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Apparatus and method for measuring optical characteristics of an object

  • US 20090079966A1
  • Filed: 04/20/2008
  • Published: 03/26/2009
  • Est. Priority Date: 06/30/1998
  • Status: Abandoned Application
First Claim
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1. A method comprising the steps of:

  • moving a probe in proximity to an object, wherein the probe provides light to the surface of the object from one or more light sources, and receives light from the object through a plurality of light receivers, wherein the plurality of light receivers comprise one or more first light receivers and one or more second light receivers, wherein the one or more first light receivers have a first numerical aperture and the one or more second light receivers have a second numerical aperture different from the first numerical aperture;

    determining the intensity of light received by more than one of the light receivers; and

    measuring the optical characteristics of the object, wherein the measurement produces data indicative of the optical characteristics of the object.

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