Optical computational system
OwnerMichael L. Myrickinventor
Life of this patent
Estimating the term…
Abstract
In optical filter systems and optical transmission systems, an optical filter compresses data into and/or derives data from a light signal. The filter way weight an incident light signal by wavelength over a predetermined wavelength range according to a predetermined function so that the filter performs the dot product of the light signal and the function.
Claims6
A method of adjusting the intensity of light in an optical spectroscopy system from a light source that emits light having an expected average wavelength spectrum to maintain the reliability of a light signal from said light source, said method comprising the steps of:
- modulating a first said light signal by an optical filter configured to weight the intensity of said first light signal by wavelength according to a regression vector that identifies a difference between said average spectrum and the wavelength spectrum of said light signal from said light source;
- comparing the intensity of said modulated light to an intensity expected if said wavelength spectrum of said first light signal equaled said average spectrum;
- and
- adjusting a power input to said light source responsively to said comparison to a degree so that a subsequent said light signal defines a wavelength spectrum that is closer to said average spectrum, as measured by said modulating and comparing steps, than said wavelength spectrum of said first light signal.
For a light source in an optical spectroscopy system, a method of compensating for a change in a light signal, said method comprising the steps of:
- providing a light source that outputs a light signal having a wavelength spectrum;
- identifying a relationship between change in said wavelength spectrum and an expected average wavelength spectrum of said light source;
- and
- based on said relationship, modifying said wavelength spectrum in compensation for said change.
For a light source in an optical spectroscopy system, a method of compensating for change in a light signal, said method comprising the steps of:
- applying a light signal from a light source to a measurement sample, wherein the entire wavelength range of said light signal applied to said measurement sample is simultaneously applied to said measurement sample;
- defining a relationship between change in spectral shape over said wavelength spectrum and change in input power to said light source;
- and
- based on said relationship, relating a change in said spectral shape to a modification in said input power and so modifying said input power in compensation for said change in said spectral shape.
Dependencies are inferred from the claim text.