Micro-actuated adaptive diffractive composites
US6975459B2 · kind B2 · utility
4Cited by
2References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 12, 2003 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Mar 12, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2225/24
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A volume diffractive composite is disclosed for providing illumination at a first output angle. The volume diffractive composite comprises a first plurality of grating elements that are mutually spaced from another in a first position with a first spacing period along a first plane, and an actuation unit for changing at least one of the position or the spacing period of the first plurality of grating elements to a second position or spacing period to provide illumination at a second output angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.