Photocopying – Projection printing and copying cameras – Illumination systems or details
Patent
1993-07-26
1995-01-31
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Illumination systems or details
355 84, G03B 2754
Patent
active
053862686
ABSTRACT:
An exposure unit and method for imaging a photosensitive material includes a source of radiation for exposing the photosensitive material to actinic radiation such that the radiation strikes the photosensitive material at a plurality of angles of incidence, and apparatus for moving the radiation source relative to and in a plane parallel to the photosensitive material. The exposure unit also has a reflector for controlling (1) the proportion of (a) radiation having perpendicular angles of incidence to (b) radiation having non-perpendicular angles of incidence, such that the radiation having non-perpendicular angles is increased, and (2) the distribution of non-perpendicular angles of incidence.
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Cushner Stephen
Nelson Steven W.
Ohlig Albert H.
Verbiar Robert J.
E. I. Du Pont de Nemours and Company
Magee Thomas H.
Wintercorn Richard A.
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