Abstract: An electromagnetic driving mechanism is provided for driving two different optical lenses, including a base, a first holder, a frame, a resilient element, a first electromagnetic driving assembly, a second holder, and a second electromagnetic driving assembly. The first and second holders are provided for holding the optical lenses. The frame is affixed to the base, has magnetically permeable material, and surrounds the first holder. The resilient element connects the first holder with the frame. The first electromagnetic driving assembly is disposed between the first holder and the frame to drive the first holder moving relative to the base. The second electromagnetic driving assembly is disposed on an outer side of the second holder to drive the second holder moving relative to the base.

Abstract: A lens driving module is provided which includes a movable portion, a base, a housing, a plastic substrate, and a 3D circuit. The base is adjacent to the movable portion, and the housing is connected to the base and surrounds the movable portion. The plastic substrate is disposed between the housing and the movable portion. At least a portion of the 3D circuit is disposed on the plastic substrate and is configured to transmit the signals or power for the operation of the lens driving module. The 3D circuit has an inner connecting portion and an outer connecting portion positioned on different planes and arranged to be parallel to each other.

Abstract: The invention provides a monitor circuit, which is used for a fan and receives a driving current and a driving voltage of the fan. The monitor circuit includes sensing circuits and a microcontroller. The sensing circuits respectively sense statuses of the fan and output sensing values. The microcontroller is used for monitoring whether the sensing values exceed preset value ranges respectively to obtain comparison results. The microcontroller outputs warning signals according to the comparison results. Each of the warning signals has a specific frequency.

Abstract: The disclosure discloses an electromagnetic driving module which includes a base, two magnetic elements, a wiring assembly, a reference element, and a sensor element. The two magnetic elements are arranged along a reference line and positioned at two sides of the base. The wiring assembly is connected to the base and arranged adjacent to the two magnetic elements. The reference element is positioned on the base. The sensor element is adjacent to the reference elements and configured to detect the movement of the reference element to position the base. A lens device using the electromagnetic driving module is also disclosed.

Abstract: An optical system includes a base, a first lens driving module, and a second lens driving module. The first lens driving module includes a first lens holder, a first magnet, and a first coil. The first lens holder is configured to hold a first optical element. The first coil corresponding to the first magnet is configured to drive the first lens holder to move relative to the base. The second lens driving module includes a second lens holder, a second magnet, and a second coil. The second lens holder is configured to hold a second optical element. The second coil corresponding to the second magnet is configured to drive the second lens holder to move relative to the base. The first magnet is disposed between the first and second lens holders, and no other magnet is disposed between the first and second lens holders except the first magnet.

Abstract: A multiple lenses driving mechanism is provided, including a frame, a first lens holder, a second lens holder, a first lens driving assembly, a second lens driving assembly and a stopper. The first and second lens holders are disposed in the frame, arranged along a longitudinal axis for respectively holding a first lens and a second lens. The first lens and the second lens define a first optical axis and a second optical axis, respectively. The first and second lens driving assemblies are disposed in the frame to drive the first lens holder and the second lens holder, respectively. The stopper is disposed between the first and second lens holders and has a first restricting surface and a second restricting surface, facing the first and second lens holders, so as to restrict the first and second lens holders in a first restricted position and a second restricted position.

Abstract: The disclosure provides an optical driving mechanism, including a frame body, a holding member, a plate coil and a magnet. The holding member is movably disposed in the frame body and configured to hold an optical element. The plate coil is disposed on the holding member. The magnet is disposed on the frame body and corresponds to the plate coil. The plate coil acts with the magnet to generate an electromagnetic force to drive the holding member and the optical element to move along an optical axis of the optical element relative to the frame body.

Abstract: A moving mechanism for holding a lens is provided, including a carrier having an accommodating space, a coil, a sensing object, a base, at least one magnetic member, and a position detector, wherein the lens is disposed in the accommodating space. The coil and the sensing object are disposed on the carrier, and the coil surrounds the accommodating space. At least a portion of the coil is disposed between the sensing object and the accommodating space. The magnetic member and the position detector are disposed on the base, and the position detector is adjacent to the sensing object. When a current flows through the coil, the carrier moves relative to the base.

Abstract: The invention provides a monitor circuit, which is used for a fan and receives a driving current and a driving voltage of the fan. The monitor circuit includes sensing circuits and a microcontroller. The sensing circuits respectively sense statuses of the fan and output sensing values. The microcontroller is used for monitoring whether the sensing values exceed preset value ranges respectively to obtain comparison results. The microcontroller outputs warning signals according to the comparison results. Each of the warning signals has a specific frequency.

Abstract: The disclosure discloses an electromagnetic driving module which includes a base, two magnetic elements, a wiring assembly, a reference element, and a sensor element. The two magnetic elements are arranged along a reference line and positioned at two sides of the base. The wiring assembly is connected to the base and arranged adjacent to the two magnetic elements. The reference element is positioned on the base. The sensor element is adjacent to the reference elements and configured to detect the movement of the reference element to position the base. A lens device using the electromagnetic driving module is also disclosed.