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STEERING MECHANISM FOR ATHERMAL IMAGING SYSTEM AND RANGEFENDER THEREFOR BACKGROUND OF THE INVENTION 1. Field of the Invention
| Content Provider | Semantic Scholar |
|---|---|
| Author | Linick, James Rrrpffff, Sesairess |
| Copyright Year | 2017 |
| Abstract | A steering mechanism is described for use in conjunc tion with a thermal imaging system. The steering mech anism comprises a pair of prisms which are positioned serially in front of the scanning mechanism of the ther mal imaging system. The prisms are individually rotated by a motor means. A position encoder is connected to each of the prisms to provide feedback position infor mation to a search computer which controls the rota tion of the prisms. The refraction of the thermal image produced by the rotating prisms enables the scanning mechanism of the thermal imaging system to search in any searching pattern within a variable field of regard in the field of search of the steering mechanism. The steer ing mechanism may also function to boresight a laser on the same target viewed by the thermal imaging system. In one embodiment, the laser comprises a pulsed-type laser whose pulsed laser beam is transmitted through the prisms onto an acquired target. The reflection of the pulsed laser beam is then reflected from the acquired target and detected by the thermal imaging system. The lapse of time between transmission and detection of the pulsed laser beam enables the computer to compute the range of the target. The laser may alternatively com prise a low power continuous output laser which may function as a laser designator for beam rider devices. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://patentimages.storage.googleapis.com/d2/a6/3d/c7dfb1197183e1/US4407464.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
