Optical: systems and elements – Lens – With reflecting element
Reexamination Certificate
2007-09-11
2007-09-11
Pritchett, Joshua L. (Department: 2872)
Optical: systems and elements
Lens
With reflecting element
C359S362000, C359S725000, C359S726000
Reexamination Certificate
active
11336735
ABSTRACT:
A dual viewpoint solid catadioptric lens has a first spherical refractive surface S1having a center C1located on an optical axis of the lens and having a radius r1, and a second spherical refractive surface S2having a center C2located on the optical axis of the lens and having a radius r2<r1. The lens also has a first ellipsoidal reflective surface E1with foci F1and F1′ on the optical axis of the lens, and a second ellipsoidal partially reflective surface E2having foci F2and F2′ on the optical axis of the lens. Focus F1coincides with C1, focus F2conincides with C2, and focus F1′ coincides with F2′. The points C1and C2provide dual viewpoints for the lens, which may be used in a variety of imaging applications.
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Electronic Scripting Products, Inc.
Lumen Intellectual Property Services Inc.
Pritchett Joshua L.
LandOfFree
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