Abstract: A head-up display device includes: an indicator dimmed by duty ratio control and configured to emit display light; a mirror member rotatable about a rotation shaft and configured to reflect the display light from the indicator to project a display image; a control unit configured to control the dimming of the indicator and the rotation of the mirror member; and a temperature sensor configured to output a signal corresponding to an ambient temperature around the indicator. The control unit includes: a temperature prediction unit configured to predict a temperature of the indicator, and a failure avoidance unit configured to execute lowering an upper limit of the duty ratio or rotation control of the mirror member for reducing the amount of sunlight that enters the indicator through the mirror member when the predicted temperature of the indicator is greater than or equal to a threshold.

Abstract: An abnormality diagnosis device includes: a data acquirer to acquire a current waveform and a driving frequency of an electric motor; a storage which stores a combination of a current value of the current waveform and the driving frequency at an identical time by the data acquirer; a data determiner to determine whether or not a current value of the current waveform and the driving frequency as a diagnosis target at an identical time by the data acquisition match the combination stored in the storage; an analyzer to perform frequency analysis for the current waveform determined to be matched by the data determiner, to extract sideband waves, and calculate a spectrum intensity of the sideband waves; and an abnormality diagnosis processor to make a diagnosis that abnormality has occurred, when the spectrum intensity of the sideband waves is equal to or greater than a threshold.

Abstract: A mirror device includes a mirror including a main body portion having a reflection surface that reflects display light, and a rotating shaft protruding from a first side wall of the main body portion, and a driving member that includes a motor including an output shaft arranged parallel to the rotating shaft, and neighboring the rotating shaft in a direction orthogonal to a rotation axis line of the rotating shaft, a first gear portion coupled to the output shaft, and a second gear portion engaged with the first gear portion, and coupled to the rotating shaft, and rotates the mirror by transmitting rotation of the output shaft of the motor to the rotating shaft via the first gear portion and the second gear portion.

Abstract: A vehicle display device includes a housing including an opening, an image display device that outputs display light of an image, and a mirror that includes a main body including a reflective surface that reflects the display light toward the opening and is rotatable around a rotation axis. The mirror includes a first and a second ribs that extend along a first direction, and face each other in a second direction. The first rib is formed as a rib closest to a side of the upper end on the back surface, the second rib is formed as a rib closest to a side of the lower end on the back surface, and a central region between the first and the second ribs on the back surface is formed as a flat curved surface, at least a part of which extends from the first rib to the second rib.

Abstract: A valve device includes a flow path formation member provided with at least one flow path hole through which a fluid passes, and a drive part that outputs a rotational force. The valve device includes a shaft, and a rotor having a sliding surface that slides while facing an opening surface of the flow path formation member where the flow path hole is opened, and the rotor is configured to increase or decrease an opening degree of the flow path hole with rotation of the shaft. The valve device includes an energization member that energizes the rotor toward the flow path formation member. The valve device includes a coupling structure configured to tiltably couple the shaft to the rotor such that a contact state between the sliding surface and the opening surface is held regardless of a posture or a position of the shaft.

Abstract: A sphygmomanometer according to the present disclosure includes a main body that is mounted with a pump and is to be disposed on a dorsal surface of a wrist and a cuff that is to be attached around the wrist. The cuff extends along a circumferential direction of the wrist from an ulnar side end portion of the main body to a palmar surface and is set to a length covering an ulnar artery or a length covering a radial artery beyond the ulnar artery of a wrist having a preset maximum wrist circumference. A fluid is supplied from the pump to the cuff to press the wrist. A blood pressure is calculated based on a pressure of the fluid contained in the cuff.

Abstract: A display device includes a display panel that includes a first hole and a device housing that is configured such that the display panel is fastened and fixed to the device housing by a screw passed through the first hole and screwed into the screw hole. The display panel includes a display-side positioning part which is configured to fit to a portion of the device housing to perform positioning of the display panel with respect to the device housing and which includes the first hole, and the device housing includes a housing-side positioning part which is configured to fit to the display-side positioning part to perform the positioning and which includes a second hole formed so as to communicate with the first hole when the housing-side positioning part is fitted to the display-side positioning part.

Abstract: A variable wavelength interference filter includes a first substrate, a second substrate facing the first substrate via a predetermined gap, a first reflection film installed at the first substrate, a second reflection film installed at the second substrate, and facing the first reflection film via a first gap, a coupling portion disposed between the first substrate and the second substrate, and a driving unit configured to change the first gap. The coupling portion has a part of a first facing surface coupled to the first substrate. The first facing surface faces the first substrate. A portion of the first facing surface of the coupling portion not coupled to the first substrate constitutes a displacement portion facing the first substrate via a second gap. A part of a second facing surface of the displacement portion is coupled to the second substrate. The second facing surface faces the second substrate.

