Abstract: A vibration device includes a light-transmitting body that is located on a subject side of an imaging element, a cylindrical body that includes a first end portion, a second end portion on the opposite side from the first end portion, and an outer surface and an inner surface that connect the first end portion and the second end portion to each other, the cylindrical body being connected to the light-transmitting body and holding the light-transmitting body on the first end portion side thereof, and a piezoelectric element provided along a circumferential direction of the cylindrical body and that torsionally vibrates the cylindrical body.

Abstract: A vibration device includes a cylindrical vibration body portion including a cylindrical member and a piezoelectric vibrator fixed to the cylindrical member, and a light-transparent body portion that includes an outer peripheral portion connected to an end surface of the cylindrical member and a light-transparent portion positioned in front of a lens. The light-transparent body portion vibrates in a bending mode by vibration of the cylindrical vibration body portion. The bending mode includes a first bending mode in which a center-maximum-displacement portion of the light-transparent body portion and the outer peripheral portion of the light-transparent body portion connected to the end surface are displaced in the same direction and a second bending mode in which the center-maximum-displacement portion of the light-transparent body portion and the outer peripheral portion of the light-transparent body portion are displaced in opposite directions.

Abstract: A temperature and humidity sensor includes a substrate, a first electrode provided on the substrate, a linear second electrode at least part of which is so provided as to extend along the first electrode, and a moisture sensitive film provided between the part of the second electrode extending along the first electrode and the first electrode. The second electrode has a section that is formed in a spiral shape when viewed from above so as to form an inductor. With this, a precise oscillation circuit can be configured so that a temperature-humidity sensor small in size and capable of being easily manufactured can be provided.

Abstract: A vibrating device includes a tubular body including a first end, a second end, and a plurality of side surfaces that connect the first and second ends, piezoelectric vibrators that are fixed to the tubular body and vibrate the tubular body, and a light transmitting body unit that is directly or indirectly connected to the second end of the tubular body.

Abstract: A vibrating device includes a tubular body including first and second end surfaces, and a side wall portion that connects the first and second end surfaces, a piezoelectric vibrator provided on the first end surface of the tubular body, and a light transmitting body that is directly or indirectly connected to the second end surface and covers an opening in the second end surface of the tubular body. A connecting portion is connected to the first end surface of the tubular body inside or outside an opening in the first end surface. A tubular bent portion is connected to a surface of the connecting portion that faces toward the second end surface of the tubular body. The tubular bent portion extends in a direction from the first end surface toward the second end surface of the tubular body.

Abstract: A vibration device includes a support body that includes first and second principal surfaces and a through hole penetrating through the support body to open at the first and second principal surfaces, a first vibration element on the side of the first principal surface of the support body, and a second vibration element on the side of the second principal surface of the support body. The first vibration element includes a first vibration body that is translucent. The second vibration element includes a second vibration body and a second piezoelectric vibrator provided on the second vibration body.

Abstract: A vibration device includes a vibration body including a light-transmitting portion including first and second main surfaces opposing each other and a vibration portion that is continuous with the light-transmitting portion and vibrates with a main vibration together with the light-transmitting portion, and a piezoelectric vibrator fixed to the vibration portion. Localized vibration portions which generate a localized vibration different from the main vibration are provided at a position not overlapping with a center or approximate center of the light-transmitting portion.

Abstract: A vibration device that is used in a camera body including a lens includes a cylindrical vibrating body including a piezoelectric vibrator, a cylindrical mode converting connected member connected to one end of the cylindrical vibrating body, and a light transmitting body attached to the mode converting connected member. The light transmitting body includes a light transmitting portion disposed on a front side of the lens. The mode converting connected member includes a thin portion having a thickness smaller than a thickness of the cylindrical vibrating body.

Abstract: A vibration device includes a cylindrical vibration body portion including a cylindrical member and a piezoelectric vibrator fixed to the cylindrical member, and a light-transparent body portion that includes an outer peripheral portion connected to an end surface of the cylindrical member and a light-transparent portion positioned in front of a lens. The light-transparent body portion vibrates in a bending mode by vibration of the cylindrical vibration body portion. The bending mode includes a first bending mode in which a center-maximum-displacement portion of the light-transparent body portion and the outer peripheral portion of the light-transparent body portion connected to the end surface are displaced in the same direction and a second bending mode in which the center-maximum-displacement portion of the light-transparent body portion and the outer peripheral portion of the light-transparent body portion are displaced in opposite directions.

Abstract: A vibrating device includes a tubular vibrating body and a lens cover coupled to a first surface of the tubular vibrating body. The tubular vibrating body includes a tubular member and piezoelectric vibrators. The lens cover includes a mode changing coupler and a light transmitting body unit disposed in front of a lens of a camera. The mode changing coupler includes a thin portion having a thickness smaller than a thickness of the tubular member.

Abstract: A vibration device includes a support body that includes first and second principal surfaces and a through hole penetrating through the support body to open at the first and second principal surfaces, a first vibration element on the side of the first principal surface of the support body, and a second vibration element on the side of the second principal surface of the support body. The first vibration element includes a first vibration body that is translucent. The second vibration element includes a second vibration body and a second piezoelectric vibrator provided on the second vibration body.

