Light and Colors
When we see things, we need three elements. First of all, it is the“light (light source)”that illuminates the object, the“object” that we want to see, and the“eye (vision)” that we use to see. Only by combining these three elements can we observe the“color”. Usually, we can see the color unconsciously. How is it seen? We need to understand how we see things here, and we will explain some basic knowledge about the bone beige, and then explain various basic“primary colors” shown by their combination.
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Visual Rays and Spectrum
"Light" is a kind of electromagnetic wave like a wave to rise and fall. The length from one peak to the next peak is called "wavelength", and there are many kinds of electromagnetic waves according to different wavelengths. In the electromagnetic wave, we can see the range that can experience the color called "visible light". Light that cannot distinguish colors like sunlight is called "white light". White light contains light of various colors, which is separated according to the wavelength and called "beam split". Through the floor mirror (polyhedra made of transparent medium such as glass or crystal ), the white light separates out the red, orange, yellow, green, cyan, blue and purple lights. This color band with continuous changing is called "light harmony".
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The Three Primary Colors of Light and Color
There are three primary colors in light and color. They have nothing to do with the nature of light and color, which are related to how people identify colors. The three primary colors are divided into "three primary colors of light" and "three primary colors of color", which are different in the three basic colors.
3 Primary Colors of Light
Red, green and blue are the three primary colors of light (the three primary colors of colored light/ the three primary colors of primary color of light ),and their initials are taken to write“RGB”. Luminous bodies such as TVs and displays show famous colors by using these three primary colors. Green and blue are mixed together as blue, red and blue are mixed together as magenta, and red and green are mixed together is yellow. Other colors are also different from the share of the three primary colors. The brightness will be enhanced by mixing the color light , which is called "addition colour mixture". When“R”,“G”and“B”are mixed with 100% intensity, the white light will appear.
3 Primary Colors of Color
Blue, magenta, and yellow are the three primary colors of color(the three primary colors of pigment /the three primary colors of object color. Their respective initials are taken to have "CMY" and black is compared as the background of the light as follows: the three primary colors of ligh are opposite, and "three primary colors of color" are printed under a white background like paper. After magenta and yellow are mixed, it is red. After yellow and cyan are mixed, it is green. After magenta and cyan are mixed, it is blue, and other colors are also obtained according to the different proportions of the three primary colors. The brightness of the pigment will decrease after mixing, so it is called "subtractive colour mixture". "C", "M", and "Y" will be black after they are mixed with 100% concentration.
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