×

Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid

DC
  • US 8,027,087 B2
  • Filed: 09/10/2010
  • Issued: 09/27/2011
  • Est. Priority Date: 12/06/2004
  • Status: Expired due to Fees
First Claim
Patent Images

1. A wire-grid polarizer device for polarizing light, comprising:

  • a) a substrate;

    b) a wire-grid layer, disposed over the substrate, the wire-grid layer including an array of elongated metal elements having lengths longer than a wavelength of the light and a period less than half the wavelength of the light and defining gaps between the elements; and

    c) a plurality of contiguous dielectric-grid layers contiguous with one another, disposed directly on top of the wire-grid layer, each dielectric-grid layer including an array of dielectric material elements, the plurality of contiguous dielectric-grid layers including different materials with different indices of refraction; and

    d) the array of dielectric material elements and the array of metal elements being oriented substantially parallel with one another, and the arrays having substantially equal periods.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×