Bio-sensing apparatus

  • US 10,460,188 B2
  • Filed: 06/14/2018
  • Issued: 10/29/2019
  • Est. Priority Date: 08/26/2014
  • Status: Active Grant
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First Claim
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1. A bio-sensing apparatus, adapted to sense a biopolymer, the bio-sensing apparatus comprising:

  • a sensing element, having a sensing surface;

    a spatial filter element disposed on the sensing surface and comprising spatial filter sheets, wherein each of the spatial filter sheets comprising;

    a light-transmitting layer; and

    a spatial filter layer, disposed on the light-transmitting layer and having light-transmitting portions and light-blocking portions, each of the light-transmitting portions is surrounded by light-blocking portions of the light-blocking portions, wherein light-transmitting layers of the spatial filter sheets and spatial filter layers of the spatial filter sheets are stacked alternately in a normal direction of the sensing surface;

    a light-transmitting element disposed on the spatial filter element, the spatial filter element is disposed between the light-transmitting element and the sensing element; and

    a surface plasma resonance layer disposed on the light-transmitting element and adapted to receive the biopolymer, the light-transmitting element is disposed between the surface plasma resonance layer and the spatial filter element.

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