U.S. Patent Classification Definitions: Class 359, Optics: Systems (IncludingCommunication) and Elements

摘要

General statement of the Class Subject Matter; This is the generic class foroptical elements and optical systems not elsewhere classified. Among the optical elements included in this class are: Lenses, Polarizers, Diffraction gratings, Prisms, Reflectors, Filters, Projection screens, Optical Modulators, Optical Demodulators, Optical Transmitters, Optical Receivers. Among the optical systems included in this class are: Optical Communication Compound lens systems, Light reflecting signalling systems (e.g., retroreflectors), Stereoscopic systems, Binocular devices, Systems of lenticular elements, Systems involving light interference, Glare reducing systems, Light dividing and combining system, Light control systems (e.g., light valves), Building illuminations with natural light, Systems for protecting or shielding element's, Optical system whose operation depends upon polarizing, diffracting, dispersing, reflecting, or refracting light, Kaleidoscopes. Further included are certain apertures, closures, and viewing devices of a specialized nature which involve non intentional reflection, refraction, or filtering of light rays.