ANTIOXIDANT SENSOR, ANTIOXIDANT SIGNAL OBTAINING METHOD, AND ANTIOXIDANT LEVEL DETERMINING METHOD

    公开(公告)号:US20200029873A1

    公开(公告)日:2020-01-30

    申请号:US16521988

    申请日:2019-07-25

    Abstract: An antioxidant sensor includes a first light source configured to emit light having a first wavelength onto an object; a second light source configured to emit light having a second wavelength onto the object; a third light source configured to emit light having a third wavelength onto the object, the first wavelength, the second wavelength, and the third wavelength being different from each other; a light receiver configured to receive light reflected or scattered from the object; and a processor configured to obtain a hemoglobin index by driving the first light source and the second light source, and to obtain an antioxidant signal of the object by driving the third light source based on the obtained hemoglobin index satisfying a condition.

    Apparatus and method for measuring reference spectrum for sample analysis, and apparatus and method for analyzing sample

    公开(公告)号:US09885607B2

    公开(公告)日:2018-02-06

    申请号:US15241762

    申请日:2016-08-19

    Inventor: Kun Sun Eom

    Abstract: An apparatus for measuring a reference spectrum includes a parameter adjuster configured to adjust a parameter of a spectroscope so that an intensity of a reflection spectrum of a sample has a value in a range, a reference material spectrum measurer configured to adjust reflectance of a reference material so an intensity of a reflection spectrum of the reference material is not saturated, and measure the reflection spectrum of the reference material, using the spectroscope having the adjusted parameter, a first reference spectrum calculator configured to, in response to the adjusted reflectance of the reference material not being one hundred percent, calculate a first reference spectrum based on the measured reflection spectrum of the reference material, and a second reference spectrum measurer configured to measure a second reference spectrum of the reference material, using the spectroscope having the adjusted parameter, when a light source of the spectroscope is turned off.

    Biological component estimation apparatus and operation method thereof

    公开(公告)号:US11771347B2

    公开(公告)日:2023-10-03

    申请号:US17102599

    申请日:2020-11-24

    Abstract: A biological component estimation apparatus according to an aspect of the present invention includes: a light detector array including a plurality of light detectors; a plurality of light sources disposed on both ends of the light detector array; and a processor configured to calculate a blood vessel alignment index, which indicates a degree of alignment of the biological component estimation apparatus with respect to blood vessels, by using an intensity of a first light that is measured by the plurality of light detectors after the first light is emitted to a user's skin from a first light source disposed on one end of the light detector array among the plurality of light sources, and an intensity of a second light that is measured by the plurality of light detectors after the second light is emitted to the user's skin from a second light source disposed on the other end of the light detector array among the plurality of light sources.

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