Optical Lens Processing
Essay specific features
June 21, 2015
No of pages / words:
3 / 815
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Edging is the process of cutting these optical lens blanks to fit frames, producing a pair of glasses.
There are four pieces of equipment used in the lens edging process. A lensometer is used to check the power in the lens. The tracer is used to determine the dimensions and shape of the frame...
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The tracer is used to determine the dimensions and shape of the frame. The blocker is used to prepare the lens for handling by the edger. The edger cuts the lens to the dimensions specified by the tracer.
Lensometer (Source: Topcon)
Tracer (Source: National Optronics)
Edger (Source: National Optronics)
Step 1 ? Checking the Lens
After receiving the lens blanks the lab technician first checks them visually for any scratches or imperfections that would be cause for rejection...
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