Protective eye pieces; microscope optics, namely, objectives lenses; microscopy diffraction apparatus, namely, lenses; optical lenses; optics, namely, magnifying glasses; instruments containing lens eyepieces, namely, microscopes ; Optical products, namely, magneto-optical fiber laser and solid state laser components for transmitting and blocking light for the purpose of protecting lasers or amplifiers from background light interference, namely, fiber to free-space optical isolators, fiber to...