Corrective glasses; Lenses for astrophotography; Magnifying glasses; Multimedia projectors; Optical condensers; Optical glasses; Optical inspection apparatus; Optical lamps; Optical lenses; Optical lens blanks made of glass, plastic and polycarbonate; Photographic projectors; Projection screens; Projectors particularly projectors for the entertainment industry; Protective films adapted for computer screens; Slide or photograph projection apparatus; Spectacle lenses; Stereoscopes; Battery char...