発光装置

Japanese Patent JP7031547

B2

To provide a light-emitting device capable of inhibiting the heat of a light-emitting module and a drive IC from exerting influence on each other in the light-emitting device in which a light-emitting module having a plurality of light-emitting elements for emitting light having different chromaticity and a drive IC for driving the light-emitting module are mounted on a printed circuit board.SOLUTION: According to an embodiment of the present invention, a light-emitting device 1 including a light-emitting module 2 having first to third light-emitting elements 21 to 23 and mixing respective emission light of the first to third light-emitting elements 21 to 23 to emit mixed light includes: a drive IC 3 including a reception part 301 for acquiring command information of the mixed light by communication, and a drive part 302 for performing PWM driving of the first to third light-emitting elements 21 to 23 on the basis of the command information; and a printed circuit board 4 on which the light-emitting module 2 and the drive IC 3 are mounted, wherein the light-emitting module 2 is mounted on a first mounting surface 4a of the printed circuit board 4, and the drive IC 3 is mounted on a second mounting surface 4b of the printed circuit board 4.SELECTED DRAWING: Figure 1

Yasutsugu Sugiura
Kazuki Yabashi
Taro Isogai

JP2018181805A

March 08, 2022

September 27, 2018

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Toyoda Gosei Co., Ltd.

F21V23/00; B23K1/00; B60Q3/74; B60Q3/80; F21V19/00; F21V29/10; H01L33/00

JP2010538432A
JP2014229372A
JP2013004389A
JP2001326455A

Hirata International Patent Office

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