Optical identifier and system for reading same
US12142308B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2023 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Dec 20, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2227/05
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system includes a multiplexed optical identifier and a reader for the optical identifier. The multiplexed optical identifier includes an optical substrate, and a plurality of volume holograms in the optical substrate. The reader includes an illumination source and a camera. The illumination source is configured to direct light into the optical identifier to produce an image of a corresponding one of the volume holograms at the camera, and the camera is configured to capture the image, which is stored in a digital format by the system. The multiplexed optical identifier contains more than one code page, wherein each of the code pages is used for a different purpose.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.