Abstract: A mirror with a reflective layer formed thereon is supported within a frame-shaped support by two U-shaped arms. A plate-like arm connects fixation points (Q1, Q2), and a plate-like arm connects fixation points (Q3, Q4). A pair of piezoelectric elements (E11, E12) disposed along a longitudinal axis (L1) on an upper surface of an outside bridge of the arm, and a single piezoelectric element (E20) disposed along the longitudinal axis (L2) on the upper surface of an inside bridge. Similarly, a pair of piezoelectric elements (E31, E32) disposed on an upper surface of an outside bridge of the arm, and a single piezoelectric element (E40) disposed on the upper surface of an inside bridge. When a positive drive signal is applied to the piezoelectric elements (E11, E20, E31, E40) and a negative drive signal is applied to the piezoelectric elements (E12, E32), the mirror is displaced efficiently.

Abstract: A position correction device according to an embodiment includes a movable part and a pressing part. The movable part is capable of moving a holding part that holds a connection object back and forth in each of a second direction that is orthogonal to a first direction where the holding part is moved therein in order to connect the connection object to a target connector, and a rotational direction where the holding part is rotated therein around an axis along a third direction that is orthogonal to each of the first direction and the second direction as a center. The pressing part presses the movable part that moves in the second direction to move the movable part to a neutral position in the second direction and presses the movable part that moves in the rotational direction to move the movable part to a neutral position in the rotational direction.

Abstract: An electrical connector includes a plug connector and a locking member. The plug connector includes a conductive outer conductor shell electrically connected to a contact of a mating connector, and the outer conductor shell includes a cylindrical fitting portion fitted to a ground contact member. An outer diameter of the fitting portion is configured to be enlarged when the fitting portion is attached to or removed from the ground contact member, and the locking member includes a regulation portion capable of regulating the enlargement of the fitting portion. A guide portion is configured to guide the movement of the regulation portion with respect to the fitting portion, as the regulation portion is moved between a regulation position and a standby position.

Abstract: An electrical connector includes a plurality of conductive terminals, an insulating housing that holds the plurality of conductive terminals and that has an accommodating portion to accommodate a flexible printed circuit provided with a plurality of connection terminal portions electrically connected to the plurality of conductive terminals. A metallic reinforcing portion is located in an upper wall portion of a main body portion of the housing that partitions the accommodating portion.

Abstract: Electromagnetic shielding about both of electric connectors, which are in a mutually mated state, can be sufficiently carried out by a simple configuration. Shield wall portions composed of electrically-conductive members opposed to contact connecting portions (board connecting portions) of a plurality of contact members arranged in multipolar shapes are provided; electromagnetic shielding functions with respect to the contact connecting portions in the respective electric connectors are obtained well by the respective shield wall portions; and, when both of the electric connectors are mated with each other, the shield wall portions are configured to be in an inner/outer double disposition relation in which they are opposed to each other and efficiently block the gaps between the shield wall portions and wiring boards so that sufficient EMI measures can be expected.

Abstract: Electromagnetic shielding about both of electric connectors, which are in a mutually mated state, can be sufficiently carried out by a simple configuration. Shield wall portions composed of electrically-conductive members opposed to contact connecting portions (board connecting portions) of a plurality of contact members arranged in multipolar shapes are provided; electromagnetic shielding functions with respect to the contact connecting portions in the respective electric connectors are obtained well by the respective shield wall portions; and, when both of the electric connectors are mated with each other, the shield wall portions are configured to be in an inner/outer double disposition relation in which they are opposed to each other and efficiently block the gaps between the shield wall portions and wiring boards so that sufficient EMI measures can be expected.

Abstract: To be capable of easily avoiding lengthening and heightening with a simple configuration even in a case where relatively large electric power is supplied. Provided is a configuration in which the conductor resistance of a plurality of contact members 13 and 14 is reduced in accordance with an increment in thickness and energization allowable electric power is increased by one of more of the contact members 13 and 14 being formed thicker than the rest so that an increase in the size of an electric connector such as lengthening and heightening is prevented even in a case where the supply electric power with respect to the electric connector is large and the retention of a flat plate-shaped signal transmission medium F is enhanced by contact portions of the thickness-increased contact members 13 and 14 being pressure-welded to the flat plate-shaped signal transmission medium F.

