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METHOD AND SYSTEM FOR SENSING LIGHT USING INTERFEROMETRIC ELEMENTS

  • US 20090141286A1
  • Filed: 10/28/2008
  • Published: 06/04/2009
  • Est. Priority Date: 09/27/2004
  • Status: Active Grant
First Claim
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1. A light sensor having at least one interferometric element, the interferometric element comprising:

  • a first surface which is at least partially transmissive and at least partially reflective to at least one wavelength of light;

    a second surface which is at least partially reflective to the at least one wavelength of light, wherein the second surface is substantially parallel to and spaced a first distance from the first surface; and

    a temperature sensor coupled to the first surface, wherein the temperature sensor is responsive to changes of temperature of the first surface caused at least in part by absorption of the at least one wavelength of light.

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