Apparatus for maintaining image digitization in parallel optical digital processing systems
US3935441A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 2, 1974 |
| Grant date | Jan 27, 1976 |
| Priority date | — |
| Expiry date | Jan 2, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C13/047
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus for maintaining image definition and intensity in optical image processing operations. The apparatus comprises an improved photosensitive device responsive to an applied radiation image pattern for establishing internal electric fields each of which are representative of the intensity of different portions of the applied pattern. Associated with the photosensitive device are a plurality of transparent, conductive targets or conductors aligned to receive the different portions of the applied radiation pattern and to establish discrete internal fields in the device which are uniform over the area of each target notwithstanding any non-uniformities that might exist in the intensity distribution of any of the portions of the applied pattern. The apparatus is especially suitable for use in conjunction with parallel optical digital processing systems in which digital data is represented by an array of radiation image bits of differing intensity and is directed through an optical circuit to be processed in a desired manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.