Colour measurement device and measurement process for the device
US7528955B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2006 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | May 12, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A color measurement device includes a color measurement channel (20,30) and a control (C), which forms color measurement values from the measurement signals of the color measurement channel and from stored white calibration data. It further includes correction means in order to calculate or correct the color measurement values depending on different distances (a) and/or angles (α) to the measurement object. Because of the special measurement value correction, the color measurement device is especially suited for contactless measurement applications with variable distances and angle orientations relative to the measurement object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.