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OwnerMark Ries Robinson, Andrea Magee +4inventors
InventorsMark Ries Robinson, Andrea Magee, Michael J. Haass, Russell E. Abbink, William Radigan, V. Gerald Grafe
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The present invention relates to measurements of material properties by determination of the response of a sample to incident radiation, and more specifically to the measurement of analytes such as glucose or alcohol in human tissue. The invention is particularly useful in connection with noncontact optical sampling of skin. Some example embodiments of the invention provide for selection of preferred sampling locations responsive to optically-determined characteristics of the tissue. Some example embodiments of the invention provide for precise and repeatable alignment of the tissue based on optically-determined characteristics of the tissue.
A method of selecting a preferred sampling location for optical sampling of tissue, comprising determining a plurality of spectral metrics for each of a plurality of sampling locations, and selecting one of the plurality of sampling locations as the preferred sampling location responsive to the values of the plurality of metrics each of the plurality of sampling locations.
A method of precisely aligning a person's hand relative to an optical sampling system by optically measuring characteristics of the hand or a portion of the hand.
Dependencies are inferred from the claim text.