Multi-stable optical system
US4272157A · kind A · utility
7Cited by
8References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 28, 1979 |
| Grant date | Jun 9, 1981 |
| Priority date | — |
| Expiry date | Mar 28, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multi-stable optical device and system which utilizes an active optical element such as a spatial light modulator (SLM) in a feedback path configuration. The elementary system consists of a pair of image element (pixels) on the SLM whose input and outputs are coupled to each other by purely optical means. In another arrangement, multi-stable performance is achieved by optical path geometry defining a single pixel which performs in conjunction with a feedback path. Analysis is provided identifying the equilibrium states of the system as well as those equilibrium states which are stable in nature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.