Optical image scanner with lens arrays that are non-perpendicular to the image being scanned
US6760139B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 25, 2001 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Apr 25, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B26/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical image scanner uses one or more reflecting surfaces to provide a light path through a lens array, where the optical path through the lens array is non-perpendicular to the surface of the image being scanned. As a result, the distance, from the surface where an image is being scanned, to the opposite outer surface of the scanner, is relatively short compared to scanners in which lens arrays are perpendicular to the image being scanned. An illumination source may be provided as part of an assembly that includes the lens array. Alternatively, the assembly may be integrated with a video display, or placed adjacent to a video display, and the video display may be used as the illumination source. The assembly may optionally monitor the intensity and color of the illumination source during scanning. The assembly may also optionally image the display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.