Optical system for improving the symmetry of the beam emitted fr
Optical system for improving the symmetry of the beam emitted fr
Optical system for improving the symmetry of the beam emitted fr
Optical system vibro-isolating apparatus
Optical viewing device
Optoelectronic computer graphics system and method
Outside mirror system
Parabolic solar collector body and method
Parallel digital processing system using optical interconnection
Parallel processing system with programmable optical interconnec
Penta prism mask
Phase-type diffusing plate
Phase-type focusing screen and process for manufacturing the sam
Photographing lens switchable between manual focus and auto focu
Plastic zoom lens
Polymer dispersed liquid crystal display device
Portable image display
Portable image display
Powered zoom device
Prism and manufacturing method thereof, optical beam shaping...