Abstract: A lens apparatus includes a first lens holding member configured to hold a lens, and an actuator configured to move the first lens holder in an optical axis direction. The lens apparatus transfers to a retracted state by moving the first lens holding member to a retracted position via the actuator from an image picking-up state. The lens apparatus further includes a stopper configured to move in a direction different from the optical axis direction between a first position at which the stopper restricts a movement of the first lens holding member and a second position off the first position, and a driving member configured to move the stopper from the second position to the first position relative to the first lens holding member that has moved to the retreated position.

Abstract: A lens barrel which is capable of increasing the total length of the lens barrel in a shooting state even in a case where the collapsed lens barrel length is short, with a simple construction. A shooting optical system is disposed movably in an optical axis direction. A lens barrel driving member moves the shooting optical system in the optical axis direction while rotating around the optical axis. A lens barrel driving member moving unit moves the lens barrel driving member in the optical axis direction in a transition region during which the lens barrel moves between a shooting state and a non-shooting state while the driving member rotating.

Abstract: The lens apparatus includes a first barrel member, a second barrel member, a first rolling bearing and a second rolling bearing. The second barrel member includes a cam for moving a lens unit in an optical axis direction, is disposed inside or outside the first barrel member and rotatable around an optical axis with respect to the first barrel member. The first rolling bearing prevents relative displacements of the first and second barrel members in the optical axis direction and in a radial direction. The first rolling bearing is rotatable between the first and second barrel members. The second rolling bearing prevents the relative displacement of the first and second barrel members in the radial direction. The second rolling bearing is rotatable between the first and second barrel members. The first and second rolling bearing are arranged at positions away from each other in the optical axis direction.

Abstract: A lens barrel which is capable of increasing the total length of the lens barrel in a shooting state even in a case where the collapsed lens barrel length is short, with a simple construction. A shooting optical system is disposed movably in an optical axis direction. A lens barrel driving member moves the shooting optical system in the optical axis direction while rotating around the optical axis. A lens barrel driving member moving unit moves the lens barrel driving member in the optical axis direction in a transition region during which the lens barrel moves between a shooting state and a non-shooting state while the driving member rotating.

Abstract: When an external force that is equal to or greater than the urging force of a first ball spring is applied to a first lens holder, a first ball follower is dislocated from a first cam groove, and a first external force receiving groove and a first external force receiving pin are brought into engagement to receive the external force. When the external force that has been applied to the first lens holder is released, the first ball follower is restored to the first cam groove due to the urging force of the first ball spring.

Abstract: A vibration wave driven apparatus includes a vibrator configured to generate vibration, a rotor configured to be in frictional contact with the vibrator and to rotate about an axis of rotation, and a transmitting member configured to rotate about the axis and to transmit rotation of the rotor to an external component. A part of the transmitting member forms a worm portion of a worm gear.

Abstract: The lens apparatus includes a first barrel member, a second barrel member, a first rolling bearing and a second rolling bearing. The second barrel member includes a cam for moving a lens unit in an optical axis direction, is disposed inside or outside the first barrel member and rotatable around an optical axis with respect to the first barrel member. The first rolling bearing prevents relative displacements of the first and second barrel members in the optical axis direction and in a radial direction. The first rolling bearing is rotatable between the first and second barrel members. The second rolling bearing prevents the relative displacement of the first and second barrel members in the radial direction. The second rolling bearing is rotatable between the first and second barrel members. The first and second rolling bearing are arranged at positions away from each other in the optical axis direction.

Abstract: A lens apparatus includes a first lens holding member configured to hold a lens, and an actuator configured to move the first lens holder in an optical axis direction. The lens apparatus transfers to a retracted state by moving the first lens holding member to a retracted position via the actuator from an image picking-up state. The lens apparatus further includes a stopper configured to move in a direction different from the optical axis direction between a first position at which the stopper restricts a movement of the first lens holding member and a second position off the first position, and a driving member configured to move the stopper from the second position to the first position relative to the first lens holding member that has moved to the retreated position.

