Changchun forerun optical thin film Co., Ltd. was located in the industry base of chinses photoelectron, changchun city. It is a manufacturer characterized by optical coating components. For many years, our engineers and experts are dedicated to design, manufacture, research and development of optical thin-film components. Our most experienced optical engineering team can offer you a comprehensive selection of optical components (coatings, gratings, lenses, mirrors, window & prisms, etc ) especially in optical coating components (substrate include all kinds of materials such as si, ge, znse, fused silica, bk7, caf2, etc). The coating range of the wavelength is from 0.2um to 20um. Coatings include anti-reflection (ar) coatings, partial reflection (pr) coatings, high reflection (hr) coatings, beam splitter, filters, infrared (IR) coatings, UV coatings and fiber coatings. Forerun always one step of its competitors on fabrication of coatings especially on laser system and infrared system.