Abstract: The cross-sectional shape of a valve hole is an elongated shape having a long axis and a short axis, and has left and right hole side walls that are parallel to each other, a first hole end wall that connects one ends of the left and right hole side walls, and a second hole end wall that connects the other ends of the left and right hole side walls, and the cross-sectional shape of land portions of a spool is an elongated shape having a long axis and a short axis, and has left and right land side walls that are parallel to each other, a first land end wall that connects one ends of the left and right land side walls, and a second land end wall that connects the other ends of the left and right land side walls.

Abstract: A vibration-wave motor includes a vibrator having two protruding parts, a holding member configured to hold the vibrator, a movable member configured to translationally move together with the holding member, a rotating unit configured to allow the holding member to rotate around each of three axes relative to the movable member and to restrict the holding member from translating in each of the three axes relative to the movable member, a urging member configured to urge the holding member and the movable member so that the holding member and the movable member translationally move together, and a restricting unit configured to restrict the holding member from rotating around the rotating unit as a center by the urging member.

Abstract: An integrated multiple valve manifold that is reduced in size and weight by integrally incorporating a plurality of valve mechanisms in one manifold. The one manifold, which is formed of an extruded material through which a fluid supply hole and fluid discharge holes extend, includes a plurality of valve holes each of which communicates with the fluid supply hole and the fluid discharge holes by directly intersecting both of the fluid supply hole and the fluid discharge holes, output ports that are formed so as to individually communicate with the valve holes, spools that are slidably inserted into the valve holes, and electromagnetic pilot valves that are individually attached to one ends or both ends of the valve holes.

Abstract: A driving apparatus according to the present invention includes: a movable part including a vibrator including a piezoelectric element and a pressurization part for bringing the vibrator into pressure contact with a base part by applying impression force to the vibrator, the movable part being linearly driven; and a cover part for receiving reactive force of the impression force through intermediation of a rolling part, the cover part being fixed to the base part by a holding part extending in a direction crossing a movement direction of the movable part, in which the rolling part is sandwiched by a guide part of the movable part extending in the movement direction of the movable part and a cover guide part of the cover part extending in the movement direction of the movable part, and the movable part is positioned on an outer side beyond a side of the holding part facing the movable part.

Abstract: A motor includes a vibrator, a mover guided by a guide member to move with the vibrator, and rollers sandwiched between the mover and the guide member. The mover includes first and second groove shapes formed along a moving direction of the vibrator to separate from each other. The guide member includes first and second guide parts opposite to the first and second groove shapes, respectively. The rollers are sandwiched among the first and second groove shapes, and the first and second guide parts. On a rear side of a surface of the guide member where the first and second guide parts are formed, the mover includes regulating parts regulating a movement of the guide member to the rear side. When the guide member abuts against the regulating parts, part of each of the rolling balls is positioned inside the first and second groove shapes.

Abstract: A motor includes a first vibrator, a plurality of biasing parts that are disposed around the first vibrator and that presses the first vibrator onto a contacting member in contact with the first vibrator, a first pressing member that is biased by the plurality of biasing parts and that includes a pressing part pressing the first vibrator by biasing force of the plurality of biasing parts, and a second pressing member that is biased by the plurality of biasing parts. The first vibrator and the contacting member move relatively by vibrations that occur in the first vibrator. The first and second pressing members integrally moves while the first vibrator moves. The first pressing member and the first vibrator are tiltable around a first direction orthogonal to both of a moving direction of the first vibrator and a biasing direction of the plurality of biasing parts.

Abstract: An image generating apparatus includes a first generator configured to obtain a first image using a first camera with a first angle of view, a second generator configured to obtain a second image using a second camera with a second angle of view wider than the first angle of view, and a generator configured to generate an observation image using the first image and the second image. The observation image is observable as a double image in which the first image and the second image are superimposed on each other in an area that contains a center of the first image.

Abstract: Provided is a light amount adjusting apparatus comprising a base that has a rotary drive unit, and a rotating unit that is arranged rotatably about a predetermined axis with respect to the base, and drives aperture blades by rotating with the rotary drive unit, wherein one of the base and the rotating unit is provided with two arc-shaped parts to be engaged around the axis, the other is provided with two engaging parts engaging with each of the arc-shaped parts to be engaged.

Abstract: A linear ultrasonic motor includes a vibrator having a piezoelectric element, a movable part applying a pressing force to the vibrator and bringing the vibrator into pressed contact with a base part, a cover part being fixed to the base part, a rolling part being rollably held between a movable guide part of the movable part and a cover guide part of the cover part, and a body to be driven having a transmission member that is pivotably supported and able to move only in the movable direction. The transmission member includes a bias part that abuts on a transmission part of the movable part and applies a biasing force of biasing the movable part to the rolling part to the transmission part. The rolling part is held by a resultant force of the pressing force or a reaction force of the pressing force, and the biasing force.

