Apparatus for exposing diazo printing plates and the like

Details Apparatus for exposing diazo printing plates and the like Apparatus for exposing diazo printing plates and the like

1974-07-25

1976-02-03

Moses, Richard L.

Photocopying

Contact printing

Light monitoring exposure control

355 68, 355 70, 355 85, G03B 2778

Patent

active

039361861

ABSTRACT:
Apparatus for graphic arts plate making suitable for exposing diazo plates and the like. A unit providing an exposure bed with a plurality of lamps close to the negative and plate and operating in the ultraviolet region, and another plurality of lamps in the visible light region with a diffused glass top for a work table and for fixing an exposed plate. Separate control units for each exposure lamp to provide uniform radiation from all lamps to the plate.

REFERENCES:
patent: 3479119 (1969-11-01), Miller et al.
patent: 3619601 (1971-11-01), Gush et al.
patent: 3627416 (1971-12-01), Benson
patent: 3715160 (1973-02-01), Fader et al.
patent: 3732461 (1973-05-01), Bickl et al.

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