Optical scanning system with wavelength shift correction
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United States of America Patent
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Jan 31, 1984
Grant Date -
N/A
app pub date -
Apr 8, 1981
filing date -
Apr 8, 1981
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A spot scanning holographic spinner system incorporates an optical element in the optical path to provide compensation for wavelength shifts in the coherent light source. The device is located in a plane parallel to the spinner and consists of a diffraction grating having the same properties as gratings formed on the spinner surface.
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