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FILTERED DETECTOR ARRAY FOR OPTICAL PATIENT SENSORS

  • US 20130060104A1
  • Filed: 09/07/2011
  • Published: 03/07/2013
  • Est. Priority Date: 09/07/2011
  • Status: Active Grant
First Claim
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1. A physiological sensor, comprising:

  • an emitter configured to emit two or more wavelengths of light into the tissue of a patient;

    a charge coupled device (CCD) or complementary metal-oxide semiconductor (CMOS) photodetector array comprising a plurality of photodetectors, wherein each photodetector is configured to receive the light from the tissue of the patient and to produce a corresponding output signal; and

    one or more filter layers disposed on the plurality of photodetectors and configured to only allow light of particular wavelengths, polarizations, or both, to be received by each of the plurality of photodetectors.

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