Gradient refractive index optical blocks for virtual reality imaging applications
US10768344B2 · kind B2 · utility
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1References
11Claims
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Key dates
| Filing date | May 7, 2018 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Sep 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0147
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A virtual reality headset incorporating gradient refractive index (GRIN) lenses within the optical blocks thereof. Optical blocks of varying size and position are used. GRIN lenses are fabricated to fit within the optical block and are shaped to possess desired application-specific characteristics such as having one or more diffractive surfaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.