Pupil relay system
US12196966B2 · kind B2 · utility
0Cited by
4References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 21, 2020 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Aug 3, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/015
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser scanning projection system for use in illuminating a waveguide of an augmented reality or virtual reality headset is disclosed. The laser scanning projection system comprises a laser source configured to emit light towards a pair of polarising beam splitters. The polarising beam splitters direct light onto a plurality of mirrors through a plurality of quarter waveplates. The laser scanning projection system further comprises a waveguide having an input configured to receive the light such that the exit pupil formed at the laser scanner is relayed into the waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.