Optical reader for diffraction grating-based encoded optical identification elements
US7441703B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2004 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Jun 3, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2019/0629
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An optical reader system 7 for diffraction grating-based encoded microbeads (or bead reader system), comprises a reader box 100, which accepts a bead cell (or cuvette) 102 that holds the microbeads 8, having an embedded code therein. The reader box 100 interfaces along lines 103 with a known computer system 104. The reader box 100 interfaces with a stage position controller 112 and the controller 112 interfaces along a line 115 with the computer system 104 and a manual control device (or joy stick) 116 along a line 117. The reader interrogates the microbeads to determine the embedded code and/or the fluorescence level on the beads. The reader provides information similar to a bead flow cytometer but in a planar format, i.e., a virtual cytometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.