Method for making elemental semiconductor mirror for vehicles

  • US 5,535,056 A
  • Filed: 05/15/1991
  • Issued: 07/09/1996
  • Est. Priority Date: 05/15/1991
  • Status: Expired due to Fees
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First Claim
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1. A method for manufacturing a glare-reducing mirror for vehicles comprising the steps of:

  • 1) providing a sheet of flat glass having front and rear surfaces;

    2) coating one surface of said sheet with a thin layer of an elemental semiconductor having an index of refraction of at least 3 to a desired optical thickness of at least about 275 angstroms;

    3) heating said coated glass to a temperature sufficient to allow bending of said coated glass; and

    4) bending said heated, coated glass to a desired curvature;

    said coating step including coating said one sheet surface with an elemental semiconductor selected from the group including silicon and germanium; and

    coating said layer of elemental semiconductor with a thin layer of dielectric material of optical thickness within the range of between about 1600 and 2800 angstroms prior to heating and bending said coated glass.

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