Photodichroic readout device using circularly polarized light
US3934234A · kind A · utility
2Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 5, 1974 |
| Grant date | Jan 20, 1976 |
| Priority date | — |
| Expiry date | Jul 5, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C13/041
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A unique photodichroic readout device composed of photodichroic material u which is passed a circularly polarized light beam that is horizontally or vertically polarized dependent upon the storage of information in the material. The beam is then passed to a beam splitter which segregates the horizontal polarized light and the vertical polarized light. The two individual beams pass to individual detectors whose output is coupled to a difference amplifier. The system also provides a method for selectively storing information within the photodichroic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.