X-ray light valve based digital radiographic imaging systems
US7687792B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2007 |
| Grant date | Mar 30, 2010 |
| Priority date | — |
| Expiry date | Feb 23, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1352
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a digital x-ray radiographic imaging system. The system is based on a photoconductive detector and an electro-optic light modulator, where the photoconductive detector layer absorbs x-rays that have passed through an object to form an exposure of the object. The absorbed x-rays create a static optical image, which is stored in the electro-optic light modulator, allowing the capture of the optical image to continue over longer time. The optical image is digitized using a scanning system and an external light source. The image is then processed and stored by a computer. After the optical image is recorded, an erasing mechanism is used to reset the system before a new exposure is made.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.