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Method of manufacturing a diffractive surface profile

  • US 5,638,212 A
  • Filed: 06/07/1995
  • Issued: 06/10/1997
  • Est. Priority Date: 12/29/1993
  • Status: Expired due to Fees
First Claim
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1. A method of manufacturing a diffractive optical component, said method comprising, in order, the steps of:

  • (i) providing a scoring tool, said scoring tool having a tip with a small flat surface, said small flat surface having the following width l;

    
    
    space="preserve" listing-type="equation">l<

    2 micrometers;

    (ii) making a mold by having a mold surface cut by said scoring tool to form a series of cuts on said mold surface, said cuts being separated by less than 2 micrometers;

    (iii) placing an optically transmissive material in said mold; and

    (iv) forming a diffractive surface of said optical component out of said refractive material.

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