Two-dimensional illumination optical system and liquid crystal p

Details Two-dimensional illumination optical system and liquid crystal p Two-dimensional illumination optical system and liquid crystal p

1998-07-21

1999-11-30

Dowling, William

Optics: image projectors

Reflector

Plural

353 31, 362298, G03B 2114

Patent

active

059930101

ABSTRACT:
An illumination optical system has a light source unit, a first array having a plurality of two-dimensionally arranged cells which deflect a incident light from the light source unit and a second array having a plurality of cells two-dimensionally arranged in a vicinity of a focal plane of the first array, wherein at least one of the first array and the second array is formed as a reflection array.

REFERENCES:
patent: 5379080 (1995-01-01), Onozuka
patent: 5418583 (1995-05-01), Masumoto
patent: 5613768 (1997-03-01), Kim
patent: 5647664 (1997-07-01), Hanecka
patent: 5662401 (1997-09-01), Shimizu et al.
patent: 5755503 (1998-05-01), Chen et al.
patent: 5861991 (1999-01-01), Fork

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