LIGHT SOURCE UNIT AND LUMINAIRE

摘要

PROBLEM TO BE SOLVED: To efficiently radiate heat generated from a light source of a luminaire.SOLUTION: A light source unit 20 attached to an opening of a luminaire includes a light source 26, a light source attachment part 27 to which the light source 26 is attached, and a ring-shaped frame 29 fixed to the light attachment part 27 and covering the opening part. The frame 29 and the light source attachment part 27 are thermally connected. The light source attachment part 27 is brought into surface contact with the rear face of the frame 29, and transmits heat generated in the light source 26 to the frame 29. The light source attachment part 27 is brought into contact with the rear surface of the frame 29 in an omnidirectional manner with the light source 26 as a center.SELECTED DRAWING: Figure 5