A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin.

A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin.

A holder is used while attached to a chassis of a vibration generator that moves a vibrator to generate a vibration. The holder includes a vibrator retention unit retaining the vibrator, a fixed unit fixed to the chassis, and an arm. The arm connects the fixed unit and the vibrator retention unit, and the arm supports the vibrator retention unit while the vibrator retention unit can be displaced with respect to the fixed unit. The fixed unit, the arm, and the vibrator retention unit are integrally formed using resin.

A chip-scale vibrational energy harvester circuit may include magnets and coils with magnetic cores provided in proximity thereto. Either the magnets or the coils may be mounted on a micro-electromechanical spring system (MEMS) that is coupled to a stationary frame. The counterpart component may be mounted on the stationary frame. When the stationary frame experiences vibrational activity, the magnets and the coils may move with respect to each other, causing variations in the flux passing through the coils. The variations in the flux may induce voltages across the coils. The induced voltages may be rectified and stored as energy for later use.

A chip-scale vibrational energy harvester circuit may include magnets and coils with magnetic cores provided in proximity thereto. Either the magnets or the coils may be mounted on a micro-electromechanical spring system (MEMS) that is coupled to a stationary frame. The counterpart component may be mounted on the stationary frame. When the stationary frame experiences vibrational activity, the magnets and the coils may move with respect to each other, causing variations in the flux passing through the coils. The variations in the flux may induce voltages across the coils. The induced voltages may be rectified and stored as energy for later use.

A rotary power generating apparatus has the first, second piston magnet members, the crankshaft, the first, second guide members and the first, second fixed magnet members and the first, second demagnetizing belts. The first, second piston magnet members and the first, second fixed magnet members are arranged so that the top pole surfaces and fixed pole surfaces having equal polarity, oppose each other. The first, second demagnetizing belts have demagnetizing magnet parts, having magnetic forces weaker than that of the magnetic poles of the top pole surfaces and different from the polarity of the top pole surfaces, and non-magnetic force parts.

A rotary power generating apparatus has the first, second piston magnet members, the crankshaft, the first, second guide members and the first, second fixed magnet members and the first, second demagnetizing belts. The first, second piston magnet members and the first, second fixed magnet members are arranged so that the top pole surfaces and fixed pole surfaces having equal polarity, oppose each other. The first, second demagnetizing belts have demagnetizing magnet parts, having magnetic forces weaker than that of the magnetic poles of the top pole surfaces and different from the polarity of the top pole surfaces, and non-magnetic force parts.

A lens moving apparatus including a bobbin, a first coil mounted at an outer circumference of the bobbin, a first magnet moving the bobbin in a first direction parallel to an optical axis by interaction with the first coil, a housing supporting the first magnet, an upper elastic member disposed at a top surface of the bobbin and at a top surface of the housing, a lower elastic member disposed at a bottom surface of bobbin and at a bottom surface of the housing, and first and second winding protrusions disposed with being opposite to each other, the first coil being wound on the first and second winding protrusions.

A lens moving apparatus including a bobbin, a first coil mounted at an outer circumference of the bobbin, a first magnet moving the bobbin in a first direction parallel to an optical axis by interaction with the first coil, a housing supporting the first magnet, an upper elastic member disposed at a top surface of the bobbin and at a top surface of the housing, a lower elastic member disposed at a bottom surface of bobbin and at a bottom surface of the housing, and first and second winding protrusions disposed with being opposite to each other, the first coil being wound on the first and second winding protrusions.

In a magnetic drive linear actuator, a load attachment portion is fixed to the lower side portion of the rectangular tubular coil frame of a mover, and a light-emitting portion of a position detection portion for detecting the movement position of the mover is fixed to the upper side portion of the coil frame. The load attachment portion and the upper side portion of the coil frame are mutually coupled through beam portions bridged there between. This makes it possible to prevent or suppress the behaviors of the load attachment portion and light-emitting portion from being shifted to each other during high-acceleration driving of the mover, thereby improving the responsiveness and positioning accuracy of the linear actuator.