Optics (from ??????, appearance or look in Ancient Greek) is the science that describes the behavior and properties of light and the interaction of light with matter.
http://en.wikipedia.org/wiki/Optics

Optics, laser, fiber and photonics technical directory. R&D, employment and business forum. ... Optics What is Optics? It's the field of Science and Physics related to light ...
http://www.optics.net/

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http://dictionary.reference.com/search?q=optics

Search across all available journals and conference papers published by OSA. If you need help, read our search tips, or browse by topic.
http://www.opticsinfobase.org/

Eagle Optics is America's largest independent supplier of Binoculars, Spotting Scopes, Tripods, and accessories for Birding, Hunting, Nature, Sports, and Astronomy - since 1986.
http://www.eagleoptics.com/