Check imaging illumination with focus/defocus and fibre optic light guide means
US5313070A · kind A · utility
20Cited by
10References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 1, 1992 |
| Grant date | May 17, 1994 |
| Priority date | — |
| Expiry date | Jan 1, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2007/10485
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A check Sorter-Imager-Processor with two (or more) imaging sites, each lit by a beam through a fibre-optic array, with a lens focusing the beam on each array such that a shift in lens-focus reduces output light from the array--the two sites being thus "matched" in light-intensity by merely focus-adjusting these lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.