Loudspeakers; Multimedia projectors; Photography projectors; Digital projectors; Self-acting focussing projectors; Profile projectors; 3D spectacles; Projection screens; Video projectors; Liquid crystal display (LCD) projectors; Holographic projection apparatus; Mini beam projectors; Remote controls for projectors; Photographic cameras; Television apparatus for projection purposes; Humanoid robots having communication and learning functions for assisting and entertaining people; LCD projectors