Image stabilizing optical system having a variable prism

Details Image stabilizing optical system having a variable prism Image stabilizing optical system having a variable prism

1974-02-14

1976-03-09

Rubin, David H.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356248, G02B 2300

Patent

active

039428621

ABSTRACT:
An image stabilized system comprising an afocal telescopic system section, deflecting means and a relay lens system section arranged in this order from the front, said deflecting means including a plano-convex and a plano-concave lens mounted in mating rotatable relation to each other, one of which is fixedly secured to the instrument housing containing the optical system in coaxial alignment with said telescopic system and relay lens system, and the other is held in fixed spatial alignment with the original line of a sight axis by means of a gyro stabilizer coupled thereto, thereby provide for stabilization of an image at the focal plane against accidental angular displacement or motions of the instrument relative to the original line of sight axis.

REFERENCES:
patent: 2959088 (1960-11-01), Rantsch
patent: 3378326 (1968-04-01), Alvarez
patent: 3475074 (1969-10-01), Humphrey
patent: 3531176 (1970-09-01), Humphrey
patent: 3582179 (1971-06-01), Nakazawa

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