Color Measurement Sensors
Dec 2010MAZeT GmbHRequest Info
JENA, Germany, Dec. 9, 2010 — The MMCS6 multiple color sensors for accurate and fast in-line color measurement have been released by Mazet GmbH. They bridge the gap between three-range sensors and spectral measurement devices and are based on the proven technologies of the compact and price-to-performance ratio-optimized semiconductor sensors with integrated interference filters. They can take a color measurement with seven spectral characteristics in the range of 380 to 780 nm, on the basis of spectral estimation.
The evaluation of a color in these sensors is based not on the colorimetric but on the radiometric level. The initial result is not the chromaticity coordinate but the spectrum of a color, which then can be used to calculate the chromaticity coordinate. The advantages of such measurements lie in the higher information density in terms of color measurement.
With RGB and true color sensors, the company offers semiconductor-based sensors with RGB or XYZ interference filters for fast and long-term stable color detection and absolute color measurement to the CIE/DIN5033 standard. For these sensors, in connection with white-light LEDs, accuracies in the color space that exceed the capacity of the human eye are possible. The accuracy is determined by the type of light source and the calibration of the sensors.
Recognition and measurement of metamerism effects can be filtered out, which cannot be done with RGB or XYZ sensors.
The spectral characteristics of the sensors are arranged in such a way that their border areas overlap, so that fewer gaps exist in the visible spectrum. Misleading interpretation of the colors is thus minimized, and measurement accuracy is increased. The sensors operate independently of the quality of the light sources. Through the spectral approximation of the measured color, color differences to which the human eye does not respond can be determined.