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MULTISPECTRAL IMAGER WITH HYBRID DOUBLE LAYER FILTER ARRAY

  • US 20150144770A1
  • Filed: 11/25/2014
  • Published: 05/28/2015
  • Est. Priority Date: 11/26/2013
  • Status: Active Grant
First Claim
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1. A multispectral imager comprising:

  • a microlens array;

    a mosaic patterned optical filter array underlying the microlens array and including a two-dimensional repetition of a unit mosaic pattern; and

    a pixelated detector array underlying the mosaic patterned optical filter array, wherein;

    the unit mosaic pattern comprises an array of composite filter elements having different peaks in a respective transmittance spectrum; and

    each composite filter element comprises a pigment based filter portion and a plasmonic nano-optic filter portion.

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