OPTICAL SYSTEMS WITH AUTHENTICATION AND DATA PROTECTION CAPACITY
Patent Information
- Application Number
- DE602021031099
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2021-02-09
- Filing Date
- 2021-03-01
- Publication Date
- 2025-05-21
- Estimated Expiration
- 2041-03-01
AI Technical Summary
Designing optical systems for displays in devices like virtual and augmented reality headsets poses challenges due to the need for unobtrusive, aesthetically pleasing components that also provide optimal optical performance and address authentication and privacy concerns.
The optical system incorporates a waveguide with an input coupler to direct image light from a display module towards an eye box, while also passing real-world light. This system includes a first output coupler for visible wavelengths to direct image light to the eye box and a second output coupler for near-infrared wavelengths to convey authentication codes or privacy patterns to the external environment.
This solution enables the creation of compact, aesthetically pleasing near-eye displays that maintain high optical performance while providing secure authentication and privacy features, such as preventing facial recognition by external cameras.