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Optical probe

  • US 8,163,241 B2
  • Filed: 05/07/2007
  • Issued: 04/24/2012
  • Est. Priority Date: 05/05/2006
  • Status: Active Grant
First Claim
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1. An optical probe for detecting luminescence emitted by a sample comprising:

  • a parabolic optical waveguide;

    an outer housing configured to hold said optical waveguide having a detachable component;

    a waveguide mount between said outer housing and said detachable component configured to hold said waveguide in place;

    a sensing material for detection of at least one analyte;

    an excitation source comprising an LED configured to pass light through a half-ball focusing lens which focuses light onto said sensing material to excite said sensing material;

    an emission filter configured to allow emitted light to pass;

    collection optics to focus emitted light onto a photodetector; and

    a measuring photodetector that detects emitted luminescence after passing through said collection optics;

    wherein the excitation source is provided in the direct optical path between the sensing material and the measuring photodetector, the optical probe being adapted for handheld use.

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