74123610
Dec 13, 1990
Optical lenses for use in optically coupling optical fiber, Optical lenses for photodetector, Optical lenses for fiberscopes, Optical lenses for use in lighting a limited area, Lens elements for lens arrays, Optical lenses for bar-code readers, Optical lenses for LDs or LEDs, and Optical lenses for floodlights
Electrical and Scientific Apparatus