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Lens for displaying a virtual image

  • US 9,897,886 B2
  • Filed: 02/10/2016
  • Issued: 02/20/2018
  • Est. Priority Date: 02/10/2015
  • Status: Active Grant
First Claim
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1. A method for manufacturing a lens blank, the method comprising:

  • providing a first body section having a first surface and an opposing surface, the opposing surface defining a front surface of the lens blank;

    casting, on the first surface of the first body section, a material for forming a second body section; and

    curing the material to form the second body section and bond it to the first body section to form the lens blank with a unitary body.

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