Optical projection system with a novel lens system

Details Optical projection system with a novel lens system Optical projection system with a novel lens system

1994-12-30

1996-04-02

Dzierzynski, Paul M.

Optical: systems and elements

Mirror

Plural mirrors or reflecting surfaces

359851, 359891, 359855, 353 99, H01L 2714, G03B 2100, G03B 2128

Patent

active

055046290

ABSTRACT:
An optical projection system, capable of displaying an M.times.N number of pixels and having a reduced optical path and hence a reduced size, wherein M and N are integers, comprises a non-point light source, an array of M.times.N actuated mirrors, a projection screen, a projection lens and a lens system including a first lens unit, a second lens unit and an optical baffle located therebetween, wherein the optical baffle is provided with a plurality of apertures and light absorbing regions, each of the lens units includes an array of M.times.N microlenses.

REFERENCES:
patent: 4111538 (1978-09-01), Sheridon
patent: 5056912 (1991-10-01), Hamada et al.
patent: 5140396 (1992-08-01), Needham et al.
patent: 5379081 (1995-01-01), Kim et al.

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