Abstract: A lens barrel configured such that an optical image stabilization lens in the lens barrel is retreated from the optical axis of the lens barrel to be accommodated in a desired position through a series of operations is provided. The lens barrel includes a lens group configured to be moved in the direction of the optical axis in response to a zooming or focusing operation, an Optical Image Stabilization (OIS) lens movable in a direction perpendicular to the optical axis, and an OIS lens assembly which is equipped with the OIS lens, the OIS lens assembly being arranged to retreat the OIS lens from the optical axis and to move the OIS lens in a direction following the optical axis at the time of retraction of the lens group.

Abstract: Provided is a light amount control device eliminating a deviation in image forming position over the entire area of the variable range of an aperture due to an ND filter and assuring smooth stopping operation. The light amount control device of the present invention includes: a first shading member and a second shading member which are adapted to move within a plane perpendicular to an optical axis to vary an area of a light passage opening; a lever member which is connected with the first shading member and the second shading member and which is rotatable; an actuator for driving the lever member; and an ND filter mounted to the first shading member. The ND filter is configured to cover an entirety of the light passage opening in an open state, and the second shading member has a guard portion which, with the light passage opening being in a closed state, is arranged between the lever member and the ND filter, preventing the ND filter from coming into contact with the lever member.

Abstract: Provided is a light amount control device eliminating a deviation in image forming position over the entire area of the variable range of an aperture due to an ND filter and assuring smooth stopping operation. The light amount control device of the present invention includes: a first shading member and a second shading member which are adapted to move within a plane perpendicular to an optical axis to vary an area of a light passage opening; a lever member which is connected with the first shading member and the second shading member and which is rotatable; an actuator for driving the lever member; and an ND filter mounted to the first shading member. The ND filter is configured to cover an entirety of the light passage opening in an open state, and the second shading member has a guard portion which, with the light passage opening being in a closed state, is arranged between the lever member and the ND filter, preventing the ND filter from coming into contact with the lever member.

Abstract: Lens barrel or an optical apparatus with a lens barrel comprising: a lens unit having an optical axis and forming an optical image, the lens unit having a fixed lens component and a movable lens component; and a lens housing for containing the lens unit, the lens housing having a first housing and a second housing divided in a direction along the optical axis; wherein: the first housing has a lens-holding portion for holding the fixed lens component; and the second housing has a pickup-device holding portion for holding an image pickup device for taking the optical image obtained by the lens unit.

Abstract: An optical apparatus, such as a lens barrel, includes a first unit holding member and a second unit holding member arranged to hold a first optical unit and a second optical unit, respectively, a driven member arranged to be driven to move in an optical axis direction, and a cam member of a plate-like shape having a cam part, the cam member being capable of taking a first state in which the cam member rotates around a predetermined axis, without moving in the optical axis direction, according to movement of the driven member in the optical axis direction, and a second state, different from the first state, in which the cam member moves in the optical axis direction according to movement of the driven member in the optical axis direction, wherein, when taking each of the first state and the second state, the cam member drives the first unit holding member and the second unit holding member in the optical axis direction. More specifically, a normal zooming function is performed in the first state.

Abstract: Lens barrel or an optical apparatus with a lens barrel comprising:

Abstract: A computer mouse capable of stimulating therapeutic points of the human body to reduce user fatigue. Projection bodies for stimulating the therapeutic points are provided on the main body and click buttons of the computer mouse.

Abstract: In a lens barrel having an electromechanical transducer for driving an iris mechanism, a zooming motor for driving a zoom mechanism and focusing motor for driving a focusing mechanism, at least one of the zooming motor and the focusing motor is arranged to be a geared motor in which a motor part and a reduction gear part are interconnected in the direction of an output shaft; and the motor part of the geared motor is disposed in front of the reduction gear part as viewed in the direction of the optical axis of the lens barrel.