Abstract: A photoacoustic, noninvasive, and continuous blood glucose measurement device includes: a diode laser for irradiating a living body with a pulsed laser signal having a specific wavelength; and an ultrasound transducer for measuring a photoacoustic signal in a form of ultrasonic waves generated by a reaction of the living body with the pulsed laser signal.

Abstract: An apparatus for measuring a bio-signal includes: a light source configured to emit light; an ultrasonic transducer configured to obtain a photoacoustic signal generated from an object; a photoacoustic coupler disposed in contact with the ultrasonic transducer and configured to direct the light transmitted from the light source to a scanner and to direct the photoacoustic signal generated from the object to the ultrasonic transducer; the scanner configured to reflect the light incident from the photoacoustic coupler to the object, and reflect the photoacoustic signal generated from the object to the photoacoustic coupler; a scanner controller configured to adjust a light incident position on the object by controlling the angle of the scanner; a light detector configured to obtain a light signal by detecting the light scattered or reflected from the object; and a processor configured to obtain bio-information based on the light signal and the photoacoustic signal.

Abstract: A photoacoustic apparatus may include: a ring transducer configured to measure a photoacoustic signal generated from an object, and including a hollow space that is provided as a travel path of light and ultrasonic waves; a mirror part disposed along a light path of the light transmitted from the ring transducer, and configured to reflect the light transmitted from the ring transducer, and the ultrasonic waves generated from the object, and to adjust magnification of the mirror part according to a number of apertures of the photoacoustic apparatus; and a fluid tank including a transparent film that allows the photoacoustic signal to pass through the fluid tank, and accommodating a fluid, the ring transducer, and the mirror part inside the fluid tank.

Abstract: The present invention relates to a galvanometer scanner, and the galvanometer scanner includes a mirror mounting shaft having a portion inserted into a shaft insertion opening of a housing which includes the shaft insertion opening on one surface thereof and has contents contained therein; and a mirror mounted at the mirror mounting shaft and positioned inside the housing.

Abstract: A photoacoustic apparatus may include: a ring transducer configured to measure a photoacoustic signal generated from an object, and including a hollow space that is provided as a travel path of light and ultrasonic waves; a mirror part disposed along a light path of the light transmitted from the ring transducer, and configured to reflect the light transmitted from the ring transducer, and the ultrasonic waves generated from the object, and to adjust magnification of the mirror part according to a number of apertures of the photoacoustic apparatus; and a fluid tank including a transparent film that allows the photoacoustic signal to pass through the fluid tank, and accommodating a fluid, the ring transducer, and the mirror part inside the fluid tank.

Abstract: The present invention relates to a galvanometer scanner, and the galvanometer scanner includes a mirror mounting shaft having a portion inserted into a shaft insertion opening of a housing which includes the shaft insertion opening on one surface thereof and has contents contained therein; and a mirror mounted at the mirror mounting shaft and positioned inside the housing.

Abstract: A photoacoustic, noninvasive, and continuous blood glucose measurement device includes: a diode laser for irradiating a living body with a pulsed laser signal having a specific wavelength; and an ultrasound transducer for measuring a photoacoustic signal in a form of ultrasonic waves generated by a reaction of the living body with the pulsed laser signal.

Abstract: A photoacoustic, noninvasive, and continuous blood glucose measurement device includes: a diode laser for irradiating a living body with a pulsed laser signal having a specific wavelength; and an ultrasound transducer for measuring a photoacoustic signal in a form of ultrasonic waves generated by a reaction of the living body with the pulsed laser signal.