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Process and an apparatus for chip-cutting plastic material optical lenses

  • US 20050189666A1
  • Filed: 02/02/2005
  • Published: 09/01/2005
  • Est. Priority Date: 08/02/2002
  • Status: Active Grant
First Claim
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1. A process for working plastic material optical lenses, in which chips are cut from said lenses at a predetermined point on said lens, wherein said chip-cutting is effected by means of lathing, and cooling down only said point of chip-cutting to a temperature at which said plastic material becomes brittle such that said chips break into bits.

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