High purity custom coated quartz glass plate is a special type of quartz glass that is mainly used in optics and electronics. The main characteristic of this type of quartz glass is its extremely high purity, usually above 99.99% SiO2, which means that it has very few impurities and bubbles, as well as high transmittance, especially for UV and visible light. These properties make it very popular for coating applications, especially in the manufacture of mirrors that require multi-layer and anti-reflection coatings.

Other key properties of high-purity quartz glass plates include their excellent thermal properties and chemical stability, which allows them to remain stable at high temperatures and in chemically aggressive environments. Also important are their physical properties such as refractive index, transmission wavelength range, hardness and solubility. For example, they typically have a refractive index of 1.46021 (at a wavelength of 546.07nm) and a transmission wavelength range of 200 to 2500nm.

In terms of applications, these quartz glass plates are widely used in industries such as optoelectronics, semiconductors, optics and communications. They are used in the manufacture of various optical components such as lenses, prisms, fiber optic connectors, etc., as well as in chemical instruments and medical devices that require high temperature and corrosion resistance.

Overall, high purity custom coated quartz glass plates play an important role in high technology due to their unique physical and chemical properties. They are used not only in traditional optical applications, but also in a wide range of high-tech industries, such as semiconductor manufacturing and communications technology.