Abstract: In accordance with an embodiment, a drive motor includes a carrier comprising a lens installation hole configured to have an optical lens installed therein; a coil located on an outer side of the carrier; and a coil heat dissipation structure located between the carrier and the coil, wherein the coil heat dissipation structure is fastened to the carrier, and the coil is fastened to and is in thermal conduction with the coil heat dissipation structure.

Abstract: The present invention provides methods and compositions for the production of high titer, wild-type-free recombinant AAV (“rAAV”) virions. The compositions of the present invention include novel nucleic acids encoding replication competent but packaging defective AAV helper functions and AAV helper function vectors. The present invention also includes host cells transfected by the claimed nucleic acids, methods of using the claimed vectors, and rAAV virions produced by such methods. The similar strategy can also be used for autonomous parvovirus virion production.