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色觉是人们的一种主观感觉,有关色觉的理论很多,人们所公认的是相格—黑姆霍兹三原色学说,三原色学说认为视网膜上有三种视锥细胞含有三种分别对红、绿、兰色光敏感的视色素,每一种视色素只能被一种基本色光引起光化学反应,各种彩色的感觉就是不同有色光线对上述三种锥细胞不同程度刺激的联合效应,如果缺少某种视锥或视色素就为色盲。
Color perception is a kind of subjective feeling of people. There are many theories about color vision. People recognize that they are the same - the theory of the three primary colors of Helmholtz. Three primary colors think that there are three types of cones in the retina that contain three types of red, green and blue Light-sensitive visual pigment, each visual pigment can only be a basic color light caused by photochemical reactions, a variety of colored feeling is different colored light on the above three kinds of cones with varying degrees of stimulation of the combined effect, if the lack of a cone Or visual pigment on the color blindness.