Abstract: A displacement detecting apparatus includes a first electrode having a base electrode segment and a plurality of detecting electrode segments, a second electrode having a plurality of periodically arranged electrode segments, and displaceable relative to the first electrode, and a detector configured to detect a displacement of the second electrode relative to the first electrode based on a capacitance between the first electrode segment and the second electrode. An area of an overlapping region between the base electrode segment and the electrode segments in the second electrode is constant.

Abstract: A driving apparatus according to the present invention includes: a movable part including a vibrator including a piezoelectric element and a pressurization part for bringing the vibrator into pressure contact with a base part by applying impression force to the vibrator, the movable part being linearly driven; and a cover part for receiving reactive force of the impression force through intermediation of a rolling part, the cover part being fixed to the base part by a holding part extending in a direction crossing a movement direction of the movable part, in which the rolling part is sandwiched by a guide part of the movable part extending in the movement direction of the movable part and a cover guide part of the cover part extending in the movement direction of the movable part, and the movable part is positioned on an outer side beyond a side of the holding part facing the movable part.

Abstract: An optical device with an imaging device for forming an image of a subject with a lens device, including a lens unit, a movable member making the lens unit movable within a plane orthogonal to the optical axis of the lens unit, an image pickup device imaging the subject image formed by the lens device, a fixed member limiting the movement of the movable member in the optical axis direction, at least three balls rolling between the movable and fixed member, a vibration detecting unit, and a pitch and yaw direction drive units for driving the movable member in the pitch and yaw directions within the optical axis orthogonal plane, respectively. The pitch and yaw direction drive units press the movable member toward the fixed member side by means of magnetic pressing forces caused by magnetic attractive action between drive magnets and yokes.

Abstract: A linear ultrasonic motor includes a vibrator having a piezoelectric element, a movable part applying a pressing force to the vibrator and bringing the vibrator into pressed contact with a base part, a cover part being fixed to the base part, a rolling part being rollably held between a movable guide part of the movable part and a cover guide part of the cover part, and a body to be driven having a transmission member that is pivotably supported and able to move only in the movable direction. The transmission member includes a bias part that abuts on a transmission part of the movable part and applies a biasing force of biasing the movable part to the rolling part to the transmission part. The rolling part is held by a resultant force of the pressing force or a reaction force of the pressing force, and the biasing force.

Abstract: A linear ultrasonic motor includes a vibrator having a piezoelectric element, a movable part applying a pressurization force to the vibrator and bringing the vibrator into pressurized contact with a base part, a cover part being fixed to the base part, a rolling part being rollably held between a movable guide part of the movable part and a cover guide part of the cover part, and a body to be driven having a transmission member that is pivotably supported and being able to move only in the movable direction. The transmission member includes a bias part that abuts on a transmission part of the movable part and applies a biasing force of biasing the movable part to the rolling part, to the transmission part. The rolling part is held by a resultant force of the pressurization force or a reaction force of the pressurization force, and the biasing force.

Abstract: Provided is a light amount adjusting apparatus comprising a base that has a rotary drive unit, and a rotating unit that is arranged rotatably about a predetermined axis with respect to the base, and drives aperture blades by rotating with the rotary drive unit, wherein one of the base and the rotating unit is provided with two arc-shaped parts to be engaged around the axis, the other is provided with two engaging parts engaging with each of the arc-shaped parts to be engaged.

Abstract: An optical device with an imaging device for forming an image of a subject with a lens device, including a lens unit, a movable member making the lens unit movable within a plane orthogonal to the optical axis of the lens unit, an image pickup device imaging the subject image formed by the lens device, a fixed member limiting the movement of the movable member in the optical axis direction, at least three balls rolling between the movable and fixed member, a vibration detecting unit, and a pitch and yaw direction drive units for driving the movable member in the pitch and yaw directions within the optical axis orthogonal plane, respectively. The pitch and yaw direction drive units press the movable member toward the fixed member side by means of magnetic pressing forces caused by magnetic attractive action between drive magnets and yokes.

Abstract: An encoder includes a base, a cylinder rotatable in a circumferential direction with respect to the base, at least three supporting portions rotatably supporting the cylinder with respect to the base, a connecting portion provided on the cylinder and rotatable within a first range between two supporting portions of the at least three supporting portions, a scale attached to the cylinder, and a detector configured to detect a position of the cylinder with respect to the base by using the scale, and the detector is arranged within a second range different from the first range.