4 ноября, 2015 
Pokraskin Most pigments that are part of any paint formulation are intended to provide visual effects — predominantly, color and opacity.
Color can be described as a visual sensation that is produced from the stimulation of the retina of the human eye by light in the visible region of the electromagnetic spectrum. The cones of the retina, comprised of three groups of sensory cells, are responsible for perceiving color, while rods in the retina are stimulated in accordance with the intensity of the light. If all wavelengths of incident daylight are reflected from an object, it appears white, and if all are absorbed by the object, it appears black. This is what happens with white and black pigments, respectively. In the case of colored pigments, a selected part of the spectrum is removed by interaction of light with pigments, and the rest reaches the retina, where the cones register this change and the color is perceived according to the wavelength of the reflected portion of the visible light. For example, a blue pigment appears so because it reflects the shorter blue wavelengths of the incident white light and absorbs all of the other wavelengths.
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