Telescopes, binoculars, telescopic spectacles, binoculars for hunting purposes, telescopic sights for hunting purposes, opera-glasses, and telescopic glasses; spectacle frames, spectacle glasses, polarized spectacles, contact lenses, magnifying glasses, magnifying spectacles, and protective spectacles, including spectacles for protection against laser beams; aspheric and astronomical lenses; astrographs; astrographic lenses, photographic lenses, semi-conductor lenses, and microscope lenses; carriers and caps for optical lenses; prisms for lithography machines; crystal components and synthetic crystals for optical purposes, namely, crystal for use in lithographic machines; eyepieces; optical mirrors; surface roughness testing machines and instruments; optical reflectors; optical frequency metrology devices; and software for use in the field of metrology, namely, software for controlling lithographic machines and lithographic exposures and for measuring the surface of silicon wafers

Grinding, cutting, polishing and coating of glass and other optical surfaces