Photoplotting process and apparatus for high-energy plotting of a computer-stored raster image on a photosensitive record carrier
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United States of America Patent
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Jan 7, 2003
Grant Date -
N/A
app pub date -
Jul 12, 1999
filing date -
Jul 10, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Process and apparatus for a plotting raster image on a light-sensitive carrier. The process includes continuously displacing an exposure head, having a light modulator, relative to the light-sensitive record carrier, positioning a lens between the exposure head and the light-sensitive record carrier, and displacing the lens relative to the exposure head and light-sensitive record carrier. The apparatus includes an exposure head having a light modulator, a light-sensitive record carrier, and a plotting drive unit coupled to at least one of the exposure head and the light-sensitive record carrier. In this manner, the exposure head and the light-sensitive record carrier are adapted for relative movement to each other. The apparatus also includes a lens positioned between the exposure head and the light-sensitive record carrier, and a lens drive unit coupled to the lens. In this manner, the lens is adapted for movement relative to the exposure head and light-sensitive record carrier.
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