Abstract:
A photoelectric sensor retainer and a photoelectric pulse wave measuring apparatus including the same are provided. The photoelectric sensor retainer includes a sensor mounting unit on which a photoelectric sensor having a light-receiving surface is attachable and detachable, the light-receiving surface facing a measuring direction. The photoelectric sensor retainer further includes a pressing unit configured to press an upper surface of the sensor mounting unit in the measuring direction to apply pressure to the sensor mounting unit, and a pedestal including a seating plate configured to support the pressing unit, the seating plate having a principal plane perpendicular to a pressing direction of the pressing unit.
Abstract:
A chip peeling apparatus may include a peeling device. The peeling device may include a plurality of vacuum adsorption holes and a plurality of first air blow holes arranged around the plurality of vacuum adsorption holes. The peeling device may be configured to peel a chip off a tape when the peeling device is arranged below a region of the tape on which the chip is attached, vacuum pressure is applied through the plurality of vacuum adsorption holes to adsorb the peeling device to the region of the tape, and a first air blow is directed through the plurality of first air blow holes to the region of the tape.
Abstract:
An optical device includes a monochromatic light source, a light distribution switching portion configured to transmit monochromatic light emitted from the monochromatic light source in one fan-shaped region among a plurality of fan-shaped regions centered on a central optical axis and block the monochromatic light in other fan-shaped regions, an objective lens, an aperture stop configured to collect reflected light from the object, an imaging lens, which has passed through the aperture stop, a light receiver on an imaging plane formed by the imaging lens and configured to receive the reflected light from the object and photoelectrically convert the received reflected light, and a controller configured to instruct the light distribution switching portion to change a region transmitting light over time, and calculate a normal direction of the object based on an electrical signal photoelectrically converted by the light receiver.
Abstract:
Provided is a blood pressure measuring apparatus, a wrist watch type terminal, and a method of measuring blood pressure. The blood pressure measuring apparatus includes a light source that emits light onto a living body, a light receiver that receives light from the living body, and a signal processing device that calculates the blood pressure based on a detected signal received from the light receiver, wherein the signal processing device includes a subtractor that obtains a subtraction value by subtracting a moving average value of the detected signal in a second duration which is shorter than a first duration from a moving average value of the detection signal in the first duration, an extractor that extracts a feature point of a pulse wave based on the subtraction value, and a converter that converts a feature amount obtained based on the feature point to a blood pressure value.
Abstract:
A method and an apparatus for acquiring biological information, and a wrist watch-type terminal using the same, are provided. The apparatus includes a first detector configured to irradiate a living body with a first light of a first wavelength, and detect a second light that is reflected from the living body, and a second detector configured to irradiate the living body with a third light of a second wavelength, and detect a fourth light that is reflected from the living body. The apparatus further includes a processor configured to determine a pulse wave of the living body based on a subtraction value of subtracting a detection signal that is determined by irradiating the third light of the second wavelength from a detection signal that is determined by irradiating the first light of the first wavelength.
Abstract:
Provided is a blood pressure measuring apparatus, a wrist watch type terminal, and a method of measuring blood pressure. The blood pressure measuring apparatus includes a light source that emits light onto a living body, a light receiver that receives light from the living body, and a signal processing device that calculates the blood pressure based on a detected signal received from the light receiver, wherein the signal processing device includes a subtractor that obtains a subtraction value by subtracting a moving average value of the detected signal in a second duration which is shorter than a first duration from a moving average value of the detection signal in the first duration, an extractor that extracts a feature point of a pulse wave based on the subtraction value, and a converter that converts a feature amount obtained based on the feature point to a blood pressure value.