Dynamic aberration corrector for conformal windows

Details Dynamic aberration corrector for conformal windows Dynamic aberration corrector for conformal windows

1993-12-22

1996-06-11

Epps, Georgia Y.

Optical: systems and elements

Glare or unwanted light reduction

Directional or angular discrimination

359708, 250234, 250236, 244 316, G02B 2700, H01J 314, F41G 700

Patent

active

055261817

ABSTRACT:
A method and apparatus (30) for compensating for optical aberration created by a conformal window (60). The apparatus (30) comprises a one-dimensional corrector plate (32) for providing a varying amount of linear coma, first and second cylindrical lenses (34, 38) for providing a varying amount of astigmatism and a system for adjusting the corrector plate (32) and the lenses (34) and (38) to minimize the optical aberration created by the conformal window. The apparatus (30) of the present invention provides for correction of considerable amounts of optical aberration over a wide field of regard. The apparatus is simple in design, easy to install and cost effective.

REFERENCES:
patent: 2502543 (1950-04-01), Warmisham
patent: 2719457 (1955-10-01), Tripp
patent: 3296443 (1967-01-01), Argyle
patent: 4086000 (1978-04-01), Cox et al.
patent: 5140608 (1992-08-01), Karpol et al.
patent: 5161051 (1992-11-01), Whitney et al.
Schulte; "Prime Focus Correctors Involving Aspheries"; Applied Optics Feb. 1966, vol. 5, No. 2 pp. 313-317.

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