Electrostatic probe device and method of manufacturing such a device
US4389610A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 1980 |
| Grant date | Jun 21, 1983 |
| Priority date | — |
| Expiry date | Nov 28, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/031
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In electrophotography or electroradiography charge images are formed which are customarily made visible by means of toners. The invention provides an electrostatic probe device for the electric scanning of charge images. The device, therefore, is particularly suitable for use in conjunction with digital image processing and storage. The device in accordance with the invention comprises a large number of electrode tracks which are provided on a flat substrate and on which there is provided an insulating layer on which a conductive layer is provided. The latter layer comprises cut-outs at the area of the electrostatic probe electrode heads. This device is suitable for the simultaneous measurement of the charge distribution at some hundreds of measuring locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.