This optical element driving device is provided with: a movable part capable of holding an optical element; a driving part that includes an ultrasonic motor and drives the movable part; a voltage boosting part having an inductor that boosts input voltage inputted to the driving part and supplies the boosted input voltage to the ultrasonic motor; a position detection part that detects the position of the movable part; and a substrate part on which the position detection part and the voltage boosting part are disposed.

A driving apparatus which is capable of smoothly moving a follower by a cam portion, and realizes the stopper structure of the follower by a small number of components without the size increased. The driving apparatus comprises an up cam gear having an up radial cam and an up thrust cam, and a down cam gear unit having a down radial cam and a down thrust cam. The up cam gear and the down cam gear unit mesh with each other in a vicinity of a region in which a lift amount of the up radial cam with respect to the follower increases. In a vicinity of a position at which the up cam gear and the down cam gear unit mesh with each other, a lift amount of the up thrust cam is larger than a lift amount of the down thrust cam in the thrust direction.

A method for film production includes the steps of obtaining information on the position of a defect (D) in a separator (12a) and providing marks (LA, LB) at the respective positions in the vicinity of the defect (D), the marks indicating the position of the defect.

The present invention provides a board mountable system for filming underwater video. The inventive board mountable system can be mounted to the underside of water vehicles for incorporating a camera for filming from an underwater perspective. The inventive board mountable system is shaped to minimize drag as a result of the mounted camera or camera system. Embodiments of the inventive system includes a fin shaped housing for holding a camera or camera system. In certain embodiments, the fin is removably attached to the water vehicle, such as a surf board, where the fin housing can be swapped with other fins being used with the water vehicle for controlling the direction of a watersports board in motion. These embodiments of the inventive system further include a connection means for connecting the fin to the underside of a water vessel.

Provided is a vibration wave motor including: a vibrator; a friction member; a pressurizing mechanism; a first holding mechanism; and a second holding mechanism, wherein the vibrator and the friction member are configured to perform relative movement with respect to each other, wherein the first holding mechanism includes a first holding portion and a second holding portion which is longer than the first holding portion in a direction of the relative movement, wherein the friction member is arranged between the first holding portion and the second holding portion, wherein the first holding portion includes a first restriction portion, wherein the second holding portion includes a second restriction portion, and wherein the first restriction portion and the second restriction portion are brought into abutment against the second holding mechanism to restrict movement in directions other than the direction of the relative movement of the vibrator and the first holding mechanism.

A lens driving device is describes that includes a stator and a mover, with a lens support for supporting the lens and for moving in an optical axis direction of the lens with respect to the stator. Any one of the stator and the mover has protruding portions and any other one of the stator and the mover has recessed portions into which the protruding portions are inserted. The protruding portions and the recessed portions each have opposing surfaces where the protruding portions and the recessed portions are opposed to each other, and a resin with viscoelasticity is provided to contact the opposing surfaces of the protruding portions and the opposing surfaces of the recessed portions.

The present invention provides a board mountable system for filming underwater video. The inventive board mountable system can be mounted to the underside of water vehicles for incorporating a camera for filming from an underwater perspective. The inventive board mountable system is shaped to minimize drag as a result of the mounted camera or camera system. Embodiments of the inventive system includes a fin shaped housing for holding a camera or camera system. In certain embodiments, the fin is removably attached to the water vehicle, such as a surf board, where the fin housing can be swapped with other fins being used with the water vehicle for controlling the direction of a watersports board in motion. These embodiments of the inventive system further include a connection means for connecting the fin to the underside of a water vessel.

A driving apparatus includes a driving source supplied with a power and configured to generate a driving force, a first cam member configured to rotate in a first rotational direction in accordance with the driving force from the driving source, a driving member configured to drive a driven member as the first cam member rotates, and a second cam member configured to contact the driving member after an electrification to the driving source is stopped so as to rotate the first cam member in a second rotational direction opposite to the first rotational direction.

An image photographing system for viewing 3D images with naked eyes and using method thereof, including an L-shaped frame (1), wherein, a top end of a vertical portion of the L-shaped frame successively at equal intervals providing with: an intermediate photographing mechanism, a left photographing mechanism and a right photographing mechanism, a left driving mechanism and a right driving mechanism, a guide post, a vertical driving servo motor, a driving lead screw; a support plate drives the left driving mechanism and the right driving mechanism to move up and down by moving up and down along the guide post under the drive of the driving lead screw, so as to drive the left photographing mechanism or the right photographing mechanism to swing up and down. The present invention can see the realistic and natural 3D images with naked eyes.

A holographic photographing system, a holographic display system, a stereoscopic photographing system and a display method are provided. M photographing devices are distributed on a same circumference at equal intervals, and an included angle between two adjacent photographing devices to a center of circle is 360/m. At a top end of a vertical portion of an L-shaped frame, each of the photographing devices is at equal intervals provided with: an intermediate photographing mechanism, a left photographing mechanism and a right photographing mechanism, a left driving servo motor and a right driving servo motor, a guide post and a vertical driving servo motor, and a driving lead screw connected to a driving shaft. The support plate moves up and down along the guide post to drive the left driving mechanism and the right driving mechanism to move up and down.