Abstract: Provided is a method of correcting an error of an optical sensor including a light source and an image sensor, the method including emitting light to a material by driving the light source, acquiring an image of the material by the image sensor, and correcting an error of a distance between the light source and the image sensor of the optical sensor based on a gradation of the acquired image of the material.

Abstract: An apparatus for analyzing a substance of an object in a non-invasive manner is provided. The apparatus for analyzing a substance of an object includes: a sensor part including an image sensor, and a plurality of light sources disposed around the image sensor; and a processor configured to drive the plurality of light sources to obtain absorbance of each pixel of the image sensor based on an intensity of light received by each pixel, to correct the absorbance of each pixel based on a distance between the plurality of light sources and each pixel, and to analyze a substance of an object based on the corrected absorbance of each pixel.

Abstract: An apparatus for estimating bio-information is provided. The apparatus for estimating bio-information may a spectrometer configured to measure a spectrum from an object of the user; and a processor configured to control an output interface to output guide information to guide the user regarding spectrum measurement based on a hemoglobin index of the user while the spectrum is being measured by the spectrometer; and estimate the bio-information of the user based on a melanin index of the user and the spectrum.

Abstract: An optical sensor includes at least one pair of a light source and a photodetector, the light source and the photodetector facing each other and having an opening between the light source and the photodetector; and a base substrate disposed on or below the at least one pair of the light source and the photodetector, the base substrate including a contact sensor positioned in an area corresponding to the opening.

Abstract: An apparatus for estimating a glucose exposure may include: a spectrometer configured to measure a plurality of Raman spectra from an object; and a processor configured to extract depth-specific protein information from the plurality of Raman spectra and estimate the glucose exposure of the object based on the depth-specific protein information.

Abstract: An electronic device may a main body; a sensor part disposed on a side of the main body; and a processor configured to control a display to display a first graphical object related to a contact state of a finger based on information related to the contact state of the finger received from the sensor part before measurement of a bio-signal; and control the display to display a second graphical object related to a contact force of the finger based on information related to the contact force of the finger received from the sensor part during measurement of the bio-signal.

Abstract: An apparatus for obtaining an antioxidant index may include an image acquirer configured to acquire an image by capturing a correction reference object and a skin of a user and a processor configured to determine a first degree of yellowness of the correction reference object and a second degree of yellowness of the skin based on the image, and determine an antioxidant index of the user based on the first degree of yellowness and the second degree of yellowness.

Abstract: An apparatus for estimating bio-information includes an optical sensor including a light source configured to emit light of multiple wavelengths onto an object, and including a plurality of detectors configured to detect light of each wavelength which is scattered or reflected from the object. The apparatus includes a processor configured to obtain spectra based on light of each wavelength which is detected by each detector, determine valid spectra of the obtained spectra, and estimate a bio-information value based on the valid spectra.

Abstract: An apparatus for estimating an aging level may include: a light emitter configured to emit blue light to an object; a light receiver configured to measure fluorescence emanating from the object; and a processor configured to estimate the aging level of the object based on the measured fluorescence and an aging level estimation model.

Abstract: An apparatus for estimating a glucose exposure may include: a spectrometer configured to measure a plurality of Raman spectra from an object; and a processor configured to extract depth-specific protein information from the plurality of Raman spectra and estimate the glucose exposure of the object based on the depth-specific protein information.

Abstract: An antioxidant sensor includes a pressure sensor configured to obtain a contact pressure between an object and an optical sensor; the optical sensor configured to, based on the obtained contact pressure exceeding a set threshold pressure, emit a first light of a first wavelength to the object, and receive the first light reflected or scattered from the object; and a processor configured to determine a contact portion of the object in contact with the optical sensor, set a threshold pressure, among different threshold pressures, according to the determined contact portion, and determine an antioxidant value based on the received first light.

Abstract: An apparatus for estimating bio-information according to an embodiment of the present disclosure includes a processor configured to obtain spectra from an object, obtain a component produced based on a change in pressure applied to the object, correct the spectra based on the obtained component produced based on the change in pressure, and estimate bio-information of the object based on the corrected spectra.

Abstract: Provided is a compact spectrometer including a light blocking layer having an aperture, a micro lens provided in contact with the light blocking layer, the micro lens being configured to collimate light having passed through the aperture, a filter array configured to filter the collimated light, and a photodetector array configured to detect the filtered light.

Abstract: A spectrum processing apparatus includes: a spectrum obtainer configured to obtain an optical spectrum from a light that is scattered or reflected from a subject; and a processor configured to split the optical spectrum into a plurality of bands, determine, based on a predetermined measurement accuracy for measuring a biosignal from the light, one or more key bands from the plurality of bands, and obtain the biosignal from the determined key bands.

Abstract: An antioxidant sensor according to an aspect of the disclosure includes: a touch sensor; a light source configured to emit light of a predetermined wavelength onto an object touching the touch sensor; a light receiver configured to receive light returning from the object; and a processor configured to extract an image of a contact surface of the object based on a sensor value of the touch sensor, to analyze the extracted image of the contact surface, and to obtain an antioxidant signal of the object by driving the light source based on a result of analyzing the image of the contact surface.

Abstract: An optical sensor includes at least one pair of a light source and a photodetector, the light source and the photodetector facing each other and having an opening between the light source and the photodetector; and a base substrate disposed on or below the at least one pair of the light source and the photodetector, the base substrate including a contact sensor positioned in an area corresponding to the opening.

Abstract: Provided is a compact spectrometer including a light blocking layer having an aperture, a micro lens provided in contact with the light blocking layer, the micro lens being configured to collimate light having passed through the aperture, a filter array configured to filter the collimated light, and a photodetector array configured to detect the filtered light.

Abstract: A spectroscopy apparatus, a spectroscopy method, and a bio-signal measuring apparatus are provided. The spectroscopy apparatus may include: a dispersive element configured to divide an incident light into a plurality of lights having different output angles; and a filter array configured to divide the plurality of lights, with a higher spectral resolution than a spectral resolution of the dispersive element, and provide the divided plurality of lights to a detector.

Abstract: A spectrometer is provided. The spectrometer may include an image sensor including a pixel array; and a photonics layer disposed on the pixel array and including a plurality of resonators and a plurality of couplers evanescently coupled to the plurality of resonators.

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.