Abstract: A connection structure connecting an end of a distribution cord on a shift lever to an end of a distribution cord on a device main body. The connection structure provides electric conduction, for example, with a switch disposed on a control knob of a shift change lever device. The structure includes a control knob having a grip portion and a switch or the like disposed on the control knob. The control knob is securely connected and integrated by axial fitting to the upper end of a driving base pivoted swingably at a lower end. A conducting flange is molded integrally with the driving base near an upper end of the driving base. Connecting conductor male terminals protrude from a lower end of the grip portion and are electrically connected with the switch. Connecting conductor female terminals are fitted into the conducting flange at respective positions opposing to the connecting conductor male terminals and are connected with the distribution cord on the device main body.

Abstract: A lens barrel of simplified structure including a focusing member supported rotatably about the optical axis and having a gear portion, a lens support member moved in the axial direction in response to the rotation of the focusing member about the optical axis, a driving source provided in a part of the lens support member, and a gear mechanism provided in a part of the lens support member and meshing with the gear portion of the focusing member.

Abstract: An optical accessory includes a bayonet mount attachable to a camera body side mount and accessory side connection terminals which contact the camera body side connecting terminals when the accessory side bayonet mount is attached to the camera body side bayonet mount. The accessory side connecting terminals have their end portions arranged to project in the direction of the optical axis behind the accessory side bayonet mount. In one preferred embodiment, the optical accessory further includes a member having a projection projecting in the direction of the optical axis behind the accessory side connecting terminals. The projection is positioned on the inner circumference side of the accessory side connecting terminals and is arranged near to the accessory side connection terminals. In another preferred embodiment, the end portions of the connecting terminals have plural height differences, and a contact seat also is provided for holding the accessory side connecting terminals.

Abstract: A lens barrel includes a stationary tube secured to the inner side of a stationary lens barrel member with a given space kept between them, and a motor disposed within the space. A helicoidal surface is arranged along the inner circumference of the stationary tube to be in screwed engagement with the helicoidal surface of a lens-carrying frame arranged to carry lenses which are shiftable in the direction of their optic axis, and a connecting member extends to the inner circumference of the stationary tube to cause the rotation of a rotary tube which has a toothed part engaging the output gear of the motor to be transmitted to the lens-carrying frame.

Abstract: A built-in motorized lens mounting includes a fixed tube, a zoom actuating ring axially movably supported relative to the fixed tube, a focusing lens holder movably supported at least in the axial direction relative to the zoom actuating ring, an electric motor fixedly secured to the zoom actuating ring, and a driving power transmitting system using the rotation of the motor as a drive source to move the lens holder axially relative to the zoom actuating ring.

Abstract: A connector structure for a camera having bayonet mounts on the side of a camera body and on the side of an accessory, the camera body and the accessory being interconnected by rotating the mounts round relative to each other and being disconnected by reversely rotating the mounts. A group of contact pins is arranged at a camera body side connector to be slidingly brought into contact with a group of contact pins arranged at an accessory side connector by the rotational mounting action. The group of contact pins at the accessory side connector being in paired contact with the pins of the group of contact pins at the camera body side connector to permit communication between the camera body and the accessory upon completion of the mounting action. A first conductive member is arranged to be electrically connected in parallel with a first contact pin among the group of contact pins arranged at one of the connectors.

Abstract: A lens barrel includes a hollow rotary ring rotatable about the optic axis which is disposed within the hollow of a hollow fixed cylinder with a bearing interposed therebetween, a moving cylinder movable in response to rotation of the rotary ring which is disposed within the hollow of the rotary ring, a vibration wave motor which is disposed between the diametrical directions of the fixed cylinder and the rotary ring, and a rotor which is substantially secured to the rotary ring.

Abstract: An arrangement for adjusting the position of a lens held in a barrel in a lens mounting for performing optical function such as focusing or zooming by moving an optical member or members along an optical axis as in the interchangeable objective. The barrel is divided into two parts each containing a lens, and the relative positions of the first and second barrels are infinitely adjusted by a cam.

