Image forming medium, method and apparatus
US4933926A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 1988 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Feb 11, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/937
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention provides an image forming medium and method, and a recording and playback apparatus in which signals can be recorded on the medium sequentially, similar to a magnetic tape or the like, or simultaneously two dimensionally, similar to a photographic film. The recording medium includes a laminate formed on the surface of a semiconductor substrate having a conductive layer on the undersurface thereof. The laminate is formed of an oxide film, a nitrided film, a photoconductive semiconductor layer and a transparent conductive layer. For recording, an optical image is directed onto the transparent conductive layer while applying a predetermined potential between the transparent conductive layer and the conductive layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.