Learn more about light, reflection curves, optical brighteners, and more.     Illuminants Electro magnetic radiation in the wavelength range from 380 nm to 730 nm is seen as light by our eyes. Low wavelengths show as blue light. Then the spectrum continues from green, yellow, orange to red. UV radiation is located in the range below 380 nm; the range above 730 nm is called infrared radiation. The visual impression of a colored body changes by the composition of the incoming light. ...

Posted July 22, 2021 by X-Rite Color

To control color, you need to be able to compare very small differences, determine their impact, and understand how to address that impact. But words alone can’t give us enough information to precisely describe colors, or the difference between them. In this three-part series we will look at the color science behind tolerancing – the color analysis that paved the way, the role of light, and the difference between a color space and a color model – so you can make ...

Posted February 21, 2018 by Tim Mouw

Have you ever sent out a job that passed your inspection, only to have the customer reject it for out-of-tolerance color? You recheck the data and the instrument says the color passed the agreed tolerance… why is the customer saying it doesn’t? We get a LOT of these conflicting measurement calls in technical support. The solution is simple – document a color control program that clearly defines how to assess color, then make sure everyone (including your customer) follow...

Posted September 08, 2017 by X-Rite Color

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