Dual band framing reconnaissance camera
US6694094B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2002 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Apr 18, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B17/0896
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A reconnaissance camera is described which has a Cassegrain optical system forming an objective lens that directs radiation to a spectrum-dividing prism. The prism directs radiation in a portion of the electromagnetic spectrum (e.g., visible) into a first optical path having a two-dimensional image-recording medium. Radiation in a second band of the spectrum (e.g., IR or UV) is directed to a second optical path, which has a two-dimensional image-recording medium. A motor system is coupled to a camera housing that encloses the optical elements of the camera and the image recording media. The motor steps the entire camera housing about the roll axis while the image recording media are exposed to generate frames of imagery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.