Projection display apparatus

Details Projection display apparatus Projection display apparatus

2007-11-27

2007-11-27

Koval, Melissa Jan (Department: 2862)

Optics: image projectors

Cabinet encloses projector and one side of screen

Light shield, mask, hood, or diaphragm

C353S077000, C353S078000, C353S097000, C353S099000

Reexamination Certificate

active

10893026

ABSTRACT:
The invention concerns a display apparatus with an imager illuminated by an illumination system and with an imaging system projecting an image on a viewing screen, wherein the brightness of the image on the imager has a variation over a given direction, and wherein the illumination system has light controlling elements for controlling the light distribution over the given direction.

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