With the development of science and technology, ski lenses have also developed from a single layer to a double layer, from non-fog to anti-fog, which can be applied to various weather conditions. The frame is safer with plastic products, and the color of the lens is preferably yellow or brown. Ski goggles should have the following functions:
First, prevent the cold wind from irritating the eyes;
Second, to prevent ultraviolet rays from scorching the eyes;
Third, the inner lens should not be fogged;
Fourth, ski goggles should not cause damage to the face after a fall. (Note: Skiers who wear glasses should choose OTG ski goggles (Over The Glasses) in order to cover all myopia.
Fifth, the lens is resistant to impact. International standards must pass the DROP BALL TEST and impact resistance test.
With the development of science and technology, the ski lens has also developed from a single guide to a double layer. It is not anti-fog to anti-frost, and can be applied to various weather conditions. The mirror surface is divided into an inner lens and an outer lens. The inner lens is made of resin and has good water absorption. It has a good anti-fogging effect after being immersed in an anti-fog liquid. The surface of the outer lens is hardened to prevent the lens from being scratched. The main materials for color plating are silicon dioxide and titanium dioxide. In addition, there are vents made of ventilated sponge on the upper edge of the outer frame to dissipate the hot air discharged from the facial skin to the outside of the mirror to ensure that the mirror has a good visual effect.
use
Experience 1: Choose a fully enclosed ski goggles. The appearance of this ski goggles is similar to diving goggles, which can be close to the face, prevent wind from entering, and effectively protect the eyes and skin around the eyes from being blown by cold wind. Experience 2: Choose a lens with an anti-ultraviolet index above UV400 to protect your eyes and resist UV rays.
Experience 3: It is best to choose lenses with anti-fog coating.
Experience 4: Choose flexible lenses and frames so that they will not cause damage to the face when they are hit.
Experience 5: The upper eaves of the outer frame must have vents made of ventilated sponge, so that the hot air discharged from the facial skin can be dissipated outside the mirror.
Experience 6: Skiers who wear glasses should choose ski goggles (OTG) that can be equipped with myopia lenses when choosing ski goggles.
Experience 7: Choose the method of equipped with myopia frame inside the snow goggles with large frame, it is easy to damage the glasses when falling down, and the myopia frame is easy to scratch the snow lens, especially the coating layer.
Experience 8: According to the weather conditions of the snow field, that is, the brightness, choose snow glasses with different lens colors to wear. Generally, yellow, orange, and red lenses will have a significant brightening effect. Of course, if the weather is bright, the snow goggles wearing this color lens are prone to eye fatigue.
shape
The lenses of snow mirrors are divided into two categories: cylindrical mirrors and spherical mirrors. Cylindrical mirrors are more common in the past, while spherical mirrors are newer styles in the past two years. Spherical mirrors are better than cylindrical mirrors in several aspects. .
1) The field of vision is wide, because the spherical design is more ergonomic.
2) The field of view is larger. Due to the protrusion of the spherical surface, the space between the lens and the human eye has increased a lot. This will bring several benefits. The air coming in from the large space has enough circulation space, which will make it difficult to get up. fog. The spherical surface increases the distance between the lens and the human eye, and also prevents the steam from the human eye from encountering the colder lens quickly, which has an anti-fog effect.
3) The spherical lens design is closer to the shape of the human eyeball, so that the line of sight is perpendicular to the lens at any angle when the eyeball rotates, reducing the possibility of parallax. The lens is farther from the human eye, and it is more difficult to touch the eyeball under accidental impact.
4) Of course, in terms of aesthetic effects, the spherical lens looks cooler. The prominent spherical lens's focusing effect makes the surrounding scenes concentrate on the lens, and the lens effect scenes appear on the lens. Therefore, to buy snow goggles, of course, the first recommendation is spherical lenses, but spherical lenses are generally expensive.
Gold Coated Cylindrical Mirror
5) Ski goggles equipped with spherical mirrors have a wider field of view, generally 1.4mm thick, but the convex parts of the spherical mirrors are easily scratched. There are two thicknesses of cylindrical lenses, one is 1.4MM and the other is 0.8MM. The impact resistance of lenses with different thicknesses is different. The international requirement for the thickness of ski goggles' lenses is a minimum of 1.27mm.
The cost of 1.4MM cylindrical lens and spherical lens are almost the same, and the impact resistance is also the same. When choosing a cylindrical lens, everyone feels that the cylindrical lens is not good. This is a wrong understanding.
Below is a cylindrical mirror and a spherical mirror
