUMINATIION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/181664
Kind Code:
A1
Abstract:
The present invention is provided with: a first light source (112) that emits light having a first color temperature lower than 4,000 K; a second light source (122) that emits light having a second color temperature higher than 4,000 K; and a control unit (130) that executes switching control for alternately emitting the light having the first color temperature and the second light having the second color temperature to the first light source (112) and the second light source (122) at an interval of 40 seconds or longer and 10 minutes or less.
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Inventors:
YAMADA AKIHIRO (JP)
KUWATA MUNEHARU (JP)
FUSHIE RYO (JP)
MITSUKURA YASUE (JP)
KUWATA MUNEHARU (JP)
FUSHIE RYO (JP)
MITSUKURA YASUE (JP)
Application Number:
PCT/JP2020/011147
Publication Date:
September 16, 2021
Filing Date:
March 13, 2020
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
UNIV KEIO (JP)
UNIV KEIO (JP)
International Classes:
H05B47/155; H05B47/16; H05B47/165
Foreign References:
| JP2017004657A | 2017-01-05 | |||
| JPH11135273A | 1999-05-21 | |||
| JP2014229534A | 2014-12-08 |
Attorney, Agent or Firm:
YAMAGATA Yoichi et al. (JP)
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