Color The science of color is sometimes called chromatics, colorimetry, or simply color science. It includes the study of the perception of color by the human eye and brain, the origin of color in materials, color theory in art, and the physics of electromagnetic radiation in the visible range (that is, what is commonly referred to simply as "light"). Electromagnetic radiation is characterized by its wavelength (or frequency) and its intensity. When the wavelength is within the visible spectrum (the range of wavelengths humans can perceive, approximately from 390 nm to 700 nm), it is known as "visible light". Most light
Colour sorter likely to fluoresce. In mining sorting industry, It is also called sensor-based sorting technology. Use Optical Color (CCD Color Camera) combineX-Ray Sorting Technology and NIR (Near Infrared Spectrometry) to pick out the impurity of ore, minerals, stone and sand products, separate ore into two or more categories. In the recycling industry, colour sorters can distinguish between coloured and colourless PET and coloured and colourless HDPE flakes, as well as being able to separate flakes by colour before re-granulation. Plastic colour separators are used to separate mixed-colour plastic flakes or granules. Plastic type separators (Sensor-based sorting technology) are used to separate