Optical magnesia films are used in different fields, including environmental, chemical, abrasion resistance industry, EMI shielding, climate control, bio-protection, temperature operation, a variety of optical components and filters. Demand from a variety of electronic instruments, including flat panel displays, laser optics, computer, television screens and cameras will promote the development of the market. A key feature of optical coating is its surface quality. The surface quality determines the performance of optical devices. High quality optical coating is starting to smooth super-polished optical substrate, and its roughness is 0.05 nm. Conventional coating will increase the optical roughness of the substrate surface roughness depends on the technology used. For example, the evaporation technique deposited film surface roughness typical 1 nm, typical of ion-assisted deposition technique to obtain surface roughness of 0.4 nm. Ion beam sputtering deposition of thin nickel oxide film surface roughness and super polished substrates equivalent of 0.05 nm. As an important branch of modern optics, optical coatings developed with the wave theory of light and relative theoretical basis. Optical coating has been widely used in various optical devices (such as the laser ã€€ã€€FTTH ODN resonator, interference filter, optical lens, etc.). Its important role in the field of electric light has gradually been recognized. 

The United States is the world's largest optical coating market. The market share in 2008 was about $ 2.81 billion. The next is in Asia demand, following by European demand thirdly. The Asian market has accounted for 86% of total global market. The market valuation of transmission and reflection film is about $ 3 billion in 2008. Global reflection film market is expected to reach $ 699 million in 2012.Source:

Hide Comments | Add Comment