Liquid crystal display projection systems employing polarizing b

Details Liquid crystal display projection systems employing polarizing b Liquid crystal display projection systems employing polarizing b

1993-11-16

1995-06-27

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

354246, 354495, 354496, 354629, 354638, 359496, 359629, 359638, 359 41, 359 42, 359 48, 359 49, G02F 11335, G02F 103, G02B 530, G02B 2114

Patent

active

054284694

ABSTRACT:
A liquid crystal display projection system for providing improved brightness. A light beam is split by a polarizing beam splitter into two polarized beams having substantially orthogonal polarizations. The beams are reflected by one pair of mirrors toward an opposite side of a liquid crystal display, so that the two beams pass through the display in opposite directions. The two beams are then reflected by another pair of mirrors toward another polarizing beam splitter, where the beams are recombined into a single beam for projection onto a screen.

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