Optical glass and optical parts

Nov. 18, 2019

Narrow optical glass refers to colorless optical glass; generalized optical glass also includes colored optical glass, laser glass, quartz optical glass, radiation resistant glass, ultraviolet infrared optical glass, fiber optic glass, acousto-optic glass, magneto-optical glass and photochromism glass. Optical glass can be used to make lenses, prisms, mirrors, windows, optical glass dome,etc. in optical instruments. Components made of optical glass are key components in optical instruments.

Optical glass is the foundation and an important part of the optoelectronic technology industry. Especially after the 1990s, with the continuous integration of optical and electronic information science and new materials science, the application of optical glass as the basic material of optoelectronics in the three fields of optical transmission, optical storage and photoelectric display is advancing rapidly. Social informationization is one of the basic conditions for the development of photoelectric information technology.

With the sustained and steady development of the domestic economy, China's optical glass manufacturing industry has developed rapidly. According to the statistics of the National Bureau of Statistics, in 2010, the number of enterprises above designated size in the high precision optical glass dome manufacturer reached 246. The annual sales revenue of the industry was 23.405 billion yuan, a year-on-year increase of 53.70%; the profit was 1.537 billion yuan, an increase of 87.10% over the same period; The scale reached 26.45 billion yuan, a year-on-year increase of 77.49%. As the optical glass manufacturing industry is dominated by domestic sales, the financial crisis has relatively little impact on it, and the industry still shows a good growth momentum.

Double Concave Lens

Double Concave Lens

Under the trend of structural adjustment and industrial transfer of the international optoelectronic industry, the world's optical cold processing capacity has been transferred to China on a large scale. At present, China's optical component manufacturers mainly supply optoelectronic products manufacturers in Asia. In the past ten years, the traditional optical processing enterprises in China have actively cooperated with international advanced enterprises, and the production scale of enterprises has rapidly expanded due to the advantages of manufacturing cost, which has driven the optical cold processing industry to enter a high-speed growth. Mainland China has become the world after Taiwan. The largest scale optical cold processing capacity is grounded and gathered. At present, almost all well-known optical companies in Japan, South Korea, Taiwan, the United States and Germany have set up factories in China, and the market competition is fierce.

The negative growth of the digital camera industry in 2013 led to the stagnant business income of traditional optical lens lenses. The demand for optical components in the mobile phone and mobile device industry is strong, especially for the growth of domestic smart phone sales. The revenue of companies such as modules and filters for mobile cameras and camera components has increased significantly.

Based on the performance statistics of listed companies, the sales volume of upstream and midstream (optical materials and optical components) in the optical industry in China in 2013 was approximately RMB 10 billion. The proportion of high precision optical components of Chinese mainland enterprises in the global optical component market has reached 80%. China is now the largest exporter of optical lenses and optical lenses.

However, the sharp decline in the profit margin of most companies has made the development of enterprises difficult. Only the companies engaged in lens modules supporting mobile devices and tablet devices have seen a significant increase in revenue and profits, such as Sunny Optical, operating revenue from 39 in 2012. 100 million yuan has grown to 5.8 billion yuan in 2013, an increase of 45.9%.

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