Image reader incorporated in electro-developing type camera and electro-developing recording medium used therein
US5913077A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Oct 16, 1996 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | Oct 16, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B17/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image reader to optically and electronically read a developed image of an electro-developing recording medium, where the electro-developing recording medium has a reference zone exhibiting a substantially-constant transparency. An optical sensor senses light rays passing through the reference zone, and converts the sensed light rays into optical data. Correction data is prepared based on the optical data. Image data is read from the developed image of the electro-developing recording medium according to the correction data. The correction data is updated whenever the image data is read from the developed image of the electro-developing recording medium. The electro-developing recording medium includes an electrostatic information recording medium and an electric charge keeping medium, and the electric charge keeping medium has a reference zone exhibiting a constant transparency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.