Barcode reading device with photodetector assembly including a lenticular array
US6520415B1 · kind B1 · utility
3Cited by
5References
53Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2000 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Feb 10, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10702
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A code scanner includes a laser beam generating a flying spot across a read axis of a code. The flying spot generates modulated reflected illumination that is detected by a photodetector assembly. The photodetector assembly includes a lenticular array with a plurality of lens elements and a mask with a plurality of horizontal mask space regions bounded by opaque regions to block a portion of ambient illumination and improve a signal to noise ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.