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Fingerprint Input Module

  • US 20100183200A1
  • Filed: 01/16/2009
  • Published: 07/22/2010
  • Est. Priority Date: 01/16/2009
  • Status: Active Grant
First Claim
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1. A fingerprint input module, comprising:

  • at least one prism sheet having a micro-prism array;

    an image-capturing unit having a lens; and

    a planar light source disposed between said prism sheet and said image-capturing unit and having a through hole in optical alignment with said lens for passage of light from said micro-prism array to said lens.

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