How do we distinguish colors? Detailed answer

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How do we distinguish colors? Detailed answer

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How do we distinguish colors?

Taking color photographs is a physical process. But the perception of color by a person is connected with his psyche.

The eyes receive some visual information (but do not "see" in the literal sense of the word), it is transmitted to the brain, which processes it, and only after that we are able to distinguish objects.

Although we "see" with our brain and distinguish colors with it, the eyes perform a very important and irreplaceable function. They perceive seven colors: red, orange, yellow, green, blue, indigo and violet. Some retinal receptors are irritated by twilight light, others are only irritated by bright light, and color vision is associated with them.

How does the eye distinguish colors? This is how the Yang-Helmholtz theory of color vision explains it. The eye contains three types of nerve cells that react respectively to red, green, blue-violet color.

Thus, if all three types of nerve cells receive the same stimulation, we see white. If the eye receives mainly green light, the cells responsible for the green part of the spectrum are excited more than others, and we see green. When the object is yellow, "green" and "red" cells are stimulated.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

What Chinese became a black American and then a gypsy?

In Blyakhin's story "The Red Devils" about the adventures of teenagers during the Civil War, one of the characters was a Chinese Yu-yu. In the silent film adaptation of 1923, due to difficult relations with China, he was replaced by black acrobat Tom Jackson. And in 1967, when there were difficult relations with both China and the United States, this hero in the film "The Elusive Avengers" reincarnated as Yashka the Gypsy.

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