Apparatus for extraction of IR from illumination for check processor
US5859726A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1996 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Sep 9, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K2007/10485
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of processing documents involving: transporting the documents at high speed unidirectionally and without pause along a prescribed transport path past at least one image-lift site; scanning the entirety of respective document faces at the sites with illumination from a light-source; providing a light-guide along a path between the light-source and the sites; providing an energy-shaping gate, disposed at each of the sites and acting to channel the imaging illumination energy there; and providing a heat-dissipation stage disposed operatively adjacent the light source and acting to extract infra-red energy therefrom and dissipate it so as to shield the sites; this heat-dissipation stage comprising an infra-red extraction unit arranged and adapted to remove a substantial part of the infra-red energy projected along a prescribed beam-path from a high-intensity spectral source; the extraction unit comprising: a selective reflector interrupting the beam path and adapted to divert infra-red energy as an infra-red beam along a second path; and an associated infra-red dissipation unit including multi-blade surfaces; disposed within an enclosure, adapted to receive the infra-red beams…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.