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Method of measuring diffractive lenses

  • US 7,659,970 B1
  • Filed: 11/29/2006
  • Issued: 02/09/2010
  • Est. Priority Date: 11/30/2005
  • Status: Active Grant
First Claim
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1. A method for measuring an optical property of a multi-focal lens, comprising:

  • filtering out light transmitted by all but one of a plurality of diffraction orders of the lens to provide an unfiltered light from a single diffraction order;

    receiving the unfiltered light at a wavefront detector; and

    analyzing the unfiltered light at the wavefront detector to measure the optical property.

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