Enhancement system for X-ray imaging
US4979201A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 1989 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | May 10, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B42/023
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An X-ray imaging system for obtaining a photographic image of the X-ray transmissivity of a body is disclosed. A source of X-rays is directable at the body, and an X-ray imaging subsystem is provided for receiving a pattern of X-rays transmitted through the body, including, in combination: a first X-ray-sensitive screen for converting the pattern of X-rays to a first pattern of light; a light-sensitive film adjacent the first X-ray sensitive screen for receiving the first pattern of light; a second X-ray sensitive screen for also converting the pattern of X-rays to the first pattern of light; an array of light detecting devices positioned to receive the first pattern of light from the second X-ray sensitive screen; means for storing electronic representations of the outputs of the array of light detecting devices; and light generating means responsive to the stored electronic representations for generating a second pattern of light which is directed at and received by the light-sensitive film. An image is formed on the light-sensitive film as a result of being exposed to said first and second patterns of light. The disclosed invention permits use of a standard type of film cassette…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.