kl
You can purchase photochromic (color changing) paints at most automotive paint stores.
Photochromic Sunglasses are the eyeglasses that gets darken when exposed to the sun. Created by Corning in the late 1960s and popularized by Transitions in the 1990s,these are also sometimes called photochromatic. Lenses in photochromic sunglasses rely on a specific chemical reaction to UV radiation.
fgfcgfc
they turn darker in sunlight
Photochromic lenses adjust their tint based on the light getting darker in the sun and clearing up inside. They're perfect if you want one pair of glasses that works as both sunglasses and regular glasses. You can find more details at Eyeglass Direct.
It means changing colour in resonse to light.
Photochromic sunglasses darken when you’re outside in the sun and clear up when you’re indoors, so you don’t need to switch between glasses and sunglasses. Eyeglass Direct has plenty of stylish options with these lenses for both comfort and convenience.
Those are called photochromic lenses. They contain special molecules that react to ultraviolet light, causing the lenses to darken in brightness and clear up when UV exposure decreases.
Photochromic lenses are made by adding special light-sensitive molecules to the lens. When exposed to UV light, these molecules cause the lenses to darken in the sun and clear up when indoors. This is done by either mixing the molecules into the lens material or applying them as a coating.
Photochromic polymers are used in things like glasses, car windows, and smart windows because they change color or darken when exposed to sunlight. You’ll also find them in UV sensors, cosmetics, and security features for added functionality.
Photochromic refers to a type of lens that darkens when exposed to UV light and clears up when not exposed. These lenses are commonly used in eyeglasses and sunglasses to provide protection from sunlight.
The advantages of having photochromic lens on your sunglasses are not only convenient (ability to go from outdoors to indoors with changing eyewear) but they enhance vision of patients with various ocular pathologies (diseases) and those who have light to moderate sensivity to light.