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Thanks to - Precision Optical Laboratory

Surfacing Overview In Pictures. Also Called: Generating, GrindingThe creation of lens power through the grinding of curvesDL = D1 D2 . Surfacing Is ---. How a lens is createdLens begins as a chunk of plastic (or glass) that is finished on the front but is just raw plastic (or glass) on the backThe back side is ground away with great precision with specific curves to match the curve on the frontThis creates the necessary power or prescription.

JasminFlorian
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Thanks to - Precision Optical Laboratory

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