A combined native microprocessor and stack machine are constructed so that Java\u2122 VM instructions can be executed in hardware. Methods for applying a doped conducting polymer buffer layer to an electrode-coated large area substrate are described. The lens element includes a lens positioned perpendicular to the cylindrical lens-element axis, an adjustment engagement that is externally accessible through the access window of the housing, and an exterior helical recess in the external cylindrical lens element surface. Initiation of rotation and returning of the seat or seats to their original orientation is accomplished by a timer, a sensor detecting targets, or the measurement of some physical criterion associated with movement of the carrier.