Answer
Jan 10, 2021 - 09:49 AM
Photochromic lenses darken in the sun and lighten in the shade. They are available in various virtual light transmission ranges that control the darkness of the lens.
What are Photochromic lenses? Sunglasses
What are Photochromic lenses?
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Open Jan 10, 2021 - 09:49 AM
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