Microfiche duplicator

Details Microfiche duplicator Microfiche duplicator

1978-04-07

1979-10-02

Wintercorn, Richard A.

Photocopying

Contact printing

Exposing on sensitized printing press plate or cylinder

355 70, 355 99, 355113, G03B 2704

Patent

active

041696751

ABSTRACT:
Apparatus for duplicating microfiche, which is of moderate cost yet which operates rapidly to make duplicates of high quality from both jacketed and unjacketed microfiche. A relatively uniform and collimated light source is provided for use with jacketed microfiche, by utilizing a bank of fluorescent aperture lamps and a bank of cylindrical lenses between the lamps and microfiche, with the side of the lenses closest to the microfiche being flattened and with the lenses having baffles of lower index of refraction than the clear segments of the lenses. A developing station for holding gaseous ammonia or other developing medium, is sealed by an inflatable seal.

REFERENCES:
patent: 2740061 (1956-03-01), Reeves
patent: 2953984 (1960-09-01), Hofstetter
patent: 3416862 (1968-12-01), Levin
patent: 3723001 (1973-03-01), Zeunen et al.
patent: 3754827 (1973-08-01), Okada
patent: 3936186 (1976-02-01), Boland et al.
patent: 3988537 (1976-10-01), Cooley

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