A ceiling mounted lift for a multimedia projector that can be installed into a hollow ceiling. The mechanism comprises a housing that supports two hinge plates for loose pivoting motion, moving the ring members between an open position and a closed position. The backlight may include an optical sheet provided adjacent the display panel, a reflector provided a prescribed distance from the optical sheet, at least one light emitting device provided adjacent the reflector, and a lens provided over a corresponding the light emitting device. And an implant processor also is implantable under the skin and in communication with the internal movement sensor and the external transmitter for generating an implant stimulation signal based on one of the movement signals andor the relative motion signal to electrically stimulate target neural tissue for vestibular sensation by the patient.