Efficient optical system for a high resolution projection displa

Details Efficient optical system for a high resolution projection displa Efficient optical system for a high resolution projection displa

1997-09-19

1998-07-07

Shafer, Ricky D.

Optical: systems and elements

Polarization without modulation

Depolarization

359495, 359502, 359634, 359638, 348751, 348752, 348756, 348757, 349 62, 353 33, 353 34, 353 37, 353 81, 385133, G02B 530, G02B 2728, G03B 2100, G02F 100

Patent

active

057777896

ABSTRACT:
An optical system is described consisting of reflection birefringent light valves, polarizing beam splitter, color image combining prisms, illumination system, projection lens, filters for color and contrast control, and screen placed in a configuration offering advantages for a high resolution color display. The illumination system includes a light tunnel having a cross-sectional shape corresponding to the geometrical shape of the spacial light modulator to optimize the amount of light projected onto the screen.

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