Title: Catoptric lens arrangement

Abstract: Improved catoptric lens arrangements to form beams from the energy emitted by extended sources of wave propagated energy are disclosed. All embodiments utilize at least a pair of mirrors disposed along a common axis, one of such mirrors being convex and the other concave, the generatrices of the reflecting surfaces of such mirrors being curves with coincident focal points, such generatrices being always divergent. At least one source of wave propagated energy is disposed between such reflecting surfaces so that all of the wave propagated energy from such a source is reflected back and forth between the mirrors in passing to an exit aperture defined by the mirrors.

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Inventors: McFarland, Philip J. (Lynnfield, MA, US)
Rambauske, Werner R. (Carlisle, MA, US)

Application Number: 552096
Filing Date: 1975-02-24
Publication_date: 1976-03-02
Assignee: Raytheon Company (Lexington, MA)
Primary Class(es): 359/859 362/297
Other Classes:
US Patent Ref:

2741691	Apr, 1956	Lee	350/294.
3790257	Feb, 1974	Goldstein et al.	350/294.
3790258	Feb, 1974	Rambauske	350/294.

Other Refs: 676,644

Jul, 1975	UK

Primary Examiner: Smith, Alfred E.
Assistant Examiner: Henry, Jon W.
Attorney: McFarland; Philip J., Pannone; Joseph D.