Measurement system and scanning device for the photoelectric measurement of a measurement object pixel by pixel
US7671992B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 28, 2005 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Dec 29, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2003/468
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The measuring device comprises a lighting system, a photoelectric receiver unit and optical means. The lighting system applies light to image elements disposed in strip-shaped lighting regions (15) at a standardized angle of incidence range. The photoelectric receiver unit comprises several photoelectric line sensors (21) disposed parallel at a distance apart which are sensitized to different wavelength ranges by color filters (22) connected upstream. The optical means comprise linear optical arrays (31) which pick up the measurement light reflected by the image elements at a standardized range of angle of reflection and direct it to one of the respective line sensors (21). By means of optical screening and other structural features, cross-talk effects between adjacent image elements are largely reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.