Imaging by point absorption of radiation
US4085324A · kind A · utility
1Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1977 |
| Grant date | Apr 18, 1978 |
| Priority date | — |
| Expiry date | Jan 4, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B41/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Radiation is partially blocked by a pointlike absorber to establish a patterned flux whose intensity distribution is a function of source geometry. The flux strikes a receptor having a proper contrast to spatial frequency characteristic to map an image that is topologically equivalent to the source at an acceptable level of contrast and acuity. Apparatus is disclosed that is capable of practicing the invention in the X-ray and light regions of the electromagnetic spectrum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.