optical enhancers, namely, optical lenses; optical finders, namely, range finders for cameras; optical lens sights; optical sensors; optical profilers; target seekers, namely, optical lasers and telescopic sights for identifying targets; target location apparatus, namely, infrared optics and telescopic sights for locating targets; target surveillance apparatus, namely, electronic video surveillance apparatus; target sights for guns and artillery; apparatus providing night vision, namely, nigh...