Circuitry and methods are provided. A cumulative time calculating circuit for calculating cumulative current-carrying time of the panel and a driving circuit for driving the panel. The method includes receiving one or more services having associated delivery requirements, determining that network bandwidth is available to meet the delivery requirements, and allocating the network bandwidth to the one or more services based on the delivery requirements to produce network bandwidth allocations. The plurality of zoom optical systems are arranged in such a way as to form images of an object respectively in different regions on the image pickup surface of the same image pickup element. An elastic material may be between the tapered surface and the wear plate.