Abstract: A lens barrel includes a stationary tube secured to the inner side of a stationary lens barrel member with a given space kept between them, and a motor disposed within the space. A helicoidal surface is arranged along the inner circumference of the stationary tube to be in screwed engagement with the helicoidal surface of a lens-carrying frame arranged to carry lenses which are shiftable in the direction of their optic axis, and a connecting member extends to the inner circumference of the stationary tube to cause the rotation of a rotary tube which has a toothed part engaging the output gear of the motor to be transmitted to the lens-carrying frame.

Abstract: In the disclosed mechanical mounting for a zoom lens, a body tube and a single actuator barrel are provided with an intermediate sleeve therebetween, and a variator lens cell and a rotary ring are arranged inside the body tube, whereby a driving torque for the variator lens cell is transmitted from the intermediate sleeve to the rotary ring.

Abstract: In an actuating device for a lens assembly, the lens system of the assembly is mounted in a lens holding member which must be axially moved for focusing the lens assembly. In order to effect axial movement of the holding member, an operating member is fitted on the outer diameter of a cylindrical lens barrel of the assembly to be rotatable about the optical axis of the assembly, with the operating member having an inner peripheral surface wherein there is formed a cam recess for controlling the degree of axial movement of the lens holding member. A cam follower member mounted on the lens holding member is fitted in the cam recess of the operating member and rotative motion of the operating member is converted into axial motion of the lens holding member.

Abstract: An interchangeable lens assembly for a camera is formed in two parts with the first part being removably attachable to the camera body and the second part being removably attachable to the first part. A diaphragm mechanism is arranged in the second part of the assembly and diaphragm control arms extend through the first part of the assembly into operative connection with the camera. Various operative modifications of the lens assembly are possible and because of the bipartite structure of the lens assembly, greater versatility with regard to interchangeability of operative components is facilitated.

Abstract: An interchangeable lens unit is formed with an adapter shell rotatable relative to a unit housing and maintained stationary along with signal members of a diaphragm therein during coupling and decoupling of the lens unit effected by rotating a bayonet fixedly carried on the unit housing relative to a camera body. In rotating the unit in a loosening direction, an index mechanism operates to permit disengagement of a female bayonet of the unit away from a male bayonet of the camera body only when the unit housing is accurately oriented relative to the adapter shell. In a later coupling operation, it is therefore insured that the signal members can be brought into operative connection with respective operational members of a diaphragm control mechanism which is disposed in the camera body despite the presence of a significant clearance between the male and female bayonets.

Abstract: An interchangeable lens assembly including an adapter member which is held in a predetermined position relative to a camera when the lens assembly is mounted on the camera and a lens barrel structured to be rotatable relative to the adapter member during mounting of the lens assembly on the camera, the lens barrel having affixed thereto coupling means for coupling the lens assembly with the camera. The invention is directed particularly to the support structure of the lens barrel for rotatably supporting by means of the adapter member the signal transmission mechanism for transmitting exposure control signals between the lens assembly and the camera and an operation member for operating the diaphragm device of the lens assembly in accordance with operational parameters developed from the camera side of the lens assembly.

Abstract: An interchangeable lens assembly for a camera is formed with a bayonet coupling affixed to the lens barrel with both being rotatable relative to an adapter shell. Upon attachment of the lens assembly to a camera housing, a detent pin is retracted from a fitted hole found in a radial flange of the adapter shell and the lens barrel is thereby rendered rotatable together with the bayonet coupling with reference to both the adapter shell and the camera housing while the adapter shell is held stationary relative to the camera housing during mounting and dismounting of the lens assembly.

Abstract: An interchangeable lens assembly for a camera including a lens barrel having a diaphragm mechanism mounted therewith, a bayonet coupling mechanism fixed on the lens barrel and adapted to be brought into engagement with a complementary coupling mechanism on the camera for releasably mounting the lens assembly in operative position on the camera, an adapter shell mounted on the lens barrel in rotative relationship relative thereto for establishing predetermined relative positioning between the interchangeable lens assembly and the camera, and a retainer mechanism adapted to be interposed between the adapter shell and the camera for retaining the adapter shell in fixed rotative position relative to the camera during mounting and dismounting of the interchangeable lens assembly. The lens assembly also includes a diaphragm presetting mechanism for transmitting signals representative of a diaphragm aperture between the lens assembly and the camera.