Optical: systems and elements – Compound lens system – With curved reflective imaging element
Reexamination Certificate
2006-09-14
2009-10-13
Allen, Stephone B (Department: 2872)
Optical: systems and elements
Compound lens system
With curved reflective imaging element
C359S399000, C359S856000
Reexamination Certificate
active
07602548
ABSTRACT:
A Schiefspiegler telescope with three reflecting surfaces, preferably for observing the earth from space, particularly for imaging radiometers. A novel possibility for realizing a reflector telescope without vignetting which permits a simple construction and a simple adjustment of the reflecting surfaces relative to one another. In a Schiefspiegler telescope with three reflecting surfaces whose mirror axes are arranged within a plane, the primary reflecting surface and tertiary reflecting surface are convex surfaces of identical shape arranged symmetrically with respect to an axis of symmetry. The secondary reflecting surface is arranged symmetric to the primary reflecting surface and tertiary reflecting surface so as to be rotationally symmetric around the axis of symmetry so that all three reflecting surfaces have an axially symmetric mirror arrangement with respect to design in which the optical imaging is transmitted to a receiver in the manner of an off-axis telescope.
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Thorwirth Guenter
Voss Burkart
Allen Stephone B
Chapel Derek S
Jena-Optronik GmbH
Reed Smith LLP
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