3D spectacles; Bathroom scales; Binoculars; Cover glass for microscope slides; Distance measuring apparatus; Microscopes; Photographic cameras; Sighting telescopes for firearms; Smart watches; Smartglasses; Sunglasses; Telemeters; Telescopes; Telescopic sights for artillery; Tripods; Astronomical spectrographs; Electric navigational instruments; Microscopes and their parts; Optical character recognition apparatus; Optical inspection apparatus