COMBINED ABSORPTION-REFLECTION BASED INSTRUMENT AND TECHNIQUE TO MEASURE ANTIOXIDANTS (INCLUDING CAROTENOIDS) IN HUMAN TISSUE
First Claim
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1. An instrument for measuring absorption and reflection in a biological tissue, comprising:
- a housing that includes;
an incident light source;
an output light detector configured to detect scattered light from the incident light source; and
a divider separating the incident light source from the output light detector, wherein the divider is sized and configured to prevent impingement of specularly reflected light from the incident light source on the output light detector.
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Abstract
A combined absorption-reflection based instrument and methods are introduced here to measure antioxidant carotenoids and similar compounds such as: beta-carotene, lycopene and lutein, along with others in living human tissue (e.g. skin). The device and methods provide a non-invasive, rapid, accurate, repeatable, safe and reliable method for measuring antioxidant levels in human tissue, providing information that can be used for many diagnostic and/or health purposes.
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Citations
16 Claims
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1. An instrument for measuring absorption and reflection in a biological tissue, comprising:
a housing that includes; an incident light source; an output light detector configured to detect scattered light from the incident light source; and a divider separating the incident light source from the output light detector, wherein the divider is sized and configured to prevent impingement of specularly reflected light from the incident light source on the output light detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for quantifying a chemical in a biological tissue, comprising:
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providing an instrument that includes a housing having; an incident light source; an output light detector configured to detect scattered light from the incident light source; a divider separating the incident light source from the output light detector, wherein the divider is sized and configured to prevent impingement of specularly reflected light from the incident light source on the output light detector; and a processor; contacting the biological tissue with the instrument, wherein the contacting blocks the output light detector from direct detection of light produced by the incident light source; illuminating the biological tissue with the incident light source; detecting absorbed-reflected light that is passed through the biological tissue with the output light detector. - View Dependent Claims (14, 15, 16)
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Specification