Color light color additive method

1. The three primary colors of colored light can form various colors in different proportions in vision, and the color light that can be mixed out of other two primary color lights is called primary color light. The three primary colors of light are green and blue. The specific wavelength of the three shades specified by the International Standard Lighting Committee (CIE) in 1931 is:
Red light (R) 700nm
Green light (G) 546.1nm
Blue light (B) 435.8nm
Various primary colors in nature can be mixed by a certain proportion of these three primary colors of light.
2, color light additive method According to the red, green, and blue primary color additive color mixing principle to generate new color light method is color light additive method.
In the area where blue light and green light overlap, the color is cyan, the overlap of blue light and red light is magenta light, and the overlap of green light and red light is yellow. The mixing of red and green light is used here to explain the principle of color light addition.
We use two shades of light: one is the green light obtained by passing through the green filter, and the other is the red light obtained by passing through the red filter. The yellow light can be obtained by mixing these two colors of light. This is because the red and green systems in the eyes feel the same stimulus and feel yellow. It can be seen that not only the monochromatic light of a specific wavelength can stimulate the sense system to produce a yellow feeling, but also a sense of yellow can be produced when the sense values ​​of red sense and green sense are roughly equal. When different wavelengths of light are mixed, the spectral frequencies add up to produce a new, brighter shade of light. Therefore, the color light mixing is called additive color mixing. The regularity of color light additive color mixing can be expressed by the following figure.
Using the color equation can be expressed as:
Red + Green = Yellow Green + Blue = Blue Red + Blue = Magenta + Green + Blue = White

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