An example downhole tool incorporating aspects of the present disclosure may include a tool body and a first flexible material coupled to the tool body. The fishing lure system consists of a spoon shaped lure body having a convex inner surface on which is attached a hook. Other improvements and extensions are also claimed. Further opening of the switch transistor in the high-low transition is taken care of by a relatively constant current source. The method includes displaying at least one message object and associating the at least one message object with a signal object. A microlithography projection exposure apparatus comprises a projection objective with at least one optical element which is, in particular, operated in transmission and consists of an optical composite material of this type.