Optical see through (OST) near eye display (NED) system integrating ophthalmic correction
US12140759B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2020 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | May 28, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0187
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical see-through (OST) near-eye display (NED) system, integrating ophthalmic correction for an eye of a user, includes a partially transmissive partially reflective lens, including an inner surface having an inner surface radius of curvature exhibiting a first optical power. An outer surface has an outer surface radius of curvature exhibiting a second optical power. The lens is faces the eye to transmit incoming light of an outward scene to the eye. An electro-optical unit optically couples with the lens, and includes a light display projecting a light beam image onto the inner surface, to reflect the light beam image toward the eye. The electro-optical unit is located at a user's glabellar region. The first optical power provides ophthalmic correction with respect to the reflected light beam image. The second optical power is configured to provide ophthalmic correction with respect to transmitted incoming light from the outward scene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.