Abstract: A vibration structure that includes a piezoelectric film constructed to deform in a plane direction as a voltage is applied thereto, a frame-shaped member, a vibration portion surrounded by the frame-shaped member in a plan view of the vibration structure, a support portion connecting the vibration portion and the frame-shaped member, and supporting the vibration portion within the frame-shaped member such that the vibration portion vibrates in the plane direction when the piezoelectric film is deformed in the plane direction, a first connection member that connects the piezoelectric film to the vibration portion, and a second connection member that connects the piezoelectric film to the frame-shaped member. Of the connection members, the first connection member is disposed between the center of gravity of the vibration portion and the second connection member.

Abstract: A lens barrel is provided to be attached to a camera body that can reduce an outer diameter of a back end section of the lens barrel even when a member moving in an optical axis direction is disposed on the back end section of the lens barrel. A lens barrel includes a fixed cylinder, a lens holding frame that is disposed on an inner circumferential side of the fixed cylinder and can move in an optical axis direction relative to the fixed cylinder, a guide cylinder that is disposed on an outer circumferential side of the fixed cylinder and can move, together with the lens holding frame, in the optical axis direction relative to the fixed cylinder, and a rotary cylinder that is disposed on the outer circumferential side of the fixed cylinder and can rotate relative to the fixed cylinder. A front end section of the guide cylinder and the rotary cylinder are disposed further on a front side than a connection part that connects the lens holding frame and the guide cylinder.

Abstract: A lens barrel is provided to be attached to a camera body that can reduce an outer diameter of a back end section of the lens barrel even when a member moving in an optical axis direction is disposed on the back end section of the lens barrel. A lens barrel includes a fixed cylinder, a lens holding frame that is disposed on an inner circumferential side of the fixed cylinder and can move in an optical axis direction relative to the fixed cylinder, a guide cylinder that is disposed on an outer circumferential side of the fixed cylinder and can move, together with the lens holding frame, in the optical axis direction relative to the fixed cylinder, and a rotary cylinder that is disposed on the outer circumferential side of the fixed cylinder and can rotate relative to the fixed cylinder. A front end section of the guide cylinder and the rotary cylinder are disposed further on a front side than a connection part that connects the lens holding frame and the guide cylinder.

Abstract: A diaphragm device includes a bottom plate that is formed in an annular shape on which an aperture for an optical path is formed, a plurality of diaphragm blades that are attached to the bottom plate in a rotatable manner, a blade rotation member that rotates the diaphragm blades with respect to the bottom plate, and biasing members that bias the respective diaphragm blades to one side in a rotation direction of the multiple diaphragm blades with respect to the bottom plate. The blade rotation member has cam grooves that cause the diaphragm blades to rotate with respect to the bottom plate to change a diameter of an aperture stop. The diaphragm blades each have a cam protrusion that is fixed thereto and engaged with the cam groove. The diaphragm blades each have a biasing protrusion that protrudes from a surface thereof, is fixed thereto, and is engaged with the biasing member. The cam protrusion is in contact with a side surface of the cam groove by biasing force of the biasing member.

Abstract: An optical diaphragm device includes: diaphragm blades each having a first fixing boss protruding from one surface of a first planar plate toward a side in a first direction and a moving boss protruding from the other surface of the first planar plate toward a side in a second direction; light leakage prevention blades each having a second fixing boss protruding from one surface of a second planar plate toward the side in the first direction and forming a pair with the diaphragm blade; a drive ring with cam grooves; and a housing body accommodating the diaphragm blades, light leakage prevention blades and drive ring. A second cam groove is formed on the light leakage prevention blade. The moving boss of the diaphragm blade is inserted into the second cam groove of the light leakage prevention blade, and is inserted into the first cam groove of the drive ring.

Abstract: An optical diaphragm device includes: diaphragm blades each having a first fixing boss protruding from one surface of a first planar plate toward a side in a first direction and a moving boss protruding from the other surface of the first planar plate toward a side in a second direction; light leakage prevention blades each having a second fixing boss protruding from one surface of a second planar plate toward the side in the first direction and forming a pair with the diaphragm blade; a drive ring with cam grooves; and a housing body accommodating the diaphragm blades, light leakage prevention blades and drive ring. A second cam groove is formed on the light leakage prevention blade. The moving boss of the diaphragm blade is inserted into the second cam groove of the light leakage prevention blade, and is inserted into the first cam groove of the drive ring.

Abstract: Provided is a lens device, including: a lens barrel, a control unit mounted to the lens barrel; and a cable having one end connected to the control unit. In the lens device, a cable housing groove configured to house a part of the cable therein in such a manner that the part of the cable is wound around the cable housing groove from a radially outer side of the lens barrel is formed along a circumferential direction of the lens barrel so as to be exposed.

