System of reflective telescope baffles using conic sections of r

Details System of reflective telescope baffles using conic sections of r System of reflective telescope baffles using conic sections of r

1992-01-31

1993-07-06

Ben, Loha

Optical: systems and elements

Glare or unwanted light reduction

359611, 359399, 250352, G02B 2700

Patent

active

052259315

ABSTRACT:
An optical system with a tube having an open front end and a back end, imaging optics mounted in the tube and a plurality of light reflective baffle portions rotationally symmetric with respect to the optical axis, and wherein first baffle portions are configured as ellipsoids of revolution, all with foci lying adjacent edge portions of the open front end of the tube and facing the the open front end, and wherein the second baffle portions are configured as hyperboloids of revolution facing away from the open end and inwardly of the tube.

REFERENCES:
patent: 3699471 (1972-10-01), Mulready et al.
patent: 4217026 (1980-08-01), Radovich
patent: 4542963 (1985-09-01), Linlor
patent: 4598981 (1986-07-01), Hallam et al.
patent: 4820923 (1989-04-01), Wellman

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