Apparatus and method for determination of urine color

Details Apparatus and method for determination of urine color Apparatus and method for determination of urine color

1996-05-09

1998-03-03

McGraw, Vincent P.

Optics: measuring and testing

By shade or color

With color determination by light intensity comparison

356402, G01N 2127

Patent

active

057241481

ABSTRACT:
An apparatus for analyzing a body-fluid sample, such as a urine sample, disposed on a reagent pad is provided with means for illuminating the reagent pad on which the body-fluid sample is disposed, means for detecting light received from the reagent pad and generating a first reflectance signal at a first time and a second reflectance signal at a second time, and means for assigning a color to the body-fluid sample based upon the magnitudes of the first and second reflectance signals. The means for assigning the color to the body-fluid sample may include means for determining a pair of color coefficients each of which has a magnitude based upon the magnitudes of the reflectance signals and means for assigning the color to the body-fluid sample based upon the magnitudes of the color coefficients.

REFERENCES:
patent: 5231576 (1993-07-01), Suzuki et al.
patent: 5303037 (1994-04-01), Taranowski

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