摘要:
An ink cartridge filled with an ink added with an infrared absorption material with a function of absorbing an infrared ray to distinguish the ink from another ink of a same color, the ink cartridge used in a loaded state where the ink cartridge is loaded into a printing apparatus for performing printing, the ink cartridge includes an ink supplying system including a storage portion for storing the ink, an outlet for supplying the ink to the printing apparatus in the loaded state, and a flow path for guiding the ink from the storage portion to the outlet, a light emitter, a sensor including a light receiver disposed in opposition to the light emitter with the ink supplying system intervened therebetween, the light receiver for receiving transmitted light resulting from transmission of emitted light from the light emitter through the ink supplying system, and an ink cartridge-side terminal electrically connected to the sensor, coming in contact with an apparatus-side terminal provided to the printing apparatus in the loaded state, in which the emitted light has a wavelength in an infrared range.
摘要:
A biological information acquiring apparatus includes light source units configured to irradiate light onto a living body, a light receiving unit including a light receiving element, the light receiving element including pixels, each of the pixels receiving at least one of a transmission light and a reflection light, and a nonuniform filter disposed on the light receiving unit and on a light path of at least one of the transmission light and the reflection light, the nonuniform filter having a light transmittance that varies with area of the nonuniform filter. The light source units are disposed around the light receiving unit discretely, and the light transmittance of the nonuniform filter is set so that a light intensity of at least one of the transmission light and the reflection light is uniform over an entire surface of the light receiving element.
摘要:
A concentration determination apparatus may include: an irradiation unit that irradiates short-pulsed light to an observed object; a light receiving unit that receives light backscattered from the observed object; a light intensity acquisition unit that acquires an intensity distribution of the light; an optical path length distribution storage unit that stores a model of an optical path length distribution in each layer of the plurality of layers of the short-pulsed light; an optical path length acquisition unit that acquires the optical path length distribution of each layer; a time-resolved waveform storage unit that stores a model of a time-resolved waveform; a light intensity model acquisition unit that acquires a light intensity model; an integral interval calculation unit that calculates a time range of an area; an optical absorption coefficient calculation and acquisition unit that calculates and acquires an optical absorption coefficient; and a concentration calculation unit that calculates the concentration.
摘要:
A biometric data acquisition device for acquiring data of a living body by irradiating the living body with light includes: a light source unit that emits light to the living body; a plurality of light receiving elements that receive transmitted light or reflected light, which is transmitted through the living body or reflects from the living body, respectively, by irradiating the living body with the light from the light source unit; an openable and closable gate provided for each of the plurality of light receiving elements; and an opening and closing control unit that controls opening and closing of the gate so as to make uniform intensities of light received by the plurality of light receiving elements.
摘要:
A concentration measurement method by an absorptiometric method which measures a concentration of a first solute component dissolved in a solution, in which the first solute component interacts with a solvent, includes: referring to an absorption coefficient (μaw(λ)) of the solvent; measuring an absorption coefficient (μa(λ)) of a first sample material, after an interaction between the solvent and the first solute component has occurred; and obtaining an unknown volume fraction (vg) of the first solute component and a volume fraction (vw) of the solvent, based on the absorption coefficient (μaw(λ)) of the solvent, a apparent absorption coefficient (μ′ag(λ)) of the first solute component, and the absorption coefficient (μa(λ)) of the first sample material.
摘要:
A biological information acquisition device that acquires information from a biological body by irradiating the biological body with light, the device comprises: a light source irradiating the biological body with light; a plurality of light receiving elements receiving one of passed light and reflected light from the biological body irradiated with light by the light source; and an inhomogeneous neutral density filter disposed on the plurality of light receiving elements and in a light path of one of passed light and reflected light. An optical transmittance of the inhomogeneous neutral density filter is set so that intensity of each light component received by light receiving elements is evened out as a whole.
摘要:
A concentration measurement method of measuring at least including processes of: causing a set of lights having first and second different wavelengths in which change amounts of absorption coefficients of the water due to a change in water temperature are substantially the same to be incident on the solution, and measuring an absorption coefficient in the first wavelength and a absorption coefficient in the second wavelength in the solution; referencing an absorption coefficient of the water in the first wavelength and an absorption coefficient of the water in the second wavelength; referencing an absorption coefficient of the solute in the first wavelength and an absorption coefficient of the solute in the second wavelength; and applying a simultaneous equation to obtain a volume fraction of an unknown solute and a volume fraction of the water based on the above absorption coefficients.
摘要:
A concentration determination apparatus may determine a concentration of a target component in an arbitrary layer of an observed object including a plurality of light scattering medium layers. The concentration determination apparatus may include an irradiation unit, light scattering medium layer selection unit, a light receiving unit, a light intensity acquisition unit, an optical absorption coefficient calculation unit, and a concentration calculation unit.
摘要:
An aspect of the present invention is related to a method for determining a right intensity for fitness level or exercise stress that includes a first step of inspection a first change of amplitudes of a first heart sound with regard to a second change of intensities of exercise stress, a second step of inspection of a third change of ratios of a first length of a cardiac dilation period relative to a second length of one cardiac cycle with regard to the second change, a third step of identification of a folding point of the first change, and a fourth step of determination of an intensity of the intensities at the folding point as the right intensity of exercise stress if a ratio of the ratios at the intensity is higher than a predetermined value.