Spyglasses; Mounting devices for photographic equipment; Camcorders; Optical sensors; Electronic detectors for observing and measuring the infrared spectrum, namely, infrared detectors; Motion-activated cameras; Telescopic gun sights; Vidicons; Night vision goggles; Surveying machines and instruments; Infrared detectors; Thermal imaging cameras; Crossbow scopes; Field-glasses; Rifle scopes; Hunting binoculars; Measuring apparatus, namely, laser distance meters; Optical lens sights; Infrared s...