Patent ID: 7724495

Claim:
A rolled film capacitor comprising: a first dielectric film and a second dielectric film, which are each wound along their length dimension to form alternating turns of the winding; a plurality of first conductive segments, which are arranged on a first surface of the first dielectric film along the length dimension of the first dielectric film; and a plurality of second conductive segments, which are arranged on a surface of the second dielectric film along the length dimension of the second dielectric film, or which are arranged on a second surface of the first dielectric film along the length dimension of the first dielectric film, the second surface being opposite to the first surface of the first dielectric film; wherein the first conductive segments have a progressively increasing length along the length dimension of the first dielectric film, and the second conductive segments have a progressively increasing length along the length dimension of the first or second dielectric film, wherein a number of the first and/or second conductive segments per turn of the winding is equal to or more than one, and wherein an end of a first conductive segment and/or a second conductive segment is arranged periodically in terms of a winding angle.