Dual-headed, adjustable optoelectronic image reader
US6998631B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2004 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Mar 1, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2511/512
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An optoelectronic sensing device detects two contrasting marks arranged next to each other along two reading tracks on a moving web. An optical head is arranged above each reading track. Each head has a lighting source and a lens, by means of which the contrast marks are imaged on an associated light receiver. Information from the contrast mark is obtained from the output signal of the light receiver. An adjustable connector joins two substantially identical optical heads to each other so that their respective lenses are arranged asymmetrically in the associated optical head and are situated in immediate proximity to each other, which permits adjustment of the device for the smallest possible track spacings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.