Nanovoided graded-index optical elements, optical arrays, and methods of forming the same
US11448798B1 · kind B1 · utility
2Cited by
38References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2019 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Oct 4, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/022
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A graded-index optical element may include a nanovoided material including a first surface and a second surface opposite the first surface. The nanovoided material may be transparent between the first surface and the second surface. Additionally, the nanovoided material may have a predefined change in effective refractive index in at least one axis due to a change in at least one of nanovoid size or nanovoid distribution along the at least one axis. Various other elements, devices, systems, materials, and methods are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.