Emitting and focusing apparatus, methods, and systems
US7872812B2 · kind B2 · utility
16Cited by
44References
53Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2008 |
| Grant date | Jan 18, 2011 |
| Priority date | — |
| Expiry date | Feb 15, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/365
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Apparatus, methods, and systems provide emitting, field-adjusting, and focusing of electromagnetic energy. In some approaches the field-adjusting includes providing an extended depth of field greater than a nominal depth of field. In some approaches the field-adjusting includes field-adjusting with a transformation medium, where the transformation medium may include an artificially-structured material such as a metamaterial.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.