Abstract: An apparatus includes a lens, a holder, and a retainer. The lens is held with the lens being pressed against the holder by the retainer in a direction parallel to an optical axis of the lens. The lens includes a first outer periphery, a second outer periphery, a first contact portion in contact with the holder, and a second contact portion in contact with the retainer. In a direction orthogonal to the optical axis, the first outer periphery, the first contact portion and the second contact portion are arranged farther away from the optical axis than the second outer periphery. The holder is configured to hold the lens such that the holder is fitted to the second outer periphery and is not in contact with the first outer periphery.

Abstract: An image stabilization apparatus for a lens apparatus that moves an image stabilizing lens perpendicularly to optical axis includes a fixed barrel, a lens moving frame holding the image stabilizing lens and movable relative to the fixed barrel perpendicularly to the optical axis, an actuator that drives the lens moving frame relative to the fixed barrel, and the encoders used to determine the position of the lens moving frame relative to the fixed barrel. Each encoder includes a scale fixed to either the lens moving frame or the fixed barrel and a detector fixed to the other, the scale is arranged so that its grating is arranged in a radial direction about the optical axis so that the encoder has sensitivity to radial displacement of the lens moving frame about the optical axis which is higher than sensitivity to rotational displacement of the lens moving frame about the optical axis.

Abstract: Provided is a lens driving apparatus, including: an ultrasonic motor including a drive slider having an output shaft provided so as to project in a direction perpendicular to a driving direction of the drive slider; a lens moving frame configured to hold an optical system, and having a hole into which the output shaft is to be inserted; and a fixed portion configured to support the lens moving frame so that the lens moving frame is movable in a direction perpendicular to an optical axis, hold the ultrasonic motor so that the ultrasonic motor is removable from a side opposite to a side where the lens moving frame is provided, and have a through hole passing through the fixed portion in a direction of the optical axis.

Abstract: An image stabilization apparatus for a lens apparatus that moves an image stabilizing lens perpendicularly to optical axis includes a fixed barrel, a lens moving frame holding the image stabilizing lens and movable relative to the fixed barrel perpendicularly to the optical axis, an actuator that drives the lens moving frame relative to the fixed barrel, and the encoders used to determine the position of the lens moving frame relative to the fixed barrel. Each encoder includes a scale fixed to either the lens moving frame or the fixed barrel and a detector fixed to the other, the scale is arranged so that its grating is arranged in a radial direction about the optical axis so that the encoder has sensitivity to radial displacement of the lens moving frame about the optical axis which is higher than sensitivity to rotational displacement of the lens moving frame about the optical axis.

Abstract: Provided is a lens driving apparatus, including: an ultrasonic motor including a drive slider having an output shaft provided so as to project in a direction perpendicular to a driving direction of the drive slider; a lens moving frame configured to hold an optical system, and having a hole into which the output shaft is to be inserted; and a fixed portion configured to support the lens moving frame so that the lens moving frame is movable in a direction perpendicular to an optical axis, hold the ultrasonic motor so that the ultrasonic motor is removable from a side opposite to a side where the lens moving frame is provided, and have a through hole passing through the fixed portion in a direction of the optical axis.

Abstract: An optical member driving apparatus includes an optical member holder holding an optical member, which is rectilinearly guided and has a rotating member supported rotatably about a rotation shaft extending perpendicularly to a movable direction in which the optical member holder is movable, a fixed member that extends in the movable direction, has two sliding surfaces facing each other with predetermined spacing therebetween, and is arranged in such a way that the rotating member is located between the two sliding surfaces, two movers each of which includes a base and a vibrator connected to the base, and a controller that controls driving of the two vibrators to move the optical member holder in the movable direction. The vibrators of the two movers are in pressure contact with one and the other of the two sliding surfaces respectively. The rotating member is rotatably held between the bases of the two movers.

Abstract: An optical member driving apparatus includes an optical member holder holding an optical member, which is rectilinearly guided and has a rotating member supported rotatably about a rotation shaft extending perpendicularly to a movable direction in which the optical member holder is movable, a fixed member that extends in the movable direction, has two sliding surfaces facing each other with predetermined spacing therebetween, and is arranged in such a way that the rotating member is located between the two sliding surfaces, two movers each of which includes a base and a vibrator connected to the base, and a controller that controls driving of the two vibrators to move the optical member holder in the movable direction. The vibrators of the two movers are in pressure contact with one and the other of the two sliding surfaces respectively. The rotating member is rotatably held between the bases of the two movers.