@jk789wwactive 5 months, 3 weeks ago
https://www.visopto.com/ lens, in optics, piece of glass or other transparent substance that is used to form an image of an object by focusing rays of light from the object. A lens is a piece of transparent material, usually circular in shape, with two polished surfaces, either or both of which is curved and may be either convex (bulging) or […] View
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