Highly efficient collection optical systems for providing light detectors such as photodetectors and the like with hemispherical fields of view
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United States of America Patent
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Dec 26, 1995
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Aug 12, 1994
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Sep 25, 1992
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Abstract
This invention involves a novel egg-shaped hollow dual-compound conical light-ray concentrator with mirror-like inner walls (preferably tandem substantially inverted paraboloidal and ellipsoidal conical sections) for receiving light through one aperture end, as from an integrating sphere, and concentrating and collecting the rays within said walls and directing them to a detector at an opposite aperture end. This construction attains both high collection efficiency and hemispherical angular response.
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