One can see several colors

The human eye has only three types of cells that can sense color, and they are the most sensitive to red, green, and blue, corresponding to the wavelength length, medium and short.

When one wavelength of light hits the human eye, the three cells can perceive different levels of brightness and darkness.

For example, when red light enters the human eye, the red visual cells perceive the light intensity to be 100, the green visual cells perceive the light intensity to be 20, and the blue visual cells perceive the light intensity to be 5, then the human brain thinks that this is red light.

If yellow light enters the human eye, the red visual cells perceive the light intensity as 70, the green visual cells perceive the light intensity as 70, and the blue visual cells perceive the light intensity as 20, then the human brain thinks that this is yellow light.

But if 50% of the red light and 50% of the green light are mixed into the human eye, and it happens that the red visual cells feel that the light intensity is 70, the green visual cells feel the light intensity is 70, and the blue visual cells feel that the light intensity is 20, then the human brain also thinks that this is yellow light, although in fact, there is no yellow wavelength of light in it.

Nine of them, of course.

Red, orange, yellow, green, blue, indigo, purple, red, black.

Its three primary colors are: red, green, and blue.

They are not to be mixed.

So it can only be seven.

If they are absorbed by one object in their entirety, then they are black.

If it is not absorbed by the object, then it is white.

In fact, people can only see one color, which is black, and there is a refraction of light, so that there are all the colorful colors in front of them

Seven species, red, orange, yellow, green, blue, indigo.

There are seven kinds, namely red, orange, yellow, green, cyan, blue, and purple.

There are many kinds of colors, and they are all proportionally distributed by the three primary colors (red, green, and blue), and there are many kinds of feelings.

There are countless kinds, seven or something.

Introduction: The eyes are the windows to the soul, and the human eye is also particularly sensitive. Able to see things, able to distinguish colors.

The reason why people can clearly distinguish red, orange, yellow, green, blue, and purple is mainly because the retinal cells in the eye play a role. So the topic I want to share today is how humans distinguish colors from the perspective of color.

1. In terms of color, how do humans distinguish between colors?

Experiments have shown that there are three types of cells in the retina, and these three cells contain red pigment, green pigment and blue pigment respectively. As the name suggests, the red pigment reacts strongly to the red light, and the response to other light is relatively weak, and the green pigment and the blue pigment are also the same principle, according to different proportions, mixed with some light of various colors, respectively, the decomposition of different photosensitive pigments. And a series of responses will be transmitted to the visual center, so that the eye can distinguish different colors.

People see color TVs in their daily lives, and they are also made according to this principle, and humans can distinguish up to 180 colors.

2. What is color blindness and color weakness?

In life, some people are unable to clearly distinguish red, yellow, blue, green and other colors, and there will be some abnormal color vision, also known as color blindness or color weakness. Color blindness is mainly the lack of ability to distinguish a certain color, and color weakness is mainly due to the relatively weakened ability to distinguish colors. People who are completely unable to distinguish colors are also called total color blindness, and people who are completely color blind are unable to distinguish any color, and all the colors they see are gray.

Those who cannot distinguish one color are called partial color blindness. This kind of person is more common in daily life, but it is more common in the male group. And color blindness is also very inconvenient in daily life, for example, you can't take a driver's license like a normal person, and you can't engage in some color-related work, which will make life very colorless and always gray.

There are red pigment, green pigment and blue pigment in the human retina, and each cell reacts differently to light, and these responses will be transmitted to the visual center, and humans can distinguish many different colors.

Because people's sensory ability is relatively strong, the color state of different colors on the retina is completely different, and the feeling brought to people is also completely different.

There are three types of cells present in the human retina, and these three types of cells can recognize color. Humans can distinguish colors very well.

The world is so big that there are many rare eye colors among humans, how many have you seen?

Human eyes can see many colors, red, blue and green are the three primary colors of nature, there are red, blue, and green color sensors in the retina of our eyes, and the colors we see are made up of these three color sensors!

In addition, the spectrum of three primary colors: red, yellow, blue, color palette: red, green, blue.

Put two or more colors together on a disc and rotate them quickly by power, so that you can see new colors. Each color has a different proportion, and you can get a different color. Theoretically, the human eye can see an infinite number of colors.

However, according to scientists, men can see about 1.3 million bells of color, and women about 1.8 million bells.

Seven species: red, orange, yellow, green, blue, purple.

Give people color, look at what kind of person.

Hello, I am happy to serve you and give you the following answer: If you give a color, it may refer to facial expressions or skin tones. This may be due to people's frequent lack of adequate sleep and diet, or due to environmental pollution and other reasons, resulting in ** damage, resulting in facial expression or poor skin tone.

The steps to resolve this issue are as follows:1Focus on good eating habits:

Stick to eating nutritionally balanced foods every day, especially foods that contain a lot of vitamins, such as fresh vegetables and fruits, as well as protein-rich meat and fish. 2.Focus on getting enough sleep:

Get enough sleep every day, and it is generally recommended to sleep at least 8 hours a day to maintain good health. 3.Avoid environmental pollution:

Try to avoid contact with harmful substances, such as car exhaust, smoke, etc., to prevent **damage. 4.Use skincare products regularly:

Use skincare products such as lotions, cleansers, etc. regularly to keep you moisturized. Personal tip: Sticking to good eating and sleeping habits, avoiding harmful substances as much as possible, and using skincare products regularly can effectively maintain your health, thereby reducing the occurrence of color.