Illuminator for a barcode scanner
US10803267B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2018 |
| Grant date | Oct 13, 2020 |
| Priority date | — |
| Expiry date | Dec 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10831
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An illuminator is provided, comprising a support frame arranged symmetrically around an optical axis of an optical sensor. The illuminator includes at least one light bar connected to the support frame. At least one light source is connected to the support frame, wherein each of the at least one light source is configured to direct light towards one of the opposing ends of one of the at least one light bar. The illuminator further includes a peripheral cover configured to receive light emitted from the front face of each of the at least one light bar. The peripheral cover is further configured to emit dark field illumination at a low incident angle with respect to a plane perpendicular to the optical axis and to emit bright field illumination at a high incident angle with respect to the plane perpendicular to the optical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.