Retro-reflective multiple-X optical scanning system
US4018504A · kind A · utility
10Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1975 |
| Grant date | Apr 19, 1977 |
| Priority date | — |
| Expiry date | May 2, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Optical scanning apparatus for scanning and sensing information contained on a label-bearing article includes a light source, a rotatable member having a reflective surface, optical means for directing light from the source to the reflective surface and optical means for directing light reflected from the reflective surface to form a scanning pattern on a predetermined plane; the scanning pattern being comprised of a plurality of segments together forming at least one pair of overlapping X-shaped traces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.