Title:
LIGHTING FIXTURE AND DIMMING CONTROL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/085546
Kind Code:
A1
Abstract:
Provided is lighting in consideration of the effects on the human body. This lighting fixture comprises, in a chromaticity diagram of the CIE1931 color system, a first light emitting device which has a high melanopic ratio and emits light having first chromaticity coordinates, a second light emitting device which emits light having second chromaticity coordinates, and a third light emitting device which has a low melanopic ratio and emits light having third chromaticity coordinates, wherein light in a range from a first temperature to a second temperature on a blackbody radiation trajectory is included in a triangular area surrounded by a straight line connecting the first chromaticity coordinates and the second chromaticity coordinates, a straight line connecting the second chromaticity coordinates and the third chromaticity coordinates, and a straight line connecting the third chromaticity coordinates and the first chromaticity coordinates.
Inventors:
EGUCHI JUNICHI (JP)
ASAI KENJI (JP)
ASAI KENJI (JP)
Application Number:
PCT/JP2020/040676
Publication Date:
May 06, 2021
Filing Date:
October 29, 2020
Export Citation:
Assignee:
NICHIA CORP (JP)
International Classes:
H05B47/105; F21V9/32; H01L33/50; F21Y115/10
Foreign References:
| JP2018511386A | 2018-04-26 | |||
| US20180077767A1 | 2018-03-15 | |||
| US20170348506A1 | 2017-12-07 | |||
| JP2018129492A | 2018-08-16 |
Other References:
See also references of EP 4054294A4
Attorney, Agent or Firm:
TAKEUCHI, ICHIZAWA & ASSOCIATES (JP)
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