Compensation plate for tilted plate optical aberrations

Details Compensation plate for tilted plate optical aberrations Compensation plate for tilted plate optical aberrations

1995-02-07

1996-02-06

Epps, Georgia Y.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By partial reflection at beam splitting or combining surface

359634, 359583, G02B 2714

Patent

active

054900131

ABSTRACT:
The present invention is directed to compensation plates for eliminating astigmatism and coma optical aberration in optical systems. In particular, the present invention can be used in LCD projection systems to compensate for aberrations in different color channels. This enables the production of LCD systems completely free of astigmatism and/or coma.

REFERENCES:
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patent: 3794407 (1974-02-01), Nishimura
patent: 4495709 (1984-02-01), Iwata et al.
patent: 4541688 (1985-09-01), Watt
patent: 4709139 (1987-11-01), Nakamura
patent: 4836649 (1989-06-01), Ledebuhr
patent: 4864390 (1989-09-01), McKelhnie et al.
patent: 5073013 (1991-12-01), Sonehara
patent: 5144486 (1992-09-01), Hart
patent: 5200857 (1993-04-01), Matsushita
patent: 5298986 (1994-03-01), Owada

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