Optical systems with multiple light engines for foveation
US12050322B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 9, 2023 |
| Grant date | Jul 30, 2024 |
| Priority date | — |
| Expiry date | Jan 9, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0178
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electronic device may provide foveated images at an eye box. The device may have a first display module that produces a low resolution portion of the image and a second display module that produces a high resolution portion of the image. A reflective input coupling prism may be mounted to a waveguide. A steering mirror may overlap the prism. The mirror may receive the high resolution portion through the waveguide and the prism. The mirror may reflect the high resolution portion back into the waveguide and may be adjusted to shift a location of the high resolution portion within the image. For example, the steering mirror may adjust the position of the high resolution portion to align with the gaze direction at the eye box. A reflective surface of the prism may reflect the low resolution portion of the image into the waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.