Improvements in non-spectrophotometric measurement of analyte concentrations and optical properties of objects

Abstract From the Canadian patent

Improvements in non-invasive detection methods for glucose and other constituents of interest in a sample have been developed. The apparatus and methods of the invention provide an analog of color perception of human vision, preferably in the near infrared region replacing, spectrophotometers and narrow band sources used in other non-invasive near infrared detection methods. A plurality of detector units are used, each covering a broad and overlapping region of the detected spectrum paralleling, color perception and colorimetry. The improvements are primarily concerned with improving the signal-tobackground (or noise) ratio such that the data stream is improved. These improvements use …