Modern optics encompasses the areas of optical science and engineering that became popular in the 20th century with products such as:  Binoculars, Microscopes, Night Vision, Riflescopes,  Spottinscopes, Telescopes, Monoculars, Rangefinders,  Camera & Photo, These areas of optical science typically relate to the electromagnetic or quantum properties of light but do include other topicssuch as : Adaptive optics  , Circular dichroism , Crystal optics ,Diffractive optics , Fiber optics , Waveguide (optics) ,  Holography , Integrated optics ,
Jones calculus , Lasers , Lens flare , Microlens , Non-imaging optics , Nonlinear optics ,  Optical pattern recognition , Optical processors ,Optical vortex , Photometry ,  Photonics , Quantum optics , Radiometry , Statistical optics ,Thin-film optics ,  X-ray optics .

Audubon , Barska , Bower , Brunton  Bushnell , Camelion ,Canon , Carson Optical ,Celestron,Combat Optical ,  Cstar ,  Digital Innovations ,Fuji , Galileo , Galileo Visions, Inc, Leapers , Leica , Mead , Meade , Meade Instruments , Minox ,  NCSTAR ,NEIKO , Night Owl Optics , Nikon Sports And Recreational Optics,
Olympus , Orion ,Pentax , Periscope , Phoenix,  Prime Entertainment, Raynox,  Satechi ,  Simmons ,  Skyline , Steiner ,  Vanguard ,  Vivitar ,  Walkstool , Wild Planet ,  Yukon Optics , Zeiss ,  Zhumell, Inc. .