What are the glasses worn by the shooter for? What glasses?

If you watch the shooting competition in Rio Olympic Games, you will find that most athletes wear very strange glasses. Why? Is it because of myopia? The well-known American science and technology media "Business Insider" has answered this phenomenon.

Athletes wear these weird glasses mainly to improve the accuracy of shooting. These glasses are generally specially prepared according to the individual conditions of athletes, but basically include the following three parts: lenses, mechanical apertures and shielding plates. These three parts work together to help athletes aim at distant targets better.

Shooting competition looks easy, that is, raising the gun and pulling the trigger with your fingers, but in fact it is much more difficult to operate because it requires a high degree of concentration. The role of the lens is to let you see the shooting target more clearly, while the mechanical aperture can limit the amount of light entering the athletes' eyes, so that they can aim better.

If you don't understand the function of mechanical aperture, there is an action that can help you understand it roughly. When you can't see things in the distance clearly, you will close your eyes a little to see clearly. Or like photography, the aperture function in the camera is probably the same. As for the shielding plate, it is mainly to limit the field of vision and concentrate, and it can also play some protective roles.

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On August 8, Beijing time, the smoke of the women's 10 meter air pistol decisive battle in Rio Olympic Games was exhausted. China's Zhang won the first gold medal in Rio for China's Olympic team, but Greek player Craca Herr, who won the bronze medal, blushed.