Abstract: Provided is a lens assembly driving module including a photographing lens assembly, a first driving mechanism and a second driving mechanism. The photographing lens assembly includes N lens elements and has an optical axis passing through the N lens elements. The first driving mechanism drives at least N/2 said lens elements to move along the optical axis of the photographing lens assembly. The second driving mechanism enables a relative distance along the optical axis of two adjacent ones of the N lens elements to vary. Therefore, any specific one of the lens elements is capable of being driven to optimize optical imaging resolution of various fields of view independently within a real shot at different object distances.

Abstract: An imaging lens module includes a casing, an imaging lens disposed to the casing, a lens carrier supporting the image lens, an elastic element connected to the lens carrier to provide the lens carrier with a translational degree of freedom along an optical axis, a frame connected to the elastic element such that the lens carrier is movable along the optical axis with respect to the frame, a variable through hole module coupled to the imaging lens and having a light passable hole with a variable aperture size, and a wiring assembly including a fixed wiring part at least partially located closer to the opening than the elastic element and a movable wiring part electrically connected to the fixed wiring part and the variable through hole module. The optical axis passes through lens elements of the imaging lens and the center of the variable through hole module.

Abstract: A switching circuit includes a direct current supplying circuit, an alternating current supplying circuit, a magnetic element and a load. The direct current supplying circuit provides a direct current power. The alternating current supplying circuit is electrically connected to the direct current supplying circuit and provides an alternating current power. The magnetic element is electrically connected to the direct current supplying circuit and the alternating current supplying circuit. The magnetic element is conducted or closed in accordance with the on or off state of the direct current power and the alternating current power. The load is electrically connected to the direct current supplying circuit, the alternating current supplying circuit and the magnetic element.