Far field imaging
US4205228A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 3, 1978 |
| Grant date | May 27, 1980 |
| Priority date | — |
| Expiry date | Jul 3, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01T1/2914
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
For imaging distant radiation sources, a collimator is rotated about its own axis while that axis moves about a fixed axis pointing toward the overall field of view of the collimator. Radiation from the source will be transmitted through the collimator during each of its revolutions about its axis. The angular position of the collimator about its axis, and the angular position of the collimator axis about the fixed axis, at the time of each such transmission, define a response plane. Computerized data reduction is used to find the intersection of the response planes, which will be a line pointing precisely at the source. For multiple sources, there will be a corresponding number of intersections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.