Knowledge

Quartz glass consists solely of silicon dioxide, and the currently widely accepted structural model is the continuous random network (CRN) model. In t

Fiber preform is an upstream product with high technical content, and scarce supply in the optical fiber and cable industry. It is mainly used for the

Quartz glass has excellent mechanical, thermal, optical and chemical properties, and is widely used in semiconductor, aerospace, optics, optical commu

The general fluorescent tube is made of glass, with sockets at both ends to connect the power supply and fix the position of the fluorescent tube.

The high temperature special effect tube is only about 1 cm long without film due to high temperature resistance, while other tubes are not resistant

The high temperature special effect tube, the alpine tube and the high-efficiency tube adopt three-target, double-target, and single-target magnetron

Under the same light conditions, the heat absorption of ordinary pipes is not as high as that of the three high-level pipes, and can not even meet the

​The absorption ratio of the three executives has increased by 12%, the emission ratio has been reduced by 30%-40%, super absorption, less heat loss,

​The film structure is different, resulting in a different principle of absorbing the sun's rays. The graded film is a multilayer film, and its absorp

The three-senior tube is an interference film, and the ordinary tube is a gradient film. The difference between them is mainly manifested in the diffe

According to the production process, it is divided into: solar ordinary clarinet, ordinary blue tube; three high blue tube, three high purple gold tub

An ordinary all-glass vacuum tube consists of seven parts: outer glass tube, inner glass tube, and selective absorption coating. Vacuum interlayer, ge