| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical system unit having high cooling efficiency of a projection-side optical system and a projector having the optical system unit. SOLUTION: The projector 10 includes: a casing having a substantially rectangular parallelepiped shape; a light source device 63; an optical system unit 77 having an optical system, a display element 51, and so forth; a cooling fan; a control circuit board 103 having a projector control means; and an optical system control board 86. The optical system unit 77 guides the light from the light source with an illumination-side block 78, irradiates a display element 51 included in an image generation block 79 with the light, and magnifies and projects an on-state light ray generated by the reflection with the display element 51 by a projection-side optical system 62 included in a projection-side block 80. An upper surface of the projection-side block 80 is covered with a barrel cover 92 provided with a heat sink 91 on the surface. COPYRIGHT: (C)2008,JPO&INPIT
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