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OPTICAL SENSOR USING COLLIMATOR

  • US 20160224816A1
  • Filed: 09/30/2015
  • Published: 08/04/2016
  • Est. Priority Date: 02/02/2015
  • Status: Active Grant
First Claim
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1. An optical fingerprint sensor, comprising:

  • an image sensor array;

    a collimator filter layer disposed above the image sensor array, the collimator filter layer having an array of apertures; and

    an illumination layer disposed above the collimator layer.

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