A light activated optical switch includes at least one conductive layer located adjacent to a piezoelectric element to enhance the electrical field that is applied to the piezoelectric element in response to an activation light. The joint is coupled to the connection groove. The microscope can include a small and lightweight bellows that provides zoom capability. Then, users may further use such online marketplace portal to propose and consummate content licensing arrangements with other users. The self-tensioning membrane allows sound to travel out of the protective enclosure while also preventing liquid or particulate intrusion. The symbol boundary module couples to the converter to evaluate a phasor angle characteristic of selected tones from each windowed portion converted by the converter and to convert the phasor angle characteristic of the selected tones from a selected one of the windowed portions to the alignment signal to align the window synchronizer with the symbol boundaries in the received datastream.