Recorders – Performance of multiple functions of steam and gas engines – Pressure responsive element
Patent
1974-10-25
1976-04-27
Hix, L. T.
Recorders
Performance of multiple functions of steam and gas engines
Pressure responsive element
346 76L, 346108, 178 66R, 178 67R, 178 74, 178 76, 178 15, G01D 942
Patent
active
039538591
ABSTRACT:
The invention provides a method of and apparatus for recording latent photographic images on film by scanning the film in a raster pattern with a spot produced by focusing onto the film a beam of radiation, for example a laser beam, which is modulated in accordance with the retrieval of pictorial data defining an image to be recorded, the data comprising a plurality of elemental data each defining a required spot intensity at a respective elemental image area and a plurality of corrective data defining geometrical distortions of the image to be recorded. Clock signals are produced in accordance with the traverse of the spot, and the elemental data are retrieved in accordance with the production of the clock pulses the production of the clock signals being modified in accordance with the corrective data so as to determine the retrieval of the elemental data so as to set the spot intensity at the required level for each elemental image area as modified by the corrective data. The apparatus may be used in a scanning mode to generate pictorial data from the scanning of an image.
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Hix L. T,.
The Governing Council of the University of Toronto
Witkowski Stanley J.
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