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Lens (optics) - Wikipedia, the free encyclopedia
A lens is an optical device with perfect or approximate axial symmetry which transmits and refracts light, converging or diverging the beam. A simple lens is a lens consisting of a ...
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Lens (anatomy) - Wikipedia, the free encyclopedia
The lens is a transparent, biconvex structure in the eye that, along with the cornea, helps to refract light to be focused on the retina. The lens, by changing shape, functions to ...
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Lens definition of Lens in the Free Online Encyclopedia.
Lens, city, France Lens (läNs), city (1990 pop. 35,278), Pas-de-Calais dept., N France. During the 19th and 20th cent. it was one of the most important coal centers in N France ...
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