Magneto-optic chip with gray-scale capability
US4661809A · kind A · utility
31Cited by
8References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1985 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Jan 11, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Methods of operation and details of chip design to realize gray-scale capability in magneto-optic chips. Individual pixels are operated in three states by the addition of a stripped state to the usual stable magnetized states in either direction. Varying thicknesses of film are employed along with stacked identically patterend chips operated in tandem. Pixel divisions are divided into individually-addressible areas of differing sizes which can be operated in different combinations to provide varying levels of brightness through each pixel position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.