Title:
LIGHTING APPARATUS
Document Type and Number:
Japanese Patent JP2022191696
Kind Code:
A
Abstract:
To provide a lighting apparatus capable of suppressing deterioration of sky reproducibility even when used for a long time.SOLUTION: A lighting apparatus includes a blue LED module having a white LED, a blue LED, and a green LED, a light guide plate that diffuses the light of the blue LED module and emits surface light, and a control device that controls the blue LED module to reproduce the color of the sky, and the control unit is configured to individually correct the outputs to the white, blue, and green LEDs on the basis of deterioration information and a usage time of the light guide plate.SELECTED DRAWING: Figure 12
Inventors:
KOMATSU TAKUMITSU
Application Number:
JP2021100079A
Publication Date:
December 28, 2022
Filing Date:
June 16, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
MITSUBISHI ELECTRIC LIGHTING CORP
MITSUBISHI ELECTRIC LIGHTING CORP
International Classes:
H05B45/20; F21S2/00; F21S8/02; H05B45/10; H05B45/37; H05B47/105; H05B47/16
Attorney, Agent or Firm:
Patent Attorney Corporation Kisa Patent and Trademark Office