Solid state image wavelength converter
US7196390B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1999 |
| Grant date | Mar 27, 2007 |
| Priority date | — |
| Expiry date | Jun 26, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for encoding information that is encoded in spatial variations of the intensity of light (24) of a first wave-length into light of a second wavelength, the method comprising: generating a first density distribution of electrons homologous with the spatial variations in intensity of the first wavelength light; generating a second additional electron density homologous with the first electron density distribution; trapping electrons from the first and second electron density distributions in a trapping region (34) to generate an electric field homologous with the density distributions in a material (36) that modulates a characteristic of light (22) that passes therethrough responsive to an electric field (46) therein; and transmitting the second wavelength light (22) through the modulating material (36) thereby modulating the second wavelength light in response to the electric field and encoding it with the information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.