Method and system for forming birefringent voxels
US12183378B2 · kind B2 · utility
Assignee
Inventors
- Masaaki SAKAKURA
- Rokas Drevinskas
- Daniel Jonathan Finchley Cletheroe
- Richard John Black
- Austin Donnelly
- Timothy John Deegan
- James Hilton Clegg
- Philip Athelstan Wainman
- Patrick Neil Anderson
- Teodora Ilieva
- Thomas Torsten Dr Winkler
- Pablo Rafael Andreas Wilke Berenguer
- Erika Blancada Aranas
- Bridgette Rosanna Doris Cooper
- Ioan Alexandru Stefanovici
Key dates
| Filing date | Mar 31, 2023 |
| Grant date | Dec 31, 2024 |
| Priority date | — |
| Expiry date | Mar 31, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2007/0009
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for forming birefringent voxels comprises simultaneously generating a first seed pulse and a first data pulse. The first seed pulse and the first data pulse are spatially-separated laser pulses having different amplitudes. The first seed pulse is focused at a first seed location, and the data pulse is focused at a first data location. The first seed location and the first data location are separated by a predetermined distance along a scan path, with the first seed location being ahead of the first data location. Subsequently, a second seed pulse and a second data pulse are generated, and focused at a second seed location and second data location, respectively. The second seed and data locations are separated by the predetermined distance. The second data location is the same as the first seed location, resulting in formation of a birefringent voxel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.