Varifocal optical assembly providing astigmatism compensation
US11243448B2 · kind B2 · utility
1Cited by
1References
17Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 3, 2020 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Feb 3, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/122
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An astigmatism compensation optical assembly includes a first liquid crystal layer disposed between opposing substrates. The astigmatism compensation optical assembly also includes a first electrode pattern disposed on at least one substrate. The first electrode pattern includes a set of parallel conductors each having a length proportional to the longest dimension of the clear aperture of the liquid crystal lens, and the parallel conductors are configured to generate a voltage distribution within the liquid crystal layer that results in the liquid crystal layer exhibiting cylindrical focal power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.