Optical hybrid lens and method for producing an optical hybrid lens
US10473948B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2016 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Aug 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/1895
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical hybrid lens comprises a substrate having a first surface and a second surface opposite the first surface. A sub-wavelength grating lens is disposed on the first surface and comprises a plurality of posts. The plurality of posts is arranged on the first surface and the posts extend from the first surface. A refractive lens is arranged on the sub-wavelength grating lens at least partly enclosing the plurality of posts. Alternatively, the refractive lens is arranged on the second surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.