Abstract: A photodetection device includes: a base that defines first and second reference directions perpendicular to each other; a projection holder positioned in the first and second reference directions with respect to the base; a projection unit having a projector held by the base and a projection lens system held by the projection holder on a projection optical axis perpendicular to the first and second reference directions; a first projection shim replaceably interposed between the base and the projection holder, in a first projection gap that extends along the first reference direction; a second projection shim replaceably interposed between the base and the projection holder, in a second projection gap that extends along a projection intersecting direction that intersects the first and second reference directions; and a light projection screw that fixes the projection holder to the base by screwing along the first reference direction.

Abstract: There is provided a pedestrian guidance device that pedestrians can be guided to their respective attributes, the pedestrian guidance device including: a detection unit configured to detect respective viewpoint positions and attributes of a plurality of pedestrians; and a display unit configured to display simultaneously a plurality of images for guiding the respective pedestrians on the same screen, based on the respective attributes of the plurality of pedestrians, and displaying the plurality of images such that the plurality of images are displayed in respective directions of the viewpoint positions of the pedestrians respectively corresponding to the images.

Abstract: Provided is a pressure detection device including a pressure detection unit and a channel unit. The channel unit has a contact part arranged in contact with the pressure detection unit, the contact part has a protective film arranged in contact with a pressure detection surface and configured to block contact between the pressure detection surface and a liquid and a body forming an opening arranged at an end of the channel, the protective film and the body are formed of a thermoplastic fluorine resin, and the protective film is arranged so as to close the opening of the body and welded to the body in an annular region extending circumferentially about the axis.

Abstract: Provided is a pressure detection device including a pressure sensor, a resin flow path body, a sensor holder that presses and fixes the pressure sensor against and to the accommodation part of the flow path body along the axis, and an O-ring being in contact with the pressure sensor to form an annular seal area. The accommodation part has an inner circumferential face formed in a cylindrical shape, an opening hole communicating with a flow path, and a bottom face, the sensor holder has a tapping screw formed on an outer circumferential face formed in a cylindrical shape, and the tapping screw is fastened into the inner circumferential face to fix the pressure sensor to the accommodation part.

Abstract: Provided is a tube pump including: an accommodation unit accommodating a pair of roller units and having a tube arranged therein; and a pair of drive units that rotate the pair of roller units, respectively. The outer circumferential face of a roller has a first gear area provided with a first gear, a first tube area contacted with the tube, and a groove area with a groove formed about the roller axis. The inner circumferential face of the accommodation unit has a second gear area provided with a second gear, a second tube area that pinches and closes the tube, and a protruding area with a protruding part formed about the axis. The pair of roller units rotate about the axis with the protruding part accommodated in the groove. The tip of the protruding part is arranged at a position more projecting toward the axis than the second gear.

Abstract: An optical system including: an imaging element configured to convert light into an electric signal; a lens configured to deflect and converge the light; and a prism disposed in an optical path between the imaging element and the lens, wherein a virtual image of a light receiving surface of the imaging element is formed in the prism and a focusing surface is at a position conjugate with the virtual image with the lens interposed therebetween.

Abstract: An information providing device according to one aspect of the present disclosure includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: receive a face image; determine whether a person in the face image is unsuitable for iris data acquisition based on the face image; and output information based on determining that the person is unsuitable for the iris data acquisition when the person is determined to be unsuitable for the iris data acquisition.

Abstract: To provide a system, a method and the like for acquiring more images or more quickly focused images. A control device acquires information regarding a situation of a range captured by an imaging device, determines a mode according to an assumed situation of the range captured by the imaging device among a plurality of focusing modes, and transmits designation information specifying the determined mode to the imaging device. The imaging device receives the designation information from the control device, and captures an image using the mode specified by the received designation information.

Abstract: Provided is joint unit having a resin tube, a joint structure, and a nut, the joint structure has a guide part that guides the outer circumferential face of the resin tube, a protrusion that forms an insertion groove between the guide part and the protrusion, and a fixing part that fixes the resin tube inserted in the insertion groove, the tip of the protrusion is located closer to a main body than the tip of the guide part, the nut has a recessed part having an inner diameter greater than a first outer diameter of the guide part and smaller than a second outer diameter of the fixing part, and the tip of the fixing part in contact with the recessed part bites into the outer circumferential face of the resin tube in a state where the nut is fastened to the joint structure.

Abstract: The coordinate system fixing unit uses the displacement of an object under measurement between photographed images in chronological order to generate fixed-coordinate chronological images. The displacement calculation unit uses the fixed-coordinate chronological images to calculate a two-dimensional spatial distribution of the displacement of the surface of the object under measurement. The displacement difference calculation unit calculates a two-dimensional displacement difference distribution by removing an error component from the two-dimensional spatial distribution. The depth movement amount calculation unit calculates a depth movement amount from the two-dimensional displacement difference distribution. The displacement separation unit calculates in-plane displacement from the two-dimensional displacement difference distribution. The determination unit uses the in-plane displacement and/or the depth movement amount to determine whether there is an abnormality in the object under measurement.

