Optical scanning device
US6211990A · kind A · utility
1Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Jun 16, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10613
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser bar code scanner employing a retroreflector in combination with a rotating polygon reflector to increase scan width and reduce curvature in the scanning beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.