To provide a circuit board in which a curvature of a display surface can be controlled, or to provide a highly portable circuit board. A circuit board includes a substrate with flexibility and a curvature control mechanism. The curvature control mechanism includes a first electromagnet and a second electromagnet provided over a first surface of the substrate, an insulating film provided over the first and second electromagnets, and wirings electrically connected to the first and second electromagnets.

Various embodiments of electric lighting devices, and in particular, electric candles are described. The devices can include a flame element onto which light can be projected from a light source. Preferably, the light is projected within a focal area on the flame element. The housing of the devices can include projections that help maintain a vertical position of a circuit board within the housing.

A capacitance module may include at least one touch electrode on a first surface of the capacitance module; a first portion of an inductance coil deposited on a second surface of the capacitance module; a second portion of the inductance coil deposited on a third surface of the capacitance module; a first coil shield deposited on the second surface of the capacitance module; and a second coil shield deposited on the third surface of the capacitance module; where the first portion of the inductance coil and the second portion of the inductance coil are electrically connected; where the inductance coil is positioned to interact with a magnet adjacent to the inductance coil; and where the first coil shield and the second coil shield are positioned to reduce electromagnetic interference between the inductance coil and other electronic components of the capacitance module.

A lens driving device related to the field of driving devices and includes a lens assembly and a driving module for driving the lens assembly to move. The driving module includes a first driving module and a second driving module. The lens assembly is accommodated in the first driving module. The second driving module is sleeved on one side of the first driving module away from the lens assembly. The lens assembly is driven by the first driving module and the second driving module that realize movement in multiple different directions, so the lens assembly accommodated in the first driving module realizes movement in multiple directions, thereby achieving good image stabilization effect.

A system provides a work surface, a configuration space unit, and a magnetic movement system. The work surface has a configuration space associated therewith. In this regard, the configuration space unit is positionable within the associated configuration space of the work surface. The magnetic movement system has unit cells arranged in cooperation with the work surface, where each unit cell comprises an actuator, a magnet coupled to the actuator such that the actuator causes movement of the magnet defining an actuated magnet, and an electromagnetic coil. Moreover, the magnetic movement system is configured such that a magnetic field produced by at least one unit cell performs at least one operation that affects a position of the configuration space unit within the configuration space of the work surface.