Abstract: To allow a fit-in state between electrical connectors to be firmly maintained, elastic arm-shaped members provided to a conductive shell member so as to elastically displace to a direction orthogonal to a fit-in direction of a mating connector are each provided with an engaging piece having a connector contact surface which the mating connector faces from the depth in the fit-in direction and a shell contact surface which a part of the conductive shell member faces from the front in the fit-in direction. When an external force is applied to the mating connector in a fit-in state to a removing direction opposite to the fit-in direction, the engaging piece is brought into a state of being interposed between the mating connector and the conductive shell member. This avoids a situation in which the engaging piece is removed from the mating connector to cause a lock release.

Abstract: An earphone (1) is provided that includes a first vibration plate (31) for vibration by a first piezoelectric element (32) and a cylindrically-shaped casing (2) for transmission of the vibration of the first vibration plate (31) to ear canal cartilage. The first vibration plate (31) is disposed inside the casing (2). The earphone (1) has a structure whereby an amount of sound leakage, which is due to transmission of the vibration of the first vibration plate (31) to the air, is low. The ear canal cartilage transmits sound to the eardrum of only one ear, thereby enabling localization of sound. The woofer (3) maintains sound pressure at low frequencies.

Abstract: An electrical coaxial connector comprising a connector body including a signal contact member, a grounding contact member and a housing member for supporting the signal contact member and the grounding contact member, and a locking component made to be separate from the connector body for engaging detachably with the grounding contact member, wherein the locking component is provided thereon with a displaceable engaging portion which is operative to lock an annular engaging portion of the grounding contact member from the outside of the same at a position for closing partially a slit provided on the annular engaging portion when the locking component is caused to engagement with the grounding contact member, so that the annular engaging portion of the grounding contact member is prevented from being subjected to expanding deformation to widen the slit.

Abstract: To shorten a contact member to a fit-in direction to allow a decrease size, a fixing piece 12c of a contact member 12 is arranged in a region Q where an electrode part 22a of a mating connector 20 slides over the contact member 12. Thus, the region Q where the electrode part 22a of the mating connector 20 slides over the contact member 12 and a region where the fixing piece 12c of the contact member 12 is arranged are in a state of overlapping each other in a direction of fitting in the mating connector 20, and the contact member 12 can be shortened to the direction of fitting in the mating connector 20.

Abstract: By a simple configuration, contact members can be well retained with a housing in a mutually opposed state, and productivity can be improved. When the contact members in the mutually opposed state are to be attached to the housing, a contact retainer prepared by molding in advance is used by disposing the contact retainer in part of the contact opposed region. As a result, the contact members are stably retained in the mutually opposed state even in injection molding molds. Even in a case in which the contact members normally cannot be retained in the mutually opposed state in the injection molding molds, the housing and the contact members can be integrally molded by well retaining the contact members in the mutually opposed state by using the contact retainer and a contact retainer auxiliary and executing an injection molding process.

Abstract: A shell member that is ground-connected to a connected object is constituted by a first shell that faces the connected object and entirely covers a contact member and a second shell that faces the first shell in a part between a connecting object and the connected object. Each of the first and second shells is provided with ground contact points with a ground conducting path of the connecting object and a ground conducting path of the connected object, with a signal transmission path sandwiched between ground paths by the first and second shells and configured to achieve satisfactory electromagnetic shielding of the signal transmission path.

Abstract: An electrical coaxial connector comprising a connector body including a signal contact member, a grounding contact member and a housing member for supporting the signal contact member and the grounding contact member, and a locking component made to be separate from the connector body for engaging detachably with the grounding contact member, wherein the locking component is provided thereon with a displaceable engaging portion which is operative to lock an annular engaging portion of the grounding contact member from the outside of the same at a position for closing partially a slit provided on the annular engaging portion when the locking component is caused to engagement with the grounding contact member, so that the annular engaging portion of the grounding contact member is prevented from being subjected to expanding deformation to widen the slit.