Image intensified night vision equipment, thermal imaging night vision equipment, optical modules and components, optical modules for head-up, head level, head down displays, helmet mounted displays, scopes, binoculars, sighting telescopes, collimators, electro optical measuring equipment, anti-glare visors; bar code scanners, video projectors and video cameras; optical instruments; microscopes, stereoscopes, and telescopes; zoom lenses and other lenses for optical instruments; microscope accessories; video couplers, TV camera lenses, plastic optics; endoscope optics, telecentric lenses, zoom lenses, objectives, eyepieces, catadioptric objectives; visible, infra-red and ultra violet optical components: spherical lenses, aspherical lenses, flat lenses, prisms, optical protective domes, cylindrical lenses and optical mirrors, diffractive lenses, optical beam splitters; front surface mirrors, hot mirrors, cold mirrors, dielectric mirrors, transparent mirrors; anti-glare panels for visual displays; visible light, infra-red and ultra violet filters of following types: long and shortwave pass filters, narrow band pass filters, wide band pass filters, square band filters, dual band filters, colour separation filters, heat/light separation filters, dichroic filters, trichoic filters, neutral density filters, attenuation filters, edge filters, laser blocking filters

Maintenance and repair of night vision equipment and optical equipment and apparatus