Optically beam steered infrared seeker

Details Optically beam steered infrared seeker Optically beam steered infrared seeker

1992-01-23

1993-04-13

Jordan, Charles T.

Aeronautics and astronautics

Missile stabilization or trajectory control

Automatic guidance

F41G 726

Patent

active

052018954

ABSTRACT:
A seeker is disclosed including a Cassegrainian telescope, responsive to an optical signal having a signal path, for directing the optical signal toward an optical detector. The seeker also includes a first rotatable optical wedge, disposed in the signal path of the optical signal, for directing the optical signal from a first direction toward the Cassegrainian telescope. The seeker further includes a second rotatable optical wedge, disposed in the signal path of the optical signal, for directing said optical signal from a second direction to the first direction. With such an arrangement, a seeker is provided which is capable of surviving a high "G" application and providing a wide field of view. The seeker provides two angular degrees of freedom in polar coordinates for the optical signal just as a two axis gimbal provides two angular degrees of freedom in Cartesian coordinates.

REFERENCES:
patent: 3296443 (1967-01-01), Argyle
patent: 4009393 (1977-02-01), Ashley et al.
patent: 4034949 (1977-07-01), Hoesterey et al.
patent: 4326799 (1982-04-01), Keene et al.
patent: 4347996 (1982-09-01), Grosso
patent: 4407464 (1983-10-01), Linick
patent: 4690351 (1987-09-01), Beckerleg et al.

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