LIGHT-EMITTING DEVICE, ILLUMINATION LIGHT SOURCE, AND LUMINAIRE

摘要

PROBLEM TO BE SOLVED: To provide a light-emitting device and the like that improve color rendering and suppress an observer from recognizing color drift.SOLUTION: A light-emitting device 1 comprises: a substrate 10; and a blue LED chip 21 and a red LED chip 22 mounted on the substrate 10, a rate of reduction in light output to the temperature rise of the blue LED chip 21 is lower than that of the red LED chip 22, and a thickness of a section mounted with the blue LED chip 21 of the substrate 10 is larger than that of a section mounted with the red LED chip 22.