Title:
LIGHTING FIXTURE
Document Type and Number:
Japanese Patent JP2023013626
Kind Code:
A
Abstract:
To provide a lighting fixture capable of suppressing heat generation and preventing breakage of electronic components.SOLUTION: A lighting fixture comprises: a power supply circuit that generates a predetermined voltage on the basis of a power supply voltage; a light source that includes a plurality of light-emitting elements and an adjustment unit adjusting a drive current flowing in each of the plurality of light-emitting elements, and that uses the predetermined voltage as a power supply; a temperature detection circuit for detecting a temperature, provided on a substrate on which the power supply circuit is arranged; and a control unit that controls the adjustment unit on the basis of a first signal from the temperature detection circuit and a second signal indicating lighting conditions of the plurality of light-emitting elements.SELECTED DRAWING: Figure 3
Inventors:
YAGITSU SHOHEI
OTA MASARU
OTA MASARU
Application Number:
JP2021117947A
Publication Date:
January 26, 2023
Filing Date:
July 16, 2021
Export Citation:
Assignee:
KOITO MFG CO LTD
International Classes:
H05B47/105; H05B45/10; H05B45/325; H05B45/375; H05B45/38; H05B45/395; H05B45/46; H05B47/18
Attorney, Agent or Firm:
Patent Attorney Corporation Isshiki International Patent Office