Optical system for viewing a scene

Details Optical system for viewing a scene Optical system for viewing a scene

1984-04-30

1987-01-13

Corbin, John K.

G02B 2302

Patent

active

046360441

ABSTRACT:
An optical system comprises a number of optical elements arranged in a housing. The housing may be fixed to the underside of an airship. The system corrects for picture tilt. The housing comprises a first fixed portion, a second portion rotatable relative to the first portion around an axis XX', and a third portion rotatable relative to the second portion around an axis YY' orthogonal to XX'. The combination of the rotating motions of the portions B and C of the housing render it possible to rotate the line of sight of the optical system through more than one half-circle.

REFERENCES:
patent: 3173012 (1965-03-01), DeWinter
patent: 3459465 (1969-08-01), Rosin et al.
patent: 4158504 (1979-01-01), de Ponteves et al.
patent: 4397530 (1985-08-01), Baluteau

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