Color measuring head and scanner device equipped therewith
US7821639B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2007 |
| Grant date | Oct 26, 2010 |
| Priority date | — |
| Expiry date | Sep 24, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/00058
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scanner device includes a color measuring, a support surface for a measured object and a drive unit for moving the measuring head across the support surface and for adjusting the height of the measuring head in a direction perpendicular to the support surface. The measuring head is equipped with an illuminating channel and a collection channel. The illuminating channel has a light source and optical means for illuminating the measured object at a measurement site at a mean angle of incidence of 45°. The collection channel has optical means for capturing light emanating from the measured object at the measurement site at a mean collection angle of 0° and coupling it into a light guide, which directs the captured light to a wavelength-selective photoelectric transformer, which resolves it into a number of wavelength ranges and generates an electric measurement signal corresponding to each wavelength range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.