Abstract: A thermal-type flow-rate sensor includes a substrate and a detection unit that is supported by the substrate and at least an upper surface of which is exposed to a flow of a fluid. The detection unit includes: an insulating layer, a heating element arranged on an upper surface of the insulating layer, an upstream temperature measurement element that is arranged on the upper surface of the insulating layer upstream of the heating element in the flow direction that includes a pyroelectric layer, and a downstream temperature measurement element arranged on the upper surface of the insulating layer so as to be positioned downstream of the heating element in the flow direction and that includes a pyroelectric layer.

Abstract: A vibration device that is used in a camera body including a lens includes a cylindrical vibrating body including a piezoelectric vibrator, a cylindrical mode converting connected member connected to one end of the cylindrical vibrating body, and a light transmitting body attached to the mode converting connected member. The light transmitting body includes a light transmitting portion disposed on a front side of the lens. The mode converting connected member includes a thin portion having a thickness smaller than a thickness of the cylindrical vibrating body.

Abstract: A vibrator in a vibrating gyroscope includes a circular annular portion, a rectangular annular portion, and joining portions. The rectangular annular portion is disposed adjacent to an outer side of the circular annular portion. The joining portions join the circular annular portion and the rectangular annular portion. The rectangular annular portion includes linear beam portions. The joining portions join the circular annular portion and the center portions of the beam portions to each other.

Abstract: A weight member includes two sides opposite to each other in an X-axis direction when looked at in a plan view. A vibrating beam includes one end portion connected at one location to a fixation member and the other end portion connected at one location to one of the two sides of the weight member in the X-axis direction when looked at in a plan view. The vibrating beam supports the weight member to be displaceable in the X-axis direction. A holding beam includes one end portion connected at one location to the fixation member and the other end portion connected at one location to the other of the two sides of the weight member opposing to each other in the X-axis direction when looked at in a plan view. The holding beam supports the weight member to be displaceable in the X-axis direction. A driver is disposed on the vibrating beam and vibrates the vibrating beam. A detector is disposed on the vibrating beam and configured to output a detection signal changes according to deformation of the vibrating beam.

Abstract: An acceleration sensor includes a fixation member, a weight member including a plate with two opposing sides parallel or substantially parallel to an X-direction and two opposing sides parallel to a Y-axis direction in a plan view, the weight member including a cutout extending in a direction about 45° relative to the X and Y axis directions, a vibrating beam linearly extending in the direction about 45° relative to the X and Y axis directions in the plan view, and one end portion is connected to the fixation member and the other end portion is connected to the weight member, the vibrating beam is partly arranged within the cutout and supporting the weight member to be displaceable in a Z-axis direction, a driver disposed on the vibrating beam and vibrating the vibrating beam, and a detector disposed on the vibrating beam and outputting a detection signal that is changed depending on deformation of the vibrating beam.

Abstract: A thermal-type flow-rate sensor includes a substrate and a detection unit that is supported by the substrate and at least an upper surface of which is exposed to a flow of a fluid. The detection unit includes: an insulating layer, a heating element arranged on an upper surface of the insulating layer, an upstream temperature measurement element that is arranged on the upper surface of the insulating layer upstream of the heating element in the flow direction that includes a pyroelectric layer, and a downstream temperature measurement element arranged on the upper surface of the insulating layer so as to be positioned downstream of the heating element in the flow direction and that includes a pyroelectric layer.

Abstract: A vibrator includes first and second circular or substantially circular arc-shaped beam portions, a base end-side weight portion, and a base end-side weight portion joining portion. The end portions of the first and second circular or substantially circular arc-shaped beam portions in an X-axis positive direction face each other across a distance in a Y-axis direction, and the end portions thereof in an X-axis negative direction are joined to each other. The base end-side weight portion is disposed between the first and second circular or substantially circular arc-shaped beam portions. The base end-side weight portion joining portion extends from a joining portion between the first circular or substantially circular arc-shaped beam portion and the second circular or substantially circular arc-shaped beam portion in the X-axis positive direction, and joined to the base end-side weight portion.

Abstract: A temperature and humidity sensor includes a substrate, a first electrode provided on the substrate, a linear second electrode at least part of which is so provided as to extend along the first electrode, and a moisture sensitive film provided between the part of the second electrode extending along the first electrode and the first electrode. The second electrode has a section that is formed in a spiral shape when viewed from above so as to form an inductor. With this, a precise oscillation circuit can be configured so that a temperature-humidity sensor small in size and capable of being easily manufactured can be provided.

Abstract: A piezoelectric power generating device that includes a piezoelectric element having a first surface and a second surface opposite the first surface, a stopper, and a lever. The stopper has a first contact surface that is in contact with the first surface. The lever includes a contact portion, which includes a second contact surface that is in contact with the second surface, and a displacement portion. The lever is arranged in such a manner as to be rotatable relative to the stopper around a rotation axis such that the second contact surface presses the second surface when the displacement portion rotates relative to the stopper around the rotation axis.