Electronic devices with rearward-facing sensors
US12345882B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2023 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Jun 15, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/013
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A head-mounted device may have a housing with a frame that supports lenses. Each lens may have a positive bias lens element and a negative bias lens element. A waveguide may overlap the lens. During operation, images from the waveguide may be provided to an eye box through the negative bias lens element. An eye sensor such as a gaze tracking camera may operate through the negative bias lens element. The negative bias lens element may have a protruding portion through which the sensor operates, may have a surface facing the sensor that has a curved surface to provide a desired lens characteristic, may have a prism for helping to couple light from the eye box to the eye sensor, and/or may have other features to facilitate use of the eye sensor to monitor the eye of a user in the eye box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.