Method of illumination and display apparatus

Details Method of illumination and display apparatus Method of illumination and display apparatus

2008-07-22

2008-07-22

Sever, Andrew T (Department: 2851)

Optics: image projectors

Composite projected image

Reflector between lamp and screen

C353S094000, C348S759000

Reexamination Certificate

active

07401927

ABSTRACT:
A display apparatus displaying an image includes a light source, a light valve, a light cross-section converter and a light scanning mechanism. The light valve has a screen formed of a plurality of pixels. The light cross-section converter converts light emitted from the light source into illumination light having a cross section enough to illuminate at least one pixel at a time. The light scanning mechanism controls a direction of travel of the illumination light in such a way that the illumination light scans the plurality of pixels. The light scanning mechanism controls at least one of sequence, speed, and number of times of scanning where the illumination light scans the plurality of pixels, so that a desired profile of distribution of illuminance is obtained over an entire surface of the screen for a time period not longer than one frame time of an image.

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