Varifocal waveguide display using tunable lens
US10914953B1 · kind B1 · utility
7Cited by
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21Claims
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Assignee
Inventors
Key dates
| Filing date | Jun 11, 2018 |
| Grant date | Feb 9, 2021 |
| Priority date | — |
| Expiry date | Jan 1, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/332
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A tunable waveguide display includes a source waveguide, a first tunable lens (FTL), an output waveguide, and a second tunable lens (STL). The source waveguide receives light, expands the light in a first dimension, and outputs the expanded light. The FTL adjusts a wavefront of the expanded light to form adjusted light. The output waveguide receives the adjusted light, expands the adjusted light in a second dimension to form image light, and outputs the image light. The STL adjusts a wavefront of the image light. The FTL and the STL control an image plane of the image light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.