Lenses for industrial laser cutting machines; Magnifying glasses; Micrometer gauges; Micrometers; Microscopes; Optical apparatus and instruments, namely, optical ports for underwater photography, dome ports for underwater photography, wet diopters, adapter lenses for underwater photography; Optical apparatus, namely, a non-lethal security device that uses a light source to detect, warn, repel, temporarily blind, disorient, nauseate, disable, confuse, debilitate, stun, subdue, stop, or incapacitate persons or animals; Optical lenses; Optical character recognition apparatus; Optical condensers; Optical fibres; Optical filters; Optical frames; Optical glasses; Optical inspection apparatus; Optical inspection apparatus for inspection of semiconductor materials, namely, semiconductor wafers, reticles, and photomasks; Optical inspection apparatus for industrial use; Optical lamps; Optical lens sights; Optical receivers; Optical semiconductor amplifiers; Optical sensors; Periscopes; Prisms for optics purposes; Spectroscopes; Telescopes; Measurement standard devices for nanometrology, namely, measuring tools having a pattern in the micrometer or nanometer ranges; Microscope condensers; Protective eye pieces; Scientific and technical apparatus, namely, optical mirrors