Abstract: A power generation element includes a magnetic member that produces a large Barkhausen effect and magnetism collection members including an insertion part having the magnetic member inserted therethrough. The magnetism collection member includes a first component on an opposite side of a boundary plane to a magnetic field generation unit and a second component on the same side of the boundary plane as the magnetic field generation unit, the boundary plane passing through a center of an imaginary circle inscribed in the insertion part and having a diameter equal to a length of the insertion part in a third direction perpendicular to first and second directions, the first direction is a direction of the insertion of the magnetic member, and the second direction is a direction in which the magnetic field generation unit is disposed. A volume of the second component is larger than a volume of the first component.

Abstract: A harness member includes a cable, a housing with an insertion hole through which the cable is inserted, a heat-shrink tubing covering the housing and the cable exposed on one side from the insertion hole, and a hot melt adhesive to seal between the heat-shrink tubing and the cable and between the heat-shrink tubing and the housing. A recess is formed on the housing so as to be recessed from an outer circumferential surface covered with the heat-shrink tubing. At least a portion of the hot melt adhesive melted between the outer circumferential surface of the housing and an inner circumferential surface of the heat-shrink tubing has flowed into the recess.

Abstract: A light source device of the present disclosure includes a sapphire plate having a first surface and a second surface facing each other, a wavelength conversion material located opposite the first surface of the sapphire plate, and a first excitation light source emitting a first excitation light having directivity to the wavelength conversion material through the second surface, in which an angle between the first surface and the second surface, and a c-axis of sapphire less than 10°, and an angle between the c-axis and an optical axis of the first excitation light is 5° or more and 75° or less.

Abstract: A method for manufacturing a circuit substrate according to the present disclosure is a method for manufacturing a circuit substrate including an insulation substrate formed with a plurality of via holes passing through a first main surface and a second main surface and a metal with which the via holes are filled, the first and second main surfaces being opposing main surfaces. The method for manufacturing a circuit substrate according to the present disclosure includes: forming, in the insulation substrate, the via hole or a non-through hole opening only on the second main surface; filling the via hole or the non-through hole with the metal; polishing the metal of at least one of the main surfaces to form a step between the metal and the insulation substrate; coating a polished surface of the metal by plating; and polishing the metal on the first main surface and the second main surface.

Abstract: The manufacturing method includes: performing testing of samples having the same configuration as the torque measuring device to be manufactured to find a coil balance Cb that is a ratio (R1×R3)/(R2×R4) of a product R1×R3 of resistance values R1 and R3 of one pair of opposite sides of the four sides of a bridge circuit 8, and a product R2×R4 of resistance values R2 and R4 of another pair of opposite sides of the four sides, and a temperature change rate VT of output voltage Vo of a sensor portion 4, and acquiring a relationship X between the coil balance Cb and the temperature change rate VT from the test results; and measuring the resistance values R1, R2, R3, R4 of the four sides to find the coil balance Cb to find the temperature change rate VT from the relationship X for the torque measuring device to be manufactured.

Abstract: The present disclosure relates to a plasma resistant member in which a surface exposed to plasma is formed from a single crystal yttrium?aluminum?garnet (YAG) having a {100} plane, and a plasma treatment device component and a plasma treatment device using the plasma resistant member. When there are a plurality of surfaces exposed to plasma, at least a surface required to have the highest plasma resistance is formed from the single crystal YAG having a {100} plane.

Abstract: A harness member includes a cable, a housing with an insertion hole through which the cable is inserted, a heat-shrink tubing covering the housing and the cable exposed on one side from the insertion hole, and a hot melt adhesive to seal between the heat-shrink tubing and the cable and between the heat-shrink tubing and the housing. A recess is formed on the housing so as to be recessed from an outer circumferential surface covered with the heat-shrink tubing. At least a portion of the hot melt adhesive melted between the outer circumferential surface of the housing and an inner circumferential surface of the heat-shrink tubing has flowed into the recess.

Abstract: An optical component according to the present disclosure includes a substrate, which contains sapphire and includes a first main face and a second main face on opposite sides from each other. The inclination of the first main face and of the second main face with respect to a c-plane of the sapphire is 15° or less, and a heat dissipating portion is provided on at least one of the first main face or the second main face.

Abstract: An optical component according to the present disclosure includes a substrate containing sapphire. The substrate is provided with a functional portion and a heat dissipating portion. An inclination of a main face of the substrate is 75° or greater with respect to a c-plane of the sapphire. The functional portion and the heat dissipating portion are provided so that an angle formed by a c-axis of the sapphire and a line segment connecting the functional portion and the heat dissipating portion is 15° or less.

