Photocopying – Projection printing and copying cameras – Illumination systems or details
Patent
1993-11-22
1995-01-31
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Illumination systems or details
355 53, G03B 2754
Patent
active
053862660
ABSTRACT:
A projection exposure system includes a light source, a parallel-light forming lens and a fly's eyes lens which are sequentially disposed along a light traveling path. Between the parallel-light forming lens and fly's eyes lens is provided a light dispersing device which is composed of a first light dispersing lens with a concave lens or a second light dispersing lens with multiple small convex lenses. The light dispersing device diverges central light incident on the fly's eyes lens, to thereby increase peripheral light intensity. Accordingly, in tilted illumination, which uses peripheral light, light utilizing efficiency is raised.
REFERENCES:
patent: Re34634 (1994-06-01), Konno et al.
patent: 4497015 (1985-01-01), Konno et al.
patent: 4619508 (1986-10-01), Shibuya et al.
patent: 4789222 (1988-12-01), Ota et al.
patent: 4939630 (1990-07-01), Kikuchi et al.
patent: 5160962 (1992-11-01), Miura et al.
patent: 5237367 (1993-08-01), Kudo
patent: 5245384 (1993-09-01), Mori
patent: 5296892 (1994-03-01), Mori
patent: 5300971 (1994-04-01), Kudo
patent: 5309198 (1994-05-01), Nakagawa
patent: 5311249 (1994-05-01), Kamon et al.
Donohoe Charles R.
Samsung Electronics Co,. Ltd.
Westerlund, Jr. Robert A.
Whitt Stephen R.
Wintercorn Richard A.
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