Optical lenses; optical lens blanks; lens arrays; optical filters; optical mirrors; prisms for optical purposes; optical diffusers; optical diffusion devices; optical machines and apparatus and their optical components; optical communication machines and apparatus and their optical components; photographic machines and apparatus and their optical components; optical collimators; collimators; optical sensors and their optical components; TOF (Time of Flight) sensors and their optical components; laser measuring systems and their optical components; measuring or testing machines and instruments, and their parts; telecommunication machines and apparatus, and their parts; laboratory apparatus and instruments, and their parts; power distribution or control machines and apparatus, and their parts; diffractive optical elements; optical waveguides; optical components for laser diodes; optical components for light-emitting diodes; optical components for photodiodes; optical components for personal and biometric authentication devices; electronic machines, apparatus and their parts, namely, optical mouse, diodes, laser diodes, light-emitting diodes (LED), photodiodes, organic light-emitting diodes (OLED), quantum dot light-emitting diodes (QLED); optical components for smartphones; optical components for personal digital assistants; optical components for lasers, not for medical purposes; optical components for projectors; optical glass; processed glasses, not for building; beam shapers; META lens; optical components for laser televisions; optical components for displays; optical components having a microstructure or a moth-eye (moth-eye) structure on their surfaces.