Abstract: A flat spring of a voice coil motor includes a fixing frame having a first connector, and an elastic arm. The elastic arm includes a main body, and a first curve portion. The first curve portion is arranged on one terminal end of the main body and connects with the first connector of the fixing frame, or is arranged on one terminal end of the main body, which extends to the fixing frame.

Abstract: An electrical aperture and shutter device having a transparence switching element includes an operating element, a transparence switching element, and a controller. The operating element is configured for producing a signal. The transparence switching element is configured for controlling a transparence and a light-passing time of the transparence switching element and thereby carrying out the functions of aperture and shutter. The controller is configured for controlling an operation of the transparence switching element by receiving the signal produced by the operating element. A camera incorporated an electrical aperture and shutter device having a transparence switching element therein, also is provided.

Abstract: A high stability planar spring utilized in a voice coil motor comprises a fixed portion, a deformation portion, a sustaining portion, a force-receiving portion and a stabilized portion. The force-driven portion is connected to the fixed portion by the deformation portion and the sustaining portion in order to maintain the same plane with the fixed portion. The stabilized portion extends from the sustaining portion to the gap between the fixed portion and the sustaining portion.

Abstract: A magnetic levitation actuating motor includes a hollow base externally wound with a coil, at least one magnetic element fixedly mounted to at least a free open end of the hollow base, and a magnetizable actuator axially movably disposed in the hollow base. When the coil is supplied with a current to produce a magnetic flux, the magnetizable actuator is temporarily magnetized to produce a magnetic intensity, so that the magnetizable actuator and the magnetic element mutually attract or repulse to displace the magnetizable actuator in the hollow base. When the current supplied to the coil is cut off, the magnetizable actuator can still maintain at a balance point position in the hollow base for a period of time. Therefore, by intermittently supplying current to the coil, the magnetizable actuator can stay at the balance point position over a prolonged time with reduced power consumption.

Abstract: A cylinder-like electromagnetic motor of the present invention includes a base having a closed-bottom central hole; a cover connected to the top of the base; a spring piece located between the cover and the top of the base; a holder movably received in the central hole of the base; a magnetic element fitted to a bottom of the central hole of the base to locate below the holder; and an electromagnetic element fitted below the magnetic element. When a current is supplied to the electromagnetic element to produce an electromagnetic field, the magnet element and the electromagnetic element mutually repulse or attract to produce a push force against the holder to move the holder forward. When the current is cut off, the electromagnetic field vanishes and the spring piece elastically pushes the holder backward to an initial position in the base.