can change the direction of light propagation, and can change the relative spectral distribution of the ultraviolet, visible or infrared glass. The narrow optical glass is a colorless optical glass; the generalized optical glass is also included in the optical glass, glass, glass, quartz optical glass, anti radiation glass, ultraviolet infrared optical glass, fiber optic glass, optical glass, optical glass, optical glass and optical glass. Optical glass can be used in the manufacture of optical instruments in the lens, prism, mirror and window, etc.. Components made of optical glass are key elements in optical instruments.

optical glass is the basis and important part of the photoelectric technology industry. Especially in 1990s, with the continuous integration of optical and electronic information science, new materials science, as the basic material of the optoelectronic optical glass in the optical transmission, optical storage and optical display three major areas of application is by leaps and bounds, become the social information technology, especially the development of optoelectronic information technology is one of the basic conditions.

with the sustained and stable development of the domestic economy, the rapid development of optical glass manufacturing industry in china. According to the National Bureau of statistics data show that in 2010, the size of optical glass manufacturing industry, the number of enterprises reached 246, the industry achieved sales revenue of 23405000000 yuan, an increase of 1537000000; realize profit 53.70% yuan, an increase of 87.10%; asset size reached 26450000000 yuan, an increase of 77.49%. Due to the optical glass manufacturing industry to domestic sales, the impact of the financial crisis is relatively small, the industry is still showing a good growth momentum.

lens, prism, mirror, window, etc., for the manufacture of optical instruments or mechanical systems. Including colorless optical glass (usually referred to as optical glass), colored optical glass, radiation resistant optical glass, radiation proof glass and optical quartz glass, etc.. Optical glass has a high degree of transparency, chemistry and Physics (structure and performance) on a high degree of uniformity, with a specific and accurate optical constants. It can be divided into silicate, borate, phosphate, fluoride and sulfur compounds. According to variety, mainly in their refractive index (nD) - Abbe value (VD) to map the location classification. Traditionally nD>, 1.60, VD> 50 and nD<, 1.60, VD> 55 all glass constant (k) crown glass and other types of glass set for flint (f) of glass. Crown glass generally convex lens, a concave lens for flint glass. Usually crown glass belongs with the alkali borosilicate glass system, light crown glass belonging to the aluminum silicate system, crown glass and barium flint glass belongs to non alkali borosilicate glass system, the vast majority of flint glass belongs to lead the potassium silicate system. Along with the application of optical glass, its varieties are constantly expanding, and its composition is almost all the elements in the periodic table.