LCD Projector

Details LCD Projector LCD Projector

1996-11-08

1999-04-27

Spyrou, Cassandra

Optical: systems and elements

Polarization without modulation

Polarizarion by dichroism

359485, 359496, 349 5, 349 9, 353 20, 353 81, G02B 530

Patent

active

058985212

ABSTRACT:
Light from a light source is divided into P-and S-polarized beams by means of a polarizing beam splitter and converted into the same polarized wave. Two polarized waves are incident on a liquid crystal panel symmetrically at the same angle on right and left sides. An integrator comprising two lens arrays is disposed before and behind these polarization converting elements, and therefore brightness can be uniformly increased with a simple construction while achieving space saving.

REFERENCES:
patent: 5272496 (1993-12-01), Nicolas et al.
patent: 5295018 (1994-03-01), Konuma et al.
patent: 5381278 (1995-01-01), Shingaki et al.
patent: 5570109 (1996-10-01), Usui et al.
patent: 5689315 (1997-11-01), Fushimi et al.

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