What effect does an Olympic athlete's glasses wear?

At the Rio 2016 Summer Olympics, in the shooting game, we witnessed many fierce matches, and in most of these matches, what appears most often is probably the slightly goggles. heterosexual of the players . So what effect does this accessory have? In shooting, the most important thing is definitely how to get the target hit, and the special glasses mentioned above will play a supporting role for the athletes in the shooting process.

There are many different types of glasses, from the cheapest of just a few dollars (protection only) to up to hundreds of dollars or more. A Swiss manufacturer's Champion Choice glasses are made of nearly 100 components, showing the complexity of a high-class glass. However, together, each support glass has 3 basic components, including: a lens, a mechanical iris, and patches on both sides.

Lenses can be customized according to the prescription of athletes, however this is not its main function. When the eyes are in a state of rest; it will be more effective in focusing on distant objects than near. Therefore, focusing on looking at something right in front of your eyes requires more regulatory eyes and can lead to fatigue. Therefore, adding a prescription lens of the gunner can make the eye easier to focus on adjusting the viewfinder so that it coincides with the target on the beer. However, lenses besides benefits also create a problem: focusing too much on the viewfinder can make the goal blur. That was when the mechanical iris and the mask proved useful.

Russian gunner Vitalina Batsarashkina in the 25m pistols section.

"Your eyes are like cameras," said Tom Gaylord, a gunner. If you are equipped with a camera instead of a gun, focusing on the target will become simpler, like narrowing the lens aperture. This increases the distance that objects will appear in the focus area (also called "depth of field" by photographers). This depth increases, which means you can both focus on your goals and control the viewfinder most clearly.

To accomplish this, the receptor often attaches the so-called "mechanical iris" directly behind the lens, allowing them to control the depth of the vision, through narrowing aperture and reducing the amount of light. eyes. "The less light you enter, the greater the depth of your vision , " Gaylord said. (Have you ever tried to squint to see something far away? The mechanism of this mechanical iris is the same). Similarly, the shields reduce the amount of light entering the gunner's pupils. In addition, they have the effect of limiting the visibility on the sides of the athletes, helping them to be distracted by the movements of the nearby gunners.

Although it may sound serious, glasses like these don't necessarily have to be equipped. In a playground, a grand arena like the Olympics, any opportunity allowed to increase the likelihood of victory must be utilized, and the support glass is one of them.