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Multiple wavelength sensor substrate

CAFC
  • US 7,761,127 B2
  • Filed: 03/01/2006
  • Issued: 07/20/2010
  • Est. Priority Date: 03/01/2005
  • Status: Active Grant
First Claim
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1. A physiological sensor comprising:

  • a plurality of emitters configured to transmit optical radiation having a plurality of wavelengths in response to a corresponding plurality of drive currents, the plurality of emitters including a substrate;

    a thermal mass disposed proximate the emitters and within the substrate so as to stabilize a bulk temperature for the emitters; and

    a temperature sensor thermally coupled to the thermal mass,wherein the temperature sensor provides a temperature sensor output responsive to the bulk temperature so that the wavelengths are determinable as a function of the drive currents and the bulk temperature.

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