Exposure station for a photocopier

Details Exposure station for a photocopier Exposure station for a photocopier

1994-08-18

1996-06-04

Braun, Fred L.

Photocopying

Projection printing and copying cameras

Illumination systems or details

G03B 2772, G03B 2776

Patent

active

055238190

ABSTRACT:
An exposure station for a photocopier includes an illumination device positioned above a transport plane for a copy original, with a lamp as the source of the copy light, and a focusing hood positioned in the light path of the lamp between the lamp and the copy original. A projection lens system is positioned between the transport plane of the copy original and a transport plane for the copy material for reproducing the copy original on the copy material. By adjusting the projection lens system, for example, by selecting different lenses, it is possible to set different enlargement sizes. The luminance conditions of the copy light falling on the copy original can be adjusted to the enlargement size that has been set.

REFERENCES:
patent: 3684371 (1972-08-01), Weisglass et al.
patent: 4053222 (1977-10-01), Gandini
patent: 4368974 (1983-01-01), Coote et al.
patent: 4432636 (1984-02-01), Tarsia
patent: 5041868 (1991-08-01), Suzuki
patent: 5057864 (1991-10-01), Kijima et al.
patent: 5155524 (1992-10-01), Oberhardt et al.

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