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Progressive addition lenses

  • US 6,086,203 A
  • Filed: 09/03/1998
  • Issued: 07/11/2000
  • Est. Priority Date: 09/03/1998
  • Status: Expired due to Term
First Claim
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1. A lens comprising:

  • a.) an optical preform comprising a progressive addition surface having a near vision zone and a first dioptric add power; and

    b.) one or more continuous optical elements having a second dioptric add power at least one of the one or more continuous optical elements disposed so as to overlap the near vision zonewherein the dioptric add power of the lens is the sum of the first and second dioptric add powers.

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