Airborne system for the electrooptical detection, location and omnidirectional tracking of a target
US4647761A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1985 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Jun 6, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S3/786
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.