Abstract: A light source device of the present disclosure includes a sapphire plate having a first surface and a second surface facing each other, a wavelength conversion material located opposite the first surface of the sapphire plate, and a first excitation light source emitting a first excitation light having directivity to the wavelength conversion material through the second surface, in which an angle between the first surface and the second surface, and a c-axis of sapphire less than 10°, and an angle between the c-axis and an optical axis of the first excitation light is 5° or more and 75° or less.

Abstract: A light source device of the present disclosure includes a sapphire plate having a first surface and a second surface facing each other, a wavelength conversion material located opposite the first surface of the sapphire plate, and a first excitation light source emitting a first excitation light having directivity to the wavelength conversion material through the second surface, in which an angle between the first surface and the second surface, and a c-axis of sapphire is greater than 80°, and an angle between the c-axis and an optical axis of the first excitation light is 20° or more. A lighting device of the present disclosure includes the light source device and a light guide member.

Abstract: A light source device of the present disclosure includes a sapphire plate having a first surface and a second surface facing each other, a wavelength conversion material located opposite the first surface of the sapphire plate, and a first excitation light source emitting a first excitation light having directivity to the wavelength conversion material through the second surface, in which an angle between the first surface and the second surface, and a c-axis of sapphire is greater than 80°, and an angle between the c-axis and an optical axis of the first excitation light is 20° or more. A lighting device of the present disclosure includes the light source device and a light guide member.

Abstract: A polarization plate includes a sapphire plate having a first main surface, and a thin metal wire disposed in a stripe pattern on the first main surface of the sapphire plate. The polarization plate has an angle of 5° or less between a c-axis of the sapphire plate and a longitudinal direction of the thin metal wire.

Abstract: An outdoor image irradiation apparatus (1) includes an image light emission device (3) and a polarizer (4) for image light, and further includes a light attenuation member (5) to attenuate sunlight that comes from outside the outdoor image irradiation apparatus and enters therein. The light attenuation member (5), the polarizer (4) and the image light emission device (3) are sequentially located on an optical path for the sunlight.

Abstract: Provided are: a substrate for a color wheel made of sapphire and including a first surface and a second surface opposite to the first surface, the first surface and the second surface being c-planes; a color wheel including the substrate for a color wheel and a colored portion; a projector including the color wheel; and a method for manufacturing a substrate for a color wheel.

Abstract: There is provided an outdoor image irradiation apparatus (1) including a polarizer (4) and a wave plate (4) formed from sapphire, which are positioned in that order on a light path from an image light emission device (2, 3) for emitting image light and, further, there is provided a mobile object including the outdoor image irradiation apparatus (1).

Abstract: An outdoor image irradiation apparatus (1) includes an image light emission device (3) and a polarizer (4) for image light, and further includes a light attenuation member (5) to attenuate sunlight that comes from outside the outdoor image irradiation apparatus and enters therein. The light attenuation member (5), the polarizer (4) and the image light emission device (3) are sequentially located on an optical path for the sunlight.

Abstract: A polarization plate includes a sapphire plate having a first main surface, and a thin metal wire disposed in a stripe pattern on the first main surface of the sapphire plate. The polarization plate has an angle of 5° or less between a c-axis of the sapphire plate and a longitudinal direction of the thin metal wire.

Abstract: Provided is a highly versatile casting mold in which weight and manufacturing cost can be reduced, and whereby flash can be suppressed. A plate-shaped base part having a flat attachment face to which a back face of a fixed-cavity mold is attached is provided to a fixed mold constituting a casting mold. A portion of the base part in contact with the back face of the fixed-cavity mold has an attachment part body for supporting the fixed-cavity mold, and a pressure increasing means for increasing the pressure imparted to the fixed-cavity mold via the attachment part body in a state in which the mold is closed.

Abstract: Provided is a highly versatile casting mold in which weight and manufacturing cost can be reduced, and whereby flash can be suppressed. A plate-shaped base part having a flat attachment face to which a back face of a fixed-cavity mold is attached is provided to a fixed mold constituting a casting mold. A portion of the base part in contact with the back face of the fixed-cavity mold has an attachment part body for supporting the fixed-cavity mold, and a pressure increasing means for increasing the pressure imparted to the fixed-cavity mold via the attachment part body in a state in which the mold is closed.