Eyewear with pinhole and slit cameras
US12332451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2024 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Jun 4, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A head mounted display system can include a camera, at least one waveguide, at least one coupling optical element that is configured such that light is coupled into the waveguide(s) and guided therein, and at least one out-coupling element. The at least one out-coupling element can be configured to couple light that is guided within the waveguide(s) out of the waveguide(s) and direct the light to the camera. The at least one coupling element may include a diffractive optical element having optical power. Additionally or alternatively, the at least one coupling optical element may have a coupling area, for coupling light into the waveguide(s), the coupling area having an average thickness in a range from 0.1 to 3 millimeters across and/or may have a pinhole sized and/or slit shaped coupling area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.