Infrared imaging device using a pyroelectric image tube
US4191967A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1978 |
| Grant date | Mar 4, 1980 |
| Priority date | — |
| Expiry date | Jan 6, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/23
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An infrared imaging device enabling operation in the panning mode with a very high sensitivity and the facility of viewing a desired part of the observed field. A pyroelectric imaging tube is shifted relative to the observed scene and the infrared image on the target is read in a line by line scan the direction of the line being perpendicular to that in which the image is shifted. The shift takes place at a speed corresponding to a whole number R of line intervals in the course of one image frame scan comprising n=KR lines, with the result that each point is examined K times in the course of K successive frame periods; the video signal is accordingly processed to perform K successive integrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.