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.
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∙ 9y agoPhotochromic 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.
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.
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.
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.
They are similar in price to other types.They start at around 40$ and go up.Some can cost a lot just like any other type.
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You can purchase photochromic (color changing) paints at most automotive paint stores.
Photochromic lenses are polarized for better glare protection and also will have a very unique, colorful look to them.
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they turn darker in sunlight