| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED projector in which a deterioration of LED hardly occurs, it shows a superior luminous efficiency and durability, LED etc. of large light flux can be used as a light source because it shows a superior heat radiation and temperature unevenness is hardly generated at the base plate without any relation to a light irradiating direction.SOLUTION: This projector comprises (a) a main body member having a base part, an expanded part cooperatively arranged at the base part, formed with a reflection surface at the inner wall surface and expanded toward the outside, and a flat plate part formed and arranged at the base part side of the expanded part of the main body member or at the expanded part side of the base part, (b) a base plate arranged at the expanded part side of the flat plate part and having one or a plurality of LEDs practically installed at the expanded part side, (c) at least two or more first heat pipes having main body member arranged at the outer peripheral surface of the expanded part or in the expanded part, (d) one end part of the first heat pipe is arranged at the opposite surface side of the surface on which the LEDs are practically installed of the base plate at the flat plate part and the other end of the first heat pipe is arranged toward and along the expanded diameter side of the expanded part. |
