Device and method for manipulation of thermal response in a modulator
US7554714B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2005 |
| Grant date | Jun 30, 2009 |
| Priority date | — |
| Expiry date | Feb 4, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/0866
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
By varying the spacing between two surfaces, one of which is disposed in front of the other, an interferometric modulator selectively creates constructive and/or destructive interference between light waves reflecting off the two surfaces. The desired spacing can be achieved by deforming one or both surfaces. A heating element associated with a particular surface causes the deformation by heating the material that forms one or both of the surfaces. By varying the amount of applied heat, the amount of deformation is varied, thus allowing the distance between the surfaces to be controlled and thereby creating constructive and/or destructive interference as desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.