Analyzing Color: 45/0 versus Sphere SPIN Color Instrumentation 4

In the color industry, there are two classes of instrumentation based on their geometry that are used to measure color: “45/0” and “Sphere”.

45/0 Color Instrument

A 45/0 color instrument is used in situations where we want to measure color the way our eye sees color. Gloss levels influence the way our eye sees color. A high gloss sample appears darker to our eye than a matte gloss sample with the same pigment concentration. A practical use for a 45/0 color instrument is to check color consistency of consumer products when appearance is a deciding factor in a product purchase.

45°circumferential illumination 0° viewing perpendicular to sample plane This simulates visual color evaluation by excluding the gloss. The advantage of circumferential illumination is to achieve more repeatable measurements results on directional and structured surfaces. Photo courtesy of BYK-Gardner.

45°circumferential illumination
0° viewing perpendicular to sample plane
This simulates visual color evaluation by excluding the gloss. The advantage of circumferential illumination is to achieve more repeatable measurements results on directional and structured surfaces.
Photo courtesy of BYK-Gardner.

So for a 45/0 color instrument,

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