Title:
色温度可変型照明装置
Document Type and Number:
Japanese Patent JP7237317
Kind Code:
B2
Abstract:
To provide a color temperature variable lighting device capable of varying a color temperature so that even an amateur is enabled to easily identify and select objects such as agricultural products or seafood and that a look of a specific color is highlighted by function switching, by measuring environmental light, emitting light in a complementary color thereof and additive color mixing the environmental light and the complementary color so as to obtain white light.SOLUTION: The present invention relates to a color temperature variable lighting device comprises: a color sensor which measures colors of environmental lights; LEDs in four colors lighting an object; a chromaticity coordinate transform unit which transforms a color signal from the color sensor into a predetermined color space; a complementary color calculation unit for calculating a complementary color in the color space; and an LED correction unit which corrects the LEDs on the basis of the complementary color and performs light emission.SELECTED DRAWING: Figure 6
Inventors:
Hattori Takao
Hasegawa window
Hasegawa window
Application Number:
JP2020203955A
Publication Date:
March 13, 2023
Filing Date:
December 09, 2020
Export Citation:
Assignee:
NST Inc.
Happy Quality Co., Ltd.
Happy Quality Co., Ltd.
International Classes:
H05B47/11; A01G7/00; A01K61/90; H05B45/20; H05B45/325
Domestic Patent References:
| JP2008264430A | ||||
| JP2020167063A | ||||
| JP2005334131A | ||||
| JP2019029109A | ||||
| JP2009099510A |
Foreign References:
| WO2020175710A1 | ||||
| US20150271892 |
Attorney, Agent or Firm:
Azusa Yuzo
Yoshiaki Kanno
Shinji Koga
Yoshiaki Kanno
Shinji Koga