Photoconductor-based electrical switch
US5912455A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 7, 1997 |
| Grant date | Jun 15, 1999 |
| Priority date | — |
| Expiry date | May 7, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F30/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A photoconductor-based electrical switch comprises an element made of photoconductor material possessing two electrodes located. on either side of an active zone, at least one light source emitting at least one light beam illuminating the active zone, the beam having a wavelength corresponding to a level of photon energy lower than the bandgap energy of the photoconductor material, the intensity of the light beam being such that there is a combination of the energy of at least two photons in the photoconductor material, in such a way that a mechanism of two-photon absorption in the photoconductor material contributes to the creation of carriers enabling the photoconductor material to be made conductive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.