The vibration-type-motor driving apparatus includes a vibration-type motor including a vibrator on which vibration is excited by an electro-mechanical energy conversion element, a shaft that supports the vibrator, and a rotor that contacts the vibrator to be rotated thereby. A first end portion of the shaft is moved with the vibration of the vibrator. The apparatus further includes a housing that houses therein the motor, and a first elastic member that contacts the first end portion of the shaft and is deformable in a direction in which the first end portion vibrates. The first elastic member transfers heat of the shaft to the housing or another member provided inside the housing.

The invention relates to a piezoelectric motor with bending travelling wave, comprising a rotary shaft (4) connected to a rotor (3), a piezoelectric element (2) attached to a vibrating stator (1), and a decoupling web (5) for attaching the vibrating stator to a mounting (7). The mounting (7) is mechanically connected to a base (9) by means of at least one deformable element (10) and at least one piezoelectric actuator (11), so that the support can be deformed angularly relative to the base in order to rotate the shaft when the vibrating stator is no longer electrically powered. The motor is particularly suitable for applications that require micrometre or nanometre accuracies, for example in positioning tools in industrial processes, precise medical robotics or optical applications.

An optical element driving mechanism is provided. The optical element driving mechanism includes a movable portion, a fixed portion, a driving assembly, and a support element. The movable portion is used for connecting to an optical element having a main axis. The movable portion is movable relative to the fixed portion. The driving assembly is disposed on the fixed portion or the movable portion. The driving assembly is used to drive the movable portion to move relative to the fixed portion. The movable portion is connected to the fixed portion through the support element.

A vibration type actuator capable of reducing a change in force generated between a contact body and a vibrating body. The vibration type actuator comprising a vibrating body unit including a vibrating body and a holding portion that holds the vibrating body, a pressurizing unit, a contact body that contacts with the vibrating body by a pressurizing force by the pressurizing unit, and a connecting portion, wherein when predetermined vibration is excited in the vibrating body, the contact body and the vibrating body unit move relative to each other in a first direction, and wherein the connecting portion connects the holding portion to a connection object in the first direction, such that the vibrating body unit is displaced at least in a pressurizing direction by the pressurizing unit when the contact body and the vibrating body unit move relative to each other in the first direction.

A vibration actuator that is capable of reducing difference of vibration velocities when a contact member is driven using a plurality of vibrators includes a vibrator device and the contact member, which moves relative to the vibrator device. The vibrator device includes the plurality of vibrators, which are connected in series, and a plurality of inductors, which are connected in parallel to the respective vibrators.

A power generation device includes a rotatable member arranged to rotate about a rotating axis in response to an application of force; and at least one power generation unit including at least one deformable member, the deformable member arranged to deform for generating electrical energy in response to the rotation of the rotatable member. The present invention also discloses a power generation device having an oscillatable member and an electric device incorporating the power generation device.

This application discloses a camera module including a bracket, where the bracket is provided with a groove; a drive member, where the drive member is disposed on a first side of the bracket; a transmission member, where the transmission member is disposed on an inner wall of the groove, and the transmission member is electrically connected to the drive member; and a lens module, where at least part of the lens module is disposed in the groove, the lens module is movably connected to the transmission member, and the transmission member is configured to drive the lens module to move.

An optical element driving mechanism is provided, including a movable portion, a fixed portion, a driving assembly, and a support element. The movable portion is used for connecting to an optical element having a main axis. The movable portion is movable relative to the fixed portion. The driving assembly is used for driving the movable portion to move relative to the fixed portion. The movable portion moves relative to the fixed portion through the support element.

The apparatus consists of a highly conductive contact disc member preferably an annular circular disc that is attached rigidly to a shaft member with a shaft member collar to rotates freely with the shaft member on a pair of bearings (or bushes), in a pair of housing members. The contact disc member has an even number of piezoelectric crystals attached radially to the circumferential contact disc member electrical contacts to form a symmetric array. An equal number of equal massive members are attached to the other ends of the piezoelectric crystals, again to form, a symmetric array about the rotation axis of the shaft member. Each of the massive members has the same weight for balance. Thus, each massive member is held unto the contact disc member's circumference by a piezoelectric crystal. Each massive member has a diametrically opposite massive member that can balance its weight.

An optical element driving mechanism is provided. The optical element driving mechanism includes a fixed portion, a movable portion, and a driving assembly. The fixed portion includes a limiting portion. The movable portion is movably disposed on the fixed portion and includes an optical element and a connecting assembly. The optical element has a main axis. The connecting assembly is connected to the optical element. The driving assembly is at least partially disposed on the fixed portion, wherein the limiting portion is used for limiting the range of motion of the movable portion relative to the fixed portion.