Illumination system for color displays

Details Illumination system for color displays Illumination system for color displays

1995-11-30

1999-03-30

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

349 8, 349 84, 349 95, 349201, 359224, 359291, 359771, G02F 11335, G02F 11333, G02F 113

Patent

active

058895671

ABSTRACT:
Binary optics are used in an illumination system for a color projection display. In one embodiment a broad spectrum light source illuminates a multilevel optical phase element which disperses the broad spectrum light from the light source by diffraction. A display having a number of pixel elements, each capable of transmitting a predetermined spectral region, is positioned within the near field region of the multilevel optical phase element so as to receive the light dispersed by the multilevel phase element.

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