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
発光装置
2022-03-08
Patent
Elektronische Ressource
Japanisch
IPC: | F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / B23K Löten , SOLDERING OR UNSOLDERING / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES |