Optical element and system using the same
US7343069B2 · kind B2 · utility
2Cited by
28References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2007 |
| Grant date | Mar 11, 2008 |
| Priority date | — |
| Expiry date | May 18, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/0944
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical element may include a first diffractive structure having a radially symmetric amplitude function and a second diffractive structure having a phase function. The second diffractive structure may serve as a vortex lens. A system employing the optical element may include a light source and/or a detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.