Automatic data collection apparatus and method
US9400906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2014 |
| Grant date | Jul 26, 2016 |
| Priority date | — |
| Expiry date | Aug 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2207/1011
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Machine-readable symbol readers and/or scan engines may subtractively impose an aiming pattern on an illumination field produced by a source of light or illumination. An optical component with a mask or filter are interposed in an optical path extending outwardly from the source of light or illumination. The mask or filter may have a defined shape or configuration to subtractively produce an aiming pattern with a desired shape or configuration. The mask or filter may, or may not, be wavelength selective or spectral. A wavelength selective mask or filter may produce an aiming pattern of a defined color, different from a color of an illumination field. Such may eliminate the need for a separate, distinct source of light or illumination for an aiming beam subsystem. The described structures and methods may reduce size, reduce parts count, and/or simplify manufacture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.