Instrumentation to Correlate to the Visual 3

BYK-mac measuring sample. Photo Courtesy of BYK-Gardner.

BYK-mac measuring sample.
Photo Courtesy of BYK-Gardner.

In the color and appearance measurement industry we like to use the phrase “correlate to the visual” when describing measurements. This means that instruments that measure appearance properties should give data that supports what we see with our eyes. More…

Understanding CIE Illuminants and Observers 12

A standard illuminant and observer are required in order to obtain color readings. Photo courtesy of BYK-Gardner.

A standard illuminant and observer are required in order to obtain color readings.
Photo courtesy of BYK-Gardner.

Color instruments and software packages all contain references to CIE standard illuminants and observers. What do these terms mean and how are they used in practical color evaluations? The CIE (from the French Commission Internationale de L’Eclairage), or International Commission on Illumination, is the worldwide authority on how we see and measure color. BYK-Gardner uses many of these standards in its instruments and available software packages. This paper will give some easy to understand explanations of these standards and how they should be used.

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