Pickup tube target
US3952222A · kind A · utility
1Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1955 |
| Grant date | Apr 20, 1976 |
| Priority date | — |
| Expiry date | Aug 10, 1975 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/456
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
1. A television camera tube comprising an elongated envelope, an electron gun in one end of said envelope for producing an electron beam, a target electrode in the other end of said envelope and in the path of said beam, said target electrode comprising a transparent conductive coating, a N-type photoconductor on said coating, a P-type photoconductor on said N-type photoconductor, another N-type photoconductor on said P-type photoconductor, a rectifying junction formed between each adjacent pair of said photoconductors and means for applying a reverse bias across at least one of said junctions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.