Adaptive imaging telescope with linear sensing and movable mirro

Details Adaptive imaging telescope with linear sensing and movable mirro Adaptive imaging telescope with linear sensing and movable mirro

1974-06-24

1977-04-05

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

350160R, G01J 120

Patent

active

040164152

ABSTRACT:
An adaptive energy telescope having a linear sensor for detecting a received optical image. A movable mirror phase shifter is positioned near the telescope aperture and is responsive to the received optical image. A linear image quality sensor is optically coupled to the phase shifter. The phase shifter may have a plurality of mirrors each attached to a piezoelectric crystal so that the mirrors are displaced in accordance with the voltages impressed across the piezoelectric crystals. This phase shifter may also be provided with a single planar reflective sheet instead of a plurality of mirrors. The sensor may consist of a plate with a pinhole for admitting a portion of the optical image and a transducer at one side of the plate for converting the portion to an electrical signal. The sensor may also consist of a transform of the Fourier or Hadamard types and a low and high frequency detector optically coupled to the transform mechanism which in turn is electrically connected to an electronic divider.

REFERENCES:
patent: 3594660 (1971-07-01), Huggett
patent: 3705758 (1972-12-01), Haskal
patent: 3713042 (1973-01-01), Kinsel
patent: 3731103 (1973-05-01), O'Meara
patent: 3846628 (1974-11-01), Towne

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