Patent Document ID: 20070112258
Application ID: 11337912
Patent Status: 0

Claim One:
1. A method of measuring a property of a sample with a spectroscopic system, the method comprising: measuring, with a first spectroscopic system, spectra of a first set of at least three different reference targets, each having a known, unique reflectivity spectrum; calibrating the first spectroscopic system based on the spectra of the first set of reference targets measured by the first spectroscopic system; measuring, with the first spectroscopic system, a spectrum of a known reference specimen having a known value of the property; generating a model for the measured property on the first spectroscopic system using the spectrum of the known reference specimen; measuring, with a second spectroscopic system, spectra of a second set of at least three different reference targets, each having a known, unique reflectivity spectrum; calibrating the second spectroscopic system based on the spectra of the second set of reference targets measured by the second spectroscopic system; applying the model to the second spectroscopic system; measuring a spectrum of the sample using the second spectroscopic system; and determining a value of the property using the model.