Abstract: An apparatus includes an acquisition unit configured to acquire a characteristic value of each of partial regions of an input image; a determination unit configured to determine target regions for which a graphic is displayed, out of the partial regions, based on the acquired characteristic values and a predetermined condition; and a control unit configured to control so that the graphic is displayed in the target regions of the input image.

Abstract: A control method of a spectroscopic imaging device including an imaging element and a spectral element, the control method includes causing the spectroscopic imaging device to generate a first measurement spectrum consisting of N1 wavelengths by imaging a target object by making output wavelengths of a spectral element different when the spectroscopic imaging device is in a high accuracy mode and causing the spectroscopic imaging device to generate a second measurement spectrum consisting of N2 wavelengths by imaging the target object by making the output wavelengths of the spectral element different when the spectroscopic imaging device is in a high speed mode, in which N1 is an integer greater than or equal to two, and N2 is an integer less than N1.

Abstract: A spectral filter module includes a spectral filter that splits light having a wavelength corresponding to an input drive voltage from incident light and outputs the light, a drive unit that outputs the drive voltage based on an input wavelength command value, and a drive controller that outputs the wavelength command value and changes the wavelength command value every time a trigger signal is input from the outside.

Abstract: An optical filter includes a substrate, a first reflective film provided on the substrate, a second reflective film disposed to face the first reflective film, and a supporting portion provided on the substrate and supporting the second reflective film. The first reflective film is protected with a first protective film so as not to be exposed and the second reflective film is protected with a second protective film so as not to be exposed.

Abstract: A system includes a learning object storing section that stores objects to be learned, a learning result storing section that stores learning results, and a control section connected to an input section. The control section computes a principal component coefficient vector of a first feature vector of an object to be processed that is designated by the input section, computes a principal component coefficient vector of a second feature vector using a principal component basis vector stored in the learning result storing section, and computes the second feature vector of the object to be processed using the principal component coefficient vector of the second feature vector.

Abstract: A control method of a spectroscopic imaging device including an imaging element and a spectral element, the control method includes causing the spectroscopic imaging device to generate a first measurement spectrum consisting of N1 wavelengths by imaging a target object by making output wavelengths of a spectral element different when the spectroscopic imaging device is in a high accuracy mode and causing the spectroscopic imaging device to generate a second measurement spectrum consisting of N2 wavelengths by imaging the target object by making the output wavelengths of the spectral element different when the spectroscopic imaging device is in a high speed mode, in which N1 is an integer greater than or equal to two, and N2 is an integer less than N1.

Abstract: A projection position detection device includes: a spectroscopic camera receiving light from an image pickup range including a projection image projected onto a projection target, and picking up a plurality of spectral images corresponding to different wavelengths from each other; a spectrum computation unit computing an optical spectrum of each pixel, based on the plurality of spectral images; a feature point detector detecting a feature point in the image pickup range, based on the optical spectrum of the pixel; and a projection position calculator calculating a relative position of the projection image to the feature point.

Abstract: A system includes a learning object storing section that stores objects to be learned, a learning result storing section that stores learning results, and a control section connected to an input section. The control section computes a principal component coefficient vector of a first feature vector of an object to be processed that is designated by the input section, computes a principal component coefficient vector of a second feature vector using a principal component basis vector stored in the learning result storing section, and computes the second feature vector of the object to be processed using the principal component coefficient vector of the second feature vector.

Abstract: An apparatus includes an acquisition unit configured to acquire a characteristic value of each of partial regions of an input image; a determination unit configured to determine target regions for which a graphic is displayed, out of the partial regions, based on the acquired characteristic values and a predetermined condition; and a control unit configured to control so that the graphic is displayed in the target regions of the input image.

Abstract: A wavelength variable interference filter includes: a first substrate on which a first reflection film is formed; and a second substrate that includes a movable portion on which a second reflection film facing the first reflection film is formed and a holding portion surrounding an outer circumference of the movable portion and holding the movable portion so that the movable portion is displaceable in a thickness direction of the second reflection film. The movable portion has long and short sides in a plan view. The holding portion includes a long-side holding portion formed along the long side and a short-side holding portion formed along the short side. The rigidity of the short-side holding portion is lower than the rigidity of the long-side holding portion.

Abstract: A wavelength tunable interference filter includes a movable section having a mirror region that faces a first mirror in a first direction and an electrode so provided in a region outside the mirror region in a plan view viewed in the first direction as to surround the mirror region along the circumferential direction thereof, the electrode configured to displace the movable section in the first direction when voltage is applied to the electrode, and the width of the electrode in the plan view varies in the circumferential direction.

Abstract: A wavelength tunable interference filter includes a fixed substrate, a fixed reflection film that is provided on the fixed substrate, reflects part of incident light, and transmits at least part of the incident light, a movable reflection film that faces the fixed reflection film, reflects part of incident light, and transmits at least part of the incident light, and a fixed electrode that surrounds the fixed reflection film and has a light absorbing layer and a metal layer, and the light absorbing layer is disposed closer to the fixed substrate than the metal layer.