Optical system for direct imaging of light markable material
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United States of America Patent
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Oct 29, 2013
Grant Date -
Dec 9, 2010
app pub date -
Jun 3, 2009
filing date -
Jun 3, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
An imaging system. An array of light sources and an array of lenses corresponding to the light sources and having optical axes substantially parallel to one another are provided. The lenses produce collimated output beams. An afocal optical relay having an optical axis substantially parallel to the optical axes of the lenses is also included, the array of lenses being positioned relative to the afocal optical relay so as to form an optical system that produces an image of each collimated output beam on an image plane, each image having a prescribed depth of focus and spot size. The light sources preferably are lasers producing an array of respective laser beams having high intensity and a long waist. A system for writing information on a light-sensitive label includes the imaging system. Methods of imaging and of writing information on a light-sensitive label are also provided.
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