Compact catadioptric lenses and lens systems with improved image quality and methods of using same
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United States of America Patent
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Apr 3, 2018
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N/A
app pub date -
Jul 24, 2017
filing date -
Sep 5, 2016
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Abstract
A catadioptric telephoto lens system which: receives incident light rays in a parallel path of both catoptrics and dioptrics, where some of the incident light rays go through a reflective path involving mirrors/reflective surfaces and others of the incident light rays go through a refractive path involving lenses; or receives incident light rays in a serial path of catoptrics and dioptrics, where all the incident light rays initially go through a reflective path involving mirrors/reflective surfaces and then go through a refractive path involving lenses. The system eliminates the black pupil/iris blur disadvantages associated with conventional telescopic lens systems and may be provided in a very compact form.
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