Integrated thermal imaging system
US5091646A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 29, 1990 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | May 29, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2005/283
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A totally integrated thermal imaging system has a dewar housing including imaging optics, a scanning mirror and a curved detector array. The imaging optics constitute a meniscus lens and a spherical focusing mirror. The scanning mirror scans the image, and the spherical mirror focuses the scanned image onto the detector array. The meniscus lens advantageously corrects aberrations. A detector support provides access for cryogenic cooling of the detector, and individual cold shielding of the detector elements is made possible by the telecentricity of the optics. Processing electronics, at least a portion of which may also be disposed on the detector support, process the detector signals to display an image. The integrated structure advantageously eliminates any need for separate scanner, imager, detector dewar and electronics modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.