Projector

Details Projector Projector

2007-02-06

2007-02-06

Dowling, William C. (Department: 2851)

Optics: image projectors

Structurally related projector and screen

C353S020000, C349S005000

Reexamination Certificate

active

10805241

ABSTRACT:
To provide a thin projector, such as a rear projector, formed by a less expensive projection optical system which is easy to assemble and install, and performing a highly accurate projection, projection light PL projected with a projection optical system onto a screen is linearly polarized light having a polarization azimuth along the longitudinal direction of the screen. With this arrangement, the right and left ends of the rear surface of the screen maintain a low reflectance, thereby reducing a loss in quantity of illumination light when passing through the screen, in other words, achieving high luminance of an image projected onto the screen while maintaining its uniformity of brightness.

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