Optical communications 62 Lantern slides 51 Motion pictures 41 Motion picture industry 40 Lantern projection 39 Lasers 28 Fiber optics 27 Description and travel 26 Cinematography 23 Motion picture actors and actresses 20 Optics 20 Equipment and supplies 17 History 17 Optoelectronic devices 17 Technique 17 Wireless communication systems 16 Photonics 15 Shadow shows 14 Computer networks 13 Optical materials 13 Optical pattern recognition 13 Panoramas 13 Photography 13 Shadow-pictures 13 Stills (Motion pictures) 13 Design and construction 12 Optoelectronics 12 Social life and customs 11 Technological innovations 11 Amusements 10