Photocopying – Projection printing and copying cameras – Illumination systems or details
Reexamination Certificate
2005-01-18
2005-01-18
Epps, Georgia (Department: 2873)
Photocopying
Projection printing and copying cameras
Illumination systems or details
C355S053000, C359S237000, C359S291000
Reexamination Certificate
active
06844920
ABSTRACT:
An exposure device for exposing a projection of an electronically stored artwork pattern onto a substrate, in particular a printing plate1,with image processing electronics (2) that can store the image data, with a light modulator (7) that can be electronically controlled by the image processing electronics (2), in particular an LCD display (7) or a micro-mirror device, with an illuminating device (8, 9) for illuminating the light modulator (7), and with a projection lens (11) for projecting the light modulator (7) onto the substrate (1), is improved according to the invention in that the image processing electronics (2) include a compensation device (4, 5) to compensate for optical defects and/or tolerances in the beam path of the exposure device.
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Basys Print GmbH Systeme fuer die Druckindustrie
Dinh Jack
Epps Georgia
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