Dynamically controlled mirror for reduction of projected image d

Photocopying – Contact printing – Light boxes

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Details

350607, 355 52, G02B 510, G02B 718, G02B 1718, G02B 2718

Patent

active

047737484

ABSTRACT:
A deformable mirror system for reduction of projected image distortion in an optical system is disclosed. The mirror is adapted to correct for ray direction. In accordance with the invention, a mirror is located near an intermediate image plane. The distortion in the image is predetermined, and the mirror is contorted in a manner determined by the distortion to be corrected; relationships are prescribed for the desired contortion. Significant reduction in distortion can be achieved by placement of a mirror near the image plane; furthere reduction can be achieved in accordance with the invention by the placement of an additional contorted mirror at a subsequent image-forming aperture in the optical system.

REFERENCES:
patent: 3904274 (1975-09-01), Feinleib et al.
patent: 4091274 (1978-05-01), Angelbeck et al.
patent: 4271355 (1981-06-01), Wisner et al.
Air Force Report AFHRL-TR-81-27(I), Wide-Angle, Multiviewer, Infinity Display System, A. W. Zepf, Jun. 1982.

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