Binoculars; Cameras; Microscopes; Monoculars; Periscopes; Stereoscopes; Telescopes; Body-tubes for telescopes; Filters for optical devices; Inspection mirrors; Laboratory equipment, namely, spectroscopes; Lenses for astrophotography; Lenses for telescopes; Magnifying glasses; Optical glasses; Optical lenses; Power adapters; Power supply connectors and adaptors for use with portable electronic devices; Stands adapted for mobile phones; Tripods