- Large glass, UV filter 400
- Adjustable position of the feet and therefore the inclination of the glasses
- Photochromatic glass with filter filter 1-3
Function: Photochromatic lenses, also called self-respecting, are designed to respond to ultraviolet light. Lentils darken in lively lighting conditions, that is to say in ultraviolet radiation. The lenses remain in its state almost clear without activating UV light. It changes its color as a function of light from light. Therefore, the glasses of photchrome darken very slightly in certain situations, for example, when the room is lightened by sunlight. The color change takes place in the tens of seconds ... If you enter the strong sun in the forest, that does not mean that for a second, the glasses are lightened and vice versa ... It is a process that takes dozens of seconds.
In conjunction with 100% UV radiation protection, self-contained lenses of comfort and health of your eyes provide all year round.
Principle: Photochrome glasses work with molecules. Halogogenid molecules of silver and silver are responsible for the change of lenses so that they can darken in conditions of bright light and lighten in an environment or a dark environment without light sunlight. When the sunglasses are exposed to UV radiation, billions of photochrome molecules begin to temporarily change the structure. As soon as the shape of the large number of molecules changes simultaneously, the surface of the lens darkens. The result is glasses that darken in the shiny sun and in a dark environment lightened back, everything without any intervention, except the shiny light.
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