Compact rim-mounted curved optical see-through lightguide based eyewear as mobile augmented reality display
US12352972B2 · kind B2 · utility
0Cited by
2References
23Claims
0Family size
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Key dates
| Filing date | Dec 13, 2019 |
| Grant date | Jul 8, 2025 |
| Priority date | — |
| Expiry date | Jul 12, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical device includes a lightguide and a display at a top of a head mountable frame. The display is oriented toward an eye-side of the optical device. A reflector is positioned at an eye-side of the optical device and directs light into the lightguide. This orientation and arrangement of components reduces light leaking out of the optical device. The lightguide includes curved first and second surfaces. The device reflects light through the curved first surface to a user eye for augmented reality vision. A head mountable frame supports the display, the reflector, and the lightguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.