Title:
LIGHTING DEVICE AND ILLUMINATION DEVICE
Document Type and Number:
Japanese Patent JP2023030632
Kind Code:
A
Abstract:
To provide a lighting device capable of easily correcting chromaticity, and an illumination device.SOLUTION: A lighting device comprises: a lighting circuit which supplies a current to a first light source and a second light source of mutually different chromaticity and lights the first light source and the second light source; and a control unit which controls the current flowing to the first light source and the second light source. The current flowing in the first light source or the second light source is controlled in accordance with a first primary function of a first lighting control rate inputted from the outside when the first lighting control rate is greater than a predetermined first threshold, and is controlled in accordance with a second primary function of the first lighting control rate of which the inclination is different from that of the first primary function, when the first lighting control rate is equal to or smaller than the first threshold.SELECTED DRAWING: Figure 5
Inventors:
AIBA AKIHO
SUZUKI HIROSHI
HIRAMOTO YUYA
SUZUKI HIROSHI
HIRAMOTO YUYA
Application Number:
JP2021135863A
Publication Date:
March 08, 2023
Filing Date:
August 23, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
MITSUBISHI ELECTRIC LIGHTING CORP
MITSUBISHI ELECTRIC LIGHTING CORP
International Classes:
H05B45/325; H05B45/20; H05B45/345; H05B45/375; H05B45/38; H05B47/155
Attorney, Agent or Firm:
Patent Attorney Takada / Takahashi International Patent Office