Method and apparatus for correcting chromatic aberrations in a telescope
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United States of America Patent
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Jan 3, 2017
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N/A
app pub date -
Dec 18, 2014
filing date -
Dec 30, 2013
priority date (Note) -
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Abstract
Methods and systems for correcting chromatic aberrations in a telescope incorporating a diffractive primary optical element are provided. In particular, a corrective optic assembly that includes a corrector diffractive optical element (DOE) is described. The corrective optic assembly provides light to the corrector DOE at a high incidence angle. Moreover, light is reflected from the corrector DOE at a high exit angle comprising a cylindrical Littrow configuration allowing for greater bandwidth and smaller size.
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