Multiple Color Matching Function 2D Colorimetry

In 1931, the International Commission on Illumination (CIE) introduced the first standardized model for describing human color perception by a “standard observer”. Almost 100 years later, we are still relying on this standard in display metrology. However, new display technologies pose challenges. If measured and calibrated based on the same CIE 1931 2° Color Matching Function (CMF), various display types will show different appearance to the observer. Display manufacturers therefore start to work with different CMFs such as the CIE 2015 observer or even customer-defined CMF functions in order to achieve good color matching across different display technologies.

The LumiTop devices from Instrument Systems are spectrometrically enhanced 2D colorimeters which allow to switch between different CMF functions easily and without the need to apply any hardware changes. This enables display manufacturers to compare different CMF functions and even acquire images with multiple CMFs in parallel.