| 摘要 |
PROBLEM TO BE SOLVED: To obtain a large projector which has a relatively simple structure, achieves higher heat radiation effect, and is usable in an outdoor environment.SOLUTION: A light emitting diode type projector includes: a projector body 1; multiple light emitting diode elements 2 provided at the projector body 1 and serving as light sources; a substrate 3 on which the multiple light emitting diode elements 2 are arranged; a support medium 4 supporting the projector body 1; a reflector 5 which is provided so as to enclose the light emitting diode elements 2; and a heat sink 6 which is provided at the projector body 1 and fixes the substrate 3 in a manner that the heat sink 6 closely contacts with the substrate 3 on its entire surface. The heat sink 6 is formed including: a heat sink body 6A; thin plate-like fins 6B; and ultrasonic vibrators 6C. The heat sink body 6A is composed of a heat sink base substance 61; and a heat sink vibrator 62. The ultrasonic vibrators 6C provide vibrations to multiple fins 6B. |