Abstract: When an external force that is equal to or greater than the urging force of a first ball spring is applied to a first lens holder, a first ball follower is dislocated from a first cam groove, and a first external force receiving groove and a first external force receiving pin are brought into engagement to receive the external force. When the external force that has been applied to the first lens holder is released, the first ball follower is restored to the first cam groove due to the urging force of the first ball spring.

Abstract: A lens barrel which is capable of increasing the total length of the lens barrel in a shooting state even in a case where the collapsed lens barrel length is short, with a simple construction. A shooting optical system is disposed movably in an optical axis direction. A lens barrel driving member moves the shooting optical system in the optical axis direction while rotating around the optical axis. A lens barrel driving member moving unit moves the lens barrel driving member in the optical axis direction in a transition region during which the lens barrel moves between a shooting state and a non-shooting state while the driving member rotating.

Abstract: A lens position control apparatus is disclosed which comprises a variable power lens unit that moves along the optical axis; a focusing lens unit; a drive unit for driving the variable power lens unit along the optical axis; a member defining the reference position to be used prior to execution of a focusing operation of the focusing lens unit, the member being movable along the optical axis in accordance with the movement of the variable lens unit; and a calculating unit for calculating the driven amount of the focusing lens unit from the reference position in association with the focusing operation thereof, wherein the focus lens is moved to the reference position first, and then driven again based on the distance moved.

Abstract: A shake correcting apparatus including a bottom board, a supporting frame for supporting a correction system, and an electromagnetic driving system formed of a coil unit and a permanent magnet, where shake correction is performed by driving the correction system using the electromagnetic driving system. A space for accommodating a thickness variation in the coil unit is provided at a surface of the coil unit not opposing the permanent magnet. In this manner, a predetermined gap between the coil unit and the permanent magnet may be achieved.

Abstract: A lens position control apparatus is disclosed which comprises a variable power lens unit that moves along the optical axis; a focussing lens unit; a drive unit for driving the variable power lens unit along the optical axis; a member defining the reference position to be used prior to execution of a focussing operation of the focussing lens unit, the member being movable along the optical axis in accordance with the movement of the variable lens unit; and calculating means for calculating the driven amount of the focussing lens unit from the reference position in association with the focussing operation thereof, wherein the focus lens is moved to the reference position first, and then driven again based on the distance moved.

Abstract: A shake correcting apparatus is provided, which includes a bottom board, a supporting frame for supporting a correction system, and electromagnetic driving means formed of a coil unit and a permanent magnet, and wherein shake correction is performed by driving the correction system using the electromagnetic driving means. In the shake correcting apparatus formed as above according to the present invention, a space for absorbing the thickness variation in the coil unit or in the permanent magnet is arranged on at least one of opposite surfaces to the opposing surface between the coil unit and the permanent magnet, so that a gap between the coil unit and the permanent magnet is made constant.

Abstract: A camera includes a body member (1) having a first portion (1c), a second portion (1b) and a third portion (1d) which are integrally formed. The first portion is provided for forming at least a part of a cartridge chamber into which a film cartridge is loaded, the second portion is provided for forming at least a part of a spool chamber in which a spool is disposed to wind thereon a film of the film cartridge, the third portion is provided for connection between the first portion and the second portion and is disposed behind the film in a photo-taking optical axis direction to overlap the film in the photo-taking optical axis direction while the film is transported. Accordingly, the third portion, which serves as a connection part, is arranged to have a large width in a direction perpendicular to the direction of film transport and along the surface of the film, so that the strength of the connection part can be increased.

Abstract: A shutter device includes shutter blades, a motor which drives the shutter blades, diaphragm blades which are driven by the motor to perform opening and closing operations, and a transmission mechanism which transmits a driving force of the motor to the shutter blades and the diaphragm blades. In the shutter device, the transmission mechanism transmits the driving force of the motor to the shutter blades and the diaphragm blades in such a manner that driving of the shutter blades by the motor and driving of the diaphragm blades by the motor are made sequential.