1976-06-09
1977-06-14
Corbin, John K.
350 55, 350294, G02B 2717
Patent
active
040293890
ABSTRACT:
A radiation scanning system which includes a radiation detector located at the focus of an objective lens element and a radiation scanning element arranged to scan radiation emanating from a field of view across the detector. The radiation forms a primary pupil, and one of said elements is located at a conjugate pupil formed by an optical assembly which comprises first and second concave part-spherical reflectors respectively having their centers of curvature substantially optically coincident with the locations of the primary pupil and the conjugate pupil, and a convex reflector substantially coincident with the locus of the focii formed by parallel beams of radiation emanating from the primary pupil and incident upon the first concave reflector.
REFERENCES:
patent: 2920136 (1960-01-01), Peterson
patent: 3443853 (1969-05-01), Todd
patent: 3460886 (1969-08-01), Rumsey
Barr and Stroud Limited
Corbin John K.
DELOS Reyes Ben W.
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