Photocathode
US6908355B2 · kind B2 · utility
16Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2002 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | Nov 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J40/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron-emitting photocathode includes a base and a large number of projecting elements such as microscopic wires projecting from a surface of the base. The photocathode has high quantum efficiency, and hence can be used as the emitting element in a sensitive phototube.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.