Photocopying – Projection printing and copying cameras – With cathode ray tube for light source
Patent
1989-05-04
1990-05-08
Hayes, Monroe H.
Photocopying
Projection printing and copying cameras
With cathode ray tube for light source
355 81, 358 51, G03B 2772, G03B 2780
Patent
active
049242547
ABSTRACT:
An apparatus for recording an image onto a light recording medium (16) by sequentially recording a plurality of sections onto the light recording medium includes a light source (120) which emits light at a position which is movable over a light emitting area (21) of the light source controlled by a controller (13), the position of the light being subject to deviation from a desired position of the light emitting area of the light source which corresponds to a position to be recorded on the recording medium which has recording position coordinates; a translator (702) having controllable positions for moving the recording medium relative to a light source during the recording of the plurality of sections of the image; a light transmitting mechanism (14, 15) disposed between the light source and the recording medium for transmitting the light from the light source to the recording medium; a light position sensor (142) having a target area optically coupled to light emitted from a plurality of positions within the light emitting area of the light source used for recording for detecting the position of the light intersecting the target area of the sensor from the light emitting area of the light source and generating a signel dependent upon the light intersecting the target area; and wherein the controller, responsive to the signal, produces a correction parameter and sequentially controls the recording of the sections to record the image by controlling the position of the light on the light emitting area of the light source.
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Hayes Monroe H.
Silhouette Technology Inc.
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