Method and apapratus for treating an ophthalmic lens mold

Method and apapratus for treating an ophthalmic lens mold

  • CN 1,073,011 C
  • Filed: 12/21/1993
  • Issued: 10/17/2001
  • Est. Priority Date: 12/21/1992
  • Status: Active Grant
First Claim
Patent Images

1. method that molded eye-use lens is separated, molded employed mould is made up of two parts at least:

  • the die part an of the moon and the punch part of a sun, two parts amalgamation is together the time, form a cavity between the two, the periphery of at least one part is formed with flange, lens materials in the described cavity and the excess stock of mould cavity outside around eyeglass are separated, and described method is characterised in that it comprises the following steps;

    The acceleration electronics is provided at least a portion on a mold flanges surface, can to improve its surface;

    In the die part of the moon of described mould, charge into monomer;

    The punch of the sun of mould partly is stitched on the die part of the moon that is filled with monomer, and discharges unnecessary monomer in the mould cavity, and monomer is contacted with having the described ledge surface that has improved surperficial energy, make described monomer polymerization;

    WithEyeglass is taken out from flanged mould part, keep on the ledge surface that can improve on described surface unnecessary monomer simultaneously through polymerization, thereby with two mould parts separately.

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