Display device and display optical system unit

Details Display device and display optical system unit Display device and display optical system unit

2006-10-31

2006-10-31

Fuller, Rodney (Department: 2851)

Optics: image projectors

Temperature control

Blower

C353S052000, C353S058000, C353S060000, C353S061000

Reexamination Certificate

active

07128422

ABSTRACT:
A display apparatus includes a light source, and a partition wall which divides an inside of the display apparatus into an enclosing space which includes a plurality of optical elements and an outer space with respect to the enclosing space. The optical elements includes a color separator which receives a light from the light source and emits a plurality of separate color beams, at least one reflecting type light valve which forms an image by reflecting the plurality of color beams, and a projection lens which projects the image of an external screen. A first cooling fan is provided which causes an air flow in the outer space. A least one of the optical elements forms a part of the partition wall, and the air flow cools the at least one reflecting type light valve from the outer space.

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