In everyday life, our eyes are exposed to electromagnetic waves of a wide range of frequencies through reflection, penetration, and absorption of light. The brain then interprets these waves, creating the colorful world we see around us. Interestingly, from a ‘physics’ point of view, ‘light’ is actually colorless!

How Are Colors Produced?

Cone cells in the human eye are sensitive to a specific portion of the electromagnetic spectrum. The wavelengths in this segment are called "visible light", which can be processed by the human brain to become the colors that we see. The process of color conversion (“color response”) by the photoreceptor cells of the human eye varies from person to person, resulting in slight differences in the degree to which each person perceives color and light. As a result, each person will also describe the colors that they see somewhat differently.

How Were Colors Standardized?

In 1931, the International Commission on Illumination (CIE) first created the CIE 1931 Color Space to quantify color perception. The CIE 1931 Color Space chromaticity diagram was developed by defining the theoretical three primary colors X, Y, and Z as perceived by the human eye. To address certain flaws in how the CIE 1931 chromaticity diagram calculates color difference, the CIE 1976 Color Space was developed in 1976. Both color space standards continue to be used to this day.

How to Measure Standard Color and Brightness?

Chroma 2D Color Analyzer 71803 Series is equipped with a high-resolution scientific-grade camera and uses Thermoelectrically Cooled (TEC) CMOS with precision optical components and circuit design to provide accurate, fast and highly repeatable measurements. Combined with the CIE matching and ND filters, the analyzers produce measurement results that closely correspond with real human perception, suitable for measuring the chromaticity, luminance, contrast, uniformity and correlated color temperature (CCT) of various kinds of displays.

The 71803 series offers complete control and analysis software required for optical measurement, with intuitive setting and measurement control as well as detailed image data evaluation and analysis, including camera operation parameters, exposure time, and pixel binning. CIE chromaticity diagrams for color analysis and real color simulation functionality are also provided. Users can manually calibrate the instruments to factory standards with the calibration function.

Chroma 71803 can accurately measure the optical color performance of TVs, flat panels, monitors, and AR/VR. With its optical measurement software, it can also detect abnormalities such as die defects, chromatic aberration, and color shift of each light-emitting element. To learn more about our optical inspection products and solutions, please visit the Chroma website and leave your request and contact information. We will be happy to assist you!

Please check out our video for more details on the Chroma 71803 Series 2D Color Analyzer complete test solution specs and applications: