Airborne system for the electrooptical detection, location and o

Details Airborne system for the electrooptical detection, location and o Airborne system for the electrooptical detection, location and o

1985-06-06

1987-03-03

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

244 316, G06F 1550

Patent

active

046477616

ABSTRACT:
An airborne system for the electrooptical detection, location and omnidirectional tracking of a target has an input objective lens carried by a universal joint, whereof one frame is rotated circularly in azimuth and the second frame moves the optic in elevation. An image offsetting optical section integral with the universal joint maintains the image centering through the detection plane, the detector being fixed. The image offsetting optical section is catadioptric and has an input mirror integral with the objective lens, and an output mirror integral with the first frame and which reflects the radiation along the circular rotation axis. The input objective lens focuses the radiation in an image plane located on the optical path between two mirrors, and a second optical objective lens, re-forms the field image in the detection plane.

REFERENCES:
patent: 4404592 (1983-09-01), Pepin et al.

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