photochromic
- noun
- /ˌfoʊtəʊˈkroʊmɪk/
- Specialized
- One thing to note here is that because photochromic lenses are activated by UV light, they usually don't work as well when driving in a car.
Examples
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One thing to note here is that because photochromic lenses are activated by UV light, they usually don't work as well when driving in a car.
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Many people prefer photochromic glasses because they transition from clear to dark outdoors.
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My photochromic sunglasses become darker on sunny days, helping to reduce glare.
Compounds
Lenses in glasses that automatically darken in sunlight and become clear in low light
Surface Forms
Etymology
Photochromic comes from the Greek parts photo- 'light' and chrom- 'color', the same parts you see in photograph and chromatic. So a photochromic is a material that changes color when it is exposed to light.