Abstract: In a transcatheter treatment support technique using a combination of a guide wire equipped with a photoacoustic technique and an ultrasonic imaging device, the ultrasonic imaging device estimates a front edge position of the guide wire using a difference between arrival times of photoacoustic waves arriving at an array of elements configuring an ultrasonic probe or a change of an image of the photoacoustic generation source, which depends on a distance of the photoacoustic generation source from an imaging region, and grasps a relationship between an imaging position and the front edge position of the guide wire using the estimation result. This enables visually grasping a relationship between a region (imaging region) from which an image is able to be obtained with reflective waves from a biological body with use of the ultrasonic probe and an insertion object present outside the region, particularly, the front edge of the guide wire.

Abstract: Provided is a tube holding member including: an insertion portion that is inserted into an insertion groove that has a first width in a width direction; and a pair of arm portions that project from the insertion groove, in which the insertion portion includes a pair of wall portions that hold a tube in a pinched state, and a coupling portion that couples the pair of wall portions, the coupling portion is elastically deformable, and the pair of wall portions are disposed to be in contact with the insertion groove such that the pair of wall portions have a second width that is longer than the first width in the width direction in a state in which the insertion portion is not inserted into the insertion groove and have the first width in the width direction in a state in which the insertion portion is inserted into the insertion groove.

Abstract: Provided is a tube pump system in which a first insertion groove extending along a first axial direction is formed in a first accommodating portion of a first tube pump, the first tube pump includes a first tube holding member that holds a first tube in the first insertion groove, a second insertion groove extending along a second axial direction is formed in a second accommodating portion of a second tube pump, the second tube pump includes a second tube holding member that holds the second tube in the second insertion groove, the shape of the first insertion groove is different from the shape of the second insertion groove, the first tube holding member has a shape corresponding to the first insertion groove, and the second tube holding member has a shape corresponding to the second insertion groove.

Abstract: A spatial optical communication system includes: a plurality of optical transmitting and receiving apparatuses capable of constituting a mesh spatial optical communication network; and at least one processor, the at least one processor carrying out an analysis process of inferring, on the basis of reception signals of the optical transmitting and receiving apparatuses, a state of an air environment in at least one portion of an area in which the spatial optical communication network is formed, or a state of an installation ground of each of the optical transmitting and receiving apparatuses in the at least one portion of the area.

Abstract: In order to determine whether a color contact lens is being worn on an iris, this image processing device includes: a first feature amount calculation means for using an image of the iris in a first wavelength band to calculate a first feature amount in the first wavelength band, said iris being used in authentication of a person; a second feature amount calculation means for using an image of the iris in a second wavelength band to calculate a second feature amount in the second wavelength band; and a covering determination means for determining, on the basis of the first feature amount and the second feature amount, whether a color contact lens is present on the iris.

Abstract: Provided is a pressure detection device including a pressure detection unit and a channel unit. The channel unit has a contact part arranged in contact with the pressure detection unit, the contact part has a protective film arranged in contact with a pressure detection surface and configured to block contact between the pressure detection surface and a liquid and a body forming an opening arranged at an end of the channel, the protective film and the body are formed of a thermoplastic fluorine resin, and the protective film is arranged so as to close the opening of the body and welded to the body in an annular region extending circumferentially about the axis.

Abstract: An authentication system according to one aspect of the present disclosure includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: track an object included in a video captured by a first capture device; detect a candidate for biometric authentication in the object being tracked; determine whether biometric authentication has been performed for the candidate based on a record of biometric authentication performed for the object being tracked; and perform the biometric authentication for the candidate based on a video of an authentication part of the candidate when the biometric authentication has not been performed for the candidate, the video of the authentication part being captured by a second capture device having a capture range including a part of a capture range of the first capture device.

Abstract: A transmitter includes a light source including a first light emitter and a second light emitter, a spatial light modulator including a modulation part that modulates light emitted from the light source, a first mirror that is arranged on a first optical path of the modulated light modulated by the modulation part and reflects the modulated light toward a first projection direction, and a second mirror that is arranged on a second optical path of the modulated light modulated by the modulation part and reflects the modulated light toward the first projection direction.

Abstract: Transmitter that includes a light source, a spatial light modulator including a modulation part that modulates illumination light emitted from the light source, a first mirror that is arranged on a first optical path of the modulated light modulated by the modulation part and reflects the modulated light toward a first projection range, and a second mirror that is arranged on a second optical path of the modulated light modulated by the modulation part and reflects the modulated light toward a second projection range around the first projection range. The first mirror and the second mirror are disposed at positions deviated from an optical path of unnecessary light included in the modulated light.

Abstract: A reception device includes a ball lens, a first light receiver including a first annular body surrounding a periphery of the ball lens, and light receiving units including first light receiving elements disposed on an inner peripheral side surface of the first annular body, and a second light receiver including a second annular body surrounding an outer periphery of the first annular body and second light receiving elements disposed on an outer peripheral side surface of the second annular body. The first light receiving elements are disposed on the inner peripheral side surface of the first annular body with the light receiving part facing the ball lens. The second light receiving elements are disposed on the outer peripheral side surface of the second annular body with the light receiving part facing in a direction opposite to the ball lens.