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Method for fabricating a plastic optic element injection mold

  • US 6,735,844 B2
  • Filed: 01/14/2002
  • Issued: 05/18/2004
  • Est. Priority Date: 01/19/2001
  • Status: Expired due to Fees
First Claim
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1. A method for fabricating an injection mold for a plastic optical component comprising the steps of:

  • (a) forming at least two metal models of the plastic optic component to be produced;

    (b) forming a metal shell on each of said metal models;

    (c) scribing an axial line on each of said metal shells;

    (d) cutting a first of said shells and an underlying first of said models along a line below its axial line and the other of said shells and an underlying other of said models along a line above its axial line;

    (e) discarding a portion of the metal shell and a portion of the metal model from the cutting line away from the axial line for each of said shells;

    (f) removing the metal model from the remaining of the metal shell and trimming a portion of the metal shell between its cuffing line and the axial line for each of said shells; and

    (g) combining the resulting two metal shell portions to form the injection mold.

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