fotochromowe

Fotochromowe is a Polish term referring to photochromic lenses. These are lenses that change their tint in response to ultraviolet (UV) light. When exposed to sunlight, which contains UV radiation, the photochromic molecules embedded in the lens undergo a chemical reaction, causing them to darken. As the UV exposure decreases, such as when moving indoors or into shade, the molecules revert to their original state, and the lenses become clear again.

The technology behind photochromic lenses was developed in the 1960s. Initially, they were primarily used in eyeglasses. Modern photochromic lenses are available in a variety of materials, including plastic and polycarbonate, and can be incorporated into different types of eyewear, such as sunglasses and ski goggles. They offer the convenience of not needing to switch between regular glasses and sunglasses, providing protection from glare and UV radiation in varying light conditions. The speed of darkening and clearing can vary depending on the specific product and temperature, with faster transitions generally achieved in cooler conditions.