Lighting optical system

Details Lighting optical system Lighting optical system

1991-01-22

1992-01-28

Husar, Stephen F.

Illumination

Light source and modifier

Including reflector

362346, F21V 700

Patent

active

050848089

ABSTRACT:
An optical lighting system comprising either an optical system or an optical mirror system. In the optical lens and optical mirror systems, the light incident and exiting planes of the lenses and mirrors, are formed to satisfy given equations. Accordingly, in a contact or proximity exposure system, it is possible to unify irradiance on a surface to be irradiated and reduce the optical path length, thus reducing the overall device size. In a projections system, it is possible to unify irradiance on an image surface while efficiently utilizing light by omitting a gradient filter.

REFERENCES:
patent: 4242725 (1980-12-01), Douma et al.
patent: 4853749 (1989-08-01), Sorensen
patent: 5010465 (1991-04-01), Endo et al.

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