Optical systems with waveguide deformation mitigation structures
US12360373B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2022 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Jan 27, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0174
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display system may include a waveguide and an input coupling prism. The waveguide may have a lateral surface with a deformed region. The prism may couple the light into the waveguide at an angle whereby the light first reflects off the deformed region. The display module may include a display panel that provides the light with planar wavefronts. The display module may include a deformation mitigation structure that distorts the planar wavefronts to produce non-planar wavefronts. The shape of the non-planar wavefronts may be selected to reverse distortion to the wavefronts of the light produced by the first reflection of the light off the deformed region of the lateral surface. This may serve to mitigate distortion in the light produced by the deformed region of the lateral surface and may serve to maximize the sharpness images in the image light provided to an eye box.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.