Optical shutter using magneto-optical materials
US5050968A · kind A · utility
19Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 1990 |
| Grant date | Sep 24, 1991 |
| Priority date | — |
| Expiry date | Mar 5, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/09
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Optical shutters having a magneto-optical material confined in a holding plate which allows a light to pass through the magneto-optical material. When the intensity of a magnetic field applied to the magneto-optical material is changed, an amount of a polarized light passing through the magneto-optical material is adjusted. A magnetic head with a coil has open ends which are disposed to face the outer surface of a shutter member. A plurality of such optical shutters are arranged to form an optical shutter array.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.