| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device which is excellent in heat radiation performance and makes the heat radiation performance less likely to deteriorate with time.SOLUTION: A lighting device 1 includes: a light source unit 10 formed by housing a light emitting element 11b serving as a light source in a housing 13; and a support member 20 having an attachment part 23 to which the housing 13 is attached. The housing 13 is rotatably or slidably attached to the attachment part 23 in a state that a seat surface 13c formed in the housing 13 is pressed against the attachment part 23 side. A heat conductive sheet 81 and a friction reduction sheet 91 are disposed between the seat surface 13c and the attachment part 23 in a lamination manner. The heat conductive sheet 81 makes a surface contact with one of the seat surface 13c and the attachment part 23. |
