Method of reducing optical artifacts
US12164134B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2023 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Sep 22, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of reducing optical artifacts includes injecting a light beam generated by an illumination source into a polarizing beam splitter (PBS), reflecting a spatially defined portion of the light beam from a display panel, reflecting, at an interface in the PBS, the spatially defined portion of the light beam towards a projector lens, passing at least a portion of the spatially defined portion of the light beam through a circular polarizer disposed between the PBS and the projector lens, reflecting, by one or more elements of the projector lens, a return portion of the spatially defined portion of the light beam, and attenuating, at the circular polarizer, the return portion of the spatially defined portion of the light beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.