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What is K9 glass?

K9 glass is a type of glass made from K9 material, used in fields such as optical coating. K9 material is classified as optical glass. Due to its crystal-clear transparency, many factories have emerged that specialize in processing K9 material. The products they manufacture are commonly referred to as crystal glass items in the market.

The composition of K9 is as follows:

SiO2 = 69.13% B2O3 = 10.75% BaO = 3.07% Na2O = 10.40% K2O = 6.29% As2O3 = 0.36%

Its optical constants are: refractive index = 1.51630, dispersion = 0.00806, Abbe number = 64.06.

The national standard for optical glass classifies glasses according to their Abbe number. Glasses with an Abbe number ≥50 are designated as crown glasses and represented by the letter “K”; glasses with an Abbe number <50 are designated as flint glasses and represented by the letter “F”. Under these two main categories, further subdivisions are made using light “Q”, heavy “Z”, extra-heavy “T”, and chemical element symbols preceded by a prefix and followed by a suffix. In total, there are 18 major categories and 141 specific grades.

For example: BaK11 (barium crown) K9 (crown)

Generally speaking, crown glass belongs to the alkali-silicate system, while the vast majority of flint glass belongs to the lead-silicate system.

What is quartz glass?

According to their