Abstract: A housing structure of an electronic device according to an embodiment includes a housing and a protruding part. The housing houses a board on which an electronic part is mounted. The protruding part protrudes toward the board from an upper side of the housing positioned above the board. An inner wall of the housing has a groove that is formed around the protruding part.

Abstract: Provided is a lens device, including: a lens barrel, a control unit mounted to the lens barrel; and a cable having one end connected to the control unit. In the lens device, a cable housing groove configured to house a part of the cable therein in such a manner that the part of the cable is wound around the cable housing groove from a radially outer side of the lens barrel is formed along a circumferential direction of the lens barrel so as to be exposed.

Abstract: A belt feeding apparatus includes an endless belt and a supporting member for rotatably supporting the belt. The belt feeding apparatus further includes a setting member for setting, when the belt is deviated from a widthwisely normal zone, an inclination angle of the supporting member to a return angle to return the belt toward the normal zone. The setting member also sets, when a predetermined time elapses from the belt returning to the normal zone, the inclination angle of the supporting member to a balance angle to keep the belt in the zone.

Abstract: An image sensing apparatus in which a plurality of lens units can be exchanged and attached. The image sensing apparatus includes an acquiring unit configured to acquire, from an attached lens unit, lens information including at least an exit pupil distance of the lens unit, an image sensor including a plurality of pixels for converting incident light into electrical charges corresponding to the amount of incident light, a shutter unit configured to shield the image sensor from light, a reset unit configured to sequentially reset the pixels of the image sensor in a traveling direction of the shutter unit prior to starting to shield the image sensor from light using the shutter unit, and a control unit configured to control a timing for resetting the pixels, based on the acquired lens information, where photography is prohibited when the lens information fails to be acquired.

Abstract: A belt feeding apparatus includes an endless belt; a supporting member for rotatably supporting said belt; and setting means for setting, when said belt is deviated from a widthwisely normal zone, an inclination angle of said supporting member to a returning angle to return said belt toward the normal zone, and for setting, when said belt is in the normal zone, the inclination angle of said supporting member to a balance angle.

Abstract: A belt feeding apparatus includes an endless belt and a supporting member for rotatably supporting the belt. The belt feeding apparatus further includes a setting member for setting, when the belt is deviated from a widthwisely normal zone, an inclination angle of the supporting member to a return angle to return the belt toward the normal zone. The setting member also sets, when a predetermined time elapses from the belt returning to the normal zone, the inclination angle of the supporting member to a balance angle to keep the belt in the zone.

Abstract: A belt feeding apparatus includes an endless belt; a supporting member for rotatably supporting said belt; and setting means for setting, when said belt is deviated from a widthwisely normal zone, an inclination angle of said supporting member to a returning angle to return said belt toward the normal zone, and for setting, when said belt is in the normal zone, the inclination angle of said supporting member to a balance angle.

Abstract: An image sensing apparatus in which a plurality of lens units can be exchanged and attached. The image sensing apparatus includes an acquiring unit configured to acquire, from an attached lens unit, lens information including at least an exit pupil distance of the lens unit, an image sensor including a plurality of pixels for converting incident light into electrical charges corresponding to the amount of incident light, a shutter unit configured to shield the image sensor from light, a reset unit configured to sequentially reset the pixels of the image sensor in a traveling direction of the shutter unit prior to starting to shield the image sensor from light using the shutter unit, and a control unit configured to control a timing for resetting the pixels, based on the acquired lens information, where photography is prohibited when the lens information fails to be acquired.

Abstract: A belt feeding apparatus includes an endless belt and a supporting member for rotatably supporting the belt. A setting member is provided for setting, when the belt is deviated from a widthwisely normal zone, an inclination angle of the supporting member to a returning angle to return the belt toward the normal zone. The setting member also sets, when the belt is in the normal zone, the inclination angle of the supporting member to a balance angle.

Abstract: A belt feeding apparatus includes an endless belt and a supporting member for rotatably supporting the belt. The belt feeding apparatus further includes a setting member for setting, when the belt is deviated from a widthwisely normal zone, an inclination angle of the supporting member to a return angle to return the belt toward the normal zone, The setting member also sets, when a predetermined time elapses from the belt returning to the normal zone, the inclination angle of the supporting member to a balance angle to keep the belt in the zone.

Abstract: A belt feeding apparatus includes an endless belt; a supporting member for rotatably supporting said belt; and setting means for setting, when said belt is deviated from a widthwisely normal zone, an inclination angle of said supporting member to a returning angle to return said belt toward the normal zone, and for setting, when said belt is in the normal zone, the inclination angle of said supporting member to a balance angle.

Abstract: A belt feeding apparatus includes an endless belt; a supporting member for rotatably supporting the belt; setting means for setting, when the belt is deviated from a widthwisely normal zone, an inclination angle of the supporting member to a return angle to return the belt toward the normal zone, and for setting, when a predetermined time elapses from the belt returning to the normal zone, the inclination angle of the supporting member to a balance angle to keep the belt in the zone.