Optical element and system using the same
US7769258B2 · kind B2 · utility
0Cited by
32References
14Claims
0Family size
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Key dates
| Filing date | May 4, 2009 |
| Grant date | Aug 3, 2010 |
| Priority date | — |
| Expiry date | May 4, 2029 |
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.