Abstract: A spectrometer includes a light conduit configured to align scattered light scattered in a target by light output from a light source into a collimated beam, and a beam block configured to restrict an angle of the scattered light and detect the scattered light via the light conduit or the beam block through a filter array and a detector, thereby achieving miniaturization in a pen type or a flat plate shape while maintaining a spectral characteristic.

Abstract: A spectrometer includes a light conduit configured to align scattered light scattered in a target by light output from a light source into a collimated beam, and a beam block configured to restrict an angle of the scattered light and detect the scattered light via the light conduit or the beam block through a filter array and a detector, thereby achieving miniaturization in a pen type or a flat plate shape while maintaining a spectral characteristic.

Abstract: A method of monitoring a blood pressure includes: emitting a laser to a blood vessel in a body part; detecting, from the body part, laser speckles caused by scattering of the emitted laser; obtaining a bio-signal indicating a change in a volume of the blood vessel by using the detected laser speckles; and estimating a blood pressure based on the obtained bio-signal.

Abstract: An optical signal processing apparatus may acquire a plurality of image signals using an optical signal output from a light source toward a target, and may determine a characteristic of a target by using the obtained plurality of image signals. The obtained image signal may be obtained from a plurality of sensor arrays including a plurality of image sensors.

Abstract: An apparatus for and a method of measuring blood pressure are provided. The apparatus includes a sensor configured to radiate light to a body part, and detect a light signal that is changed due to the body part. The apparatus further includes a signal processor configured to determine a bio signal based on the light signal; and a central processing unit configured to determine a blood pressure based on the bio signal and a blood pressure estimation algorithm.

Abstract: An apparatus for acquiring bioinformation, including a laser irradiator configured to irradiate a laser beam onto a region of interest including blood vessels; a sensor configured to detect a first change in a laser speckle pattern generated by the laser beam reflected from the region of interest; and a processor configured to acquire a biosignal indicating a second change in blood flow within the blood vessels based on the detected first change in the laser speckle pattern, and to acquire the bioinformation by using the biosignal, wherein the laser beam emitted from the laser irradiator is incident at an angle to the region of interest.

Abstract: An apparatus and a method for detecting bio-information are provided. The apparatus includes a bio-signal detector including a light emitter including a light-emitting diode (LED) and a laser diode (LD), the LED and the LD being configured to emit optical signals on an object. The bio-signal detector further includes an optical detector including a light-receiver configured to detect optical signals modulated by the object. The apparatus further includes a processor configured to process the optical signals to detect the bio-information of the object.

Abstract: An optical signal processing apparatus may acquire a plurality of image signals using an optical signal output from a light source toward a target, and may determine a characteristic of a target by using the obtained plurality of image signals. The obtained image signal may be obtained from a plurality of sensor arrays including a plurality of image sensors.

Abstract: A spectrometer includes a light conduit configured to align scattered light scattered in a target by light output from a light source into a collimated beam, and a beam block configured to restrict an angle of the scattered light and detect the scattered light via the light conduit or the beam block through a filter array and a detector, thereby achieving miniaturization in a pen type or a flat plate shape while maintaining a spectral characteristic.

Abstract: A substrate for sensing, a method of manufacturing the substrate, and an analyzing apparatus including the substrate are provided. The substrate for sensing includes: a support layer; a plurality of metal nanoparticle clusters arranged on the support layer; and a plurality of perforations arranged among the plurality of metal nanoparticle clusters. The plurality of metal nanoparticle clusters each comprise a plurality of metal nanoparticles stacked in a three-dimensional structure. Each of the plurality of perforations transmits incident light therethrough.

Abstract: An apparatus and method for quantitatively sensing and analyzing a concentration of biomolecules using Raman peak shift are disclosed. The quantitative molecular sensing apparatus includes an illumination optical system including a light source configured to irradiate excitation light onto an object, a detection optical system including an optical detector configured to detect light scattered from the object, and a signal processor configured to analyze properties of the object based on signal output by the detection optical system and to calculate a concentration of target molecules in the object based on a Raman peak shift value over a predetermined time period.

Abstract: Provided are an optical nano-antenna including a tunable material layer and methods of manufacturing and operating the optical nano-antenna. The optical nano-antenna includes a substrate; and a plurality of material layers sequentially laminated on the substrate. The plurality of material layers include at least one tunable material layer and at least one slot. A first tunable material layer and a metal layer are sequentially laminated on the substrate, and a first slot is formed in the metal layer. A metal layer and a first tunable material layer are sequentially laminated on the substrate, and a first slot is formed in the metal layer. A first tunable material layer, a metal layer, and a second tunable material layer are sequentially laminated on the substrate, and a first slot is formed in the metal layer. A second slot tilted with respect to the first slot is formed in the metal layer.

Abstract: A biological information measuring apparatus, a method of acquiring biological information, and a biological information measuring band are provided. The biological information measuring apparatus may emit light beams in a direction, which is actively or passively adjusted, to a region of interest inside a target object, detect the light beams returning from the target object along trajectories different from one another, and select an optimum light beam among the detected light beams.

Abstract: A method of estimating a blood pressure is provided. The method of estimating blood pressure includes inputting physical characteristic information and blood pressure information of a subject, determining, among a plurality of groups classified according to hemodynamic characteristics, a group to which the subject belongs based on the physical characteristic information and the blood pressure information, detecting a bio-signal of the subject, extracting a plurality of features from the detected the bio-signal, and estimating a blood pressure corresponding to the extracted plurality of features and the determined group based on a learned blood pressure estimation algorithm.

Abstract: An apparatus for acquiring bioinformation, including a laser irradiator configured to irradiate a laser beam onto a region of interest including blood vessels; a sensor configured to detect a first change in a laser speckle pattern generated by the laser beam reflected from the region of interest; and a processor configured to acquire a biosignal indicating a second change in blood flow within the blood vessels based on the detected first change in the laser speckle pattern, and to acquire the bioinformation by using the biosignal, wherein the laser beam emitted from the laser irradiator is incident at an angle to the region of interest.

Abstract: An apparatus for detecting biometric information includes a photo sensor configured to acquire a first signal by detecting a change in an optical signal with respect to an object; a pressure sensor configured to acquire a second signal by detecting a change of a pressure with respect to the object; a signal extractor configured to extract a waveform signal from at least one from among the first signal and the second signal based on signal sensitivities of the first and second signals; and a signal analyzer configured to analyze biometric information from the extracted waveform signal.

Abstract: An apparatus for and a method of measuring blood pressure are provided. The apparatus includes a sensor configured to radiate light to a body part, and detect a light signal that is changed due to the body part. The apparatus further includes a signal processor configured to determine a bio signal based on the light signal; and a central processing unit configured to determine a blood pressure based on the bio signal and a blood pressure estimation algorithm.

Abstract: A method and apparatus for measuring blood pressure are provided. According to one or more exemplary embodiments, the apparatus for measuring blood pressure obtains a blood pressure value by applying a plurality of particular points, sampled at regular intervals from a pulse wave signal detected in an ear area of an object, to a pre-stored blood pressure estimation algorithm.

Abstract: Provided are an optical nano-antenna including a tunable material layer and methods of manufacturing and operating the optical nano-antenna. The optical nano-antenna includes a substrate; and a plurality of material layers sequentially laminated on the substrate. The plurality of material layers include at least one tunable material layer and at least one slot. A first tunable material layer and a metal layer are sequentially laminated on the substrate, and a first slot is formed in the metal layer. A metal layer and a first tunable material layer are sequentially laminated on the substrate, and a first slot is formed in the metal layer. A first tunable material layer, a metal layer, and a second tunable material layer are sequentially laminated on the substrate, and a first slot is formed in the metal layer. A second slot tilted with respect to the first slot is formed in the metal layer.

Abstract: An apparatus and a method for detecting bio-information are provided. The apparatus includes a bio-signal detector including a light emitter including a light-emitting diode (LED) and a laser diode (LD), the LED and the LD being configured to emit optical signals on an object. The bio-signal detector further includes an optical detector including a light-receiver configured to detect optical signals modulated by the object. The apparatus further includes a processor configured to process the optical signals to detect the bio-information of the object.