Method of exposing photosensitive medium for optimum density of

Details Method of exposing photosensitive medium for optimum density of Method of exposing photosensitive medium for optimum density of

1989-12-28

1991-10-15

Reinhart, Mark J.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346108, 358298, H04N 121

Patent

active

050578510

ABSTRACT:
Method and apparatus for imagewise exposing a photosensitive medium to a laser radiation according to image signals representative of nominal densities of original images, such that the medium is scanned in mutually perpendicular first and second directions at respective first and second scanning intervals. An intensity of a laser beam assigned to expose a given local spot on the photosensitive medium, which local spot has a size equal to the second scanning interval, is determined depending upon at least one of intensities of laser beams assigned to expose two local spots which are adjacent to the given local spot in the second direction, so that an average density of an image reproduced by exposure of the given local spot to the laser beam substantially coincides with the nominal density of the corresponding original image represented by the corresponding image signal.

REFERENCES:
patent: 4283631 (1981-08-01), Turner
patent: 4950069 (1990-08-01), Hutchinson

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