REO, a manufacturer of precision optical solutions, has launched a new website providing technical reference and educational information on optics and thin film coatings. Specifically, the new site contains a tutorial on thin film coating technology, and also provides links to background articles that explore key aspects of optical fabrication and coating. It also furnishes comprehensive descriptions and specifications for REO's products, including optics, coatings, optomechanical assemblies and HeNe lasers.