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Sensing apparatus having optical assembly that collimates emitted light for detection

  • US 20070205365A1
  • Filed: 03/03/2006
  • Published: 09/06/2007
  • Est. Priority Date: 03/03/2006
  • Status: Active Grant
First Claim
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1. A sensing apparatus comprising:

  • a sample holder configured to receive a sample;

    an optical source configured to emit excitation light;

    an optical assembly configured to receive the excitation light, the optical assembly being spaced from the sample holder and being rotatable about an axis;

    an objective lens; and

    a detector, wherein the optical assembly is configured to direct the excitation light to a first location on the sample when the optical assembly is in a first position, and to direct the excitation light from the optical source to a second location on the sample when the optical assembly is rotated to a second position, the objective lens is configured to collimate light emitted from the first and the second locations on the sample, and the detector is configured to receive the collimated light.

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