A capacitor element includes a pair of conductive layer, a plurality of first electrodes and second electrodes, and insulation caps for insulating these electrodes from the conductive layers. The disclosed technology provides instant plug-and-play service, decouples access and service networks and provides seamless access enabling customers to maintain a service account regardless of location. The method includes the steps of providing a pump for producting energy and optically coupling the pump with the cladding element, such that the energy is absorbed and stored in the cladding element by its energy migration component. The elastic body includes two side sealing lips, arranged radially of the core metal and having their tips held in contact with the radial upright wall. The estimated motion may be a basis for blur estimation and blur removal from the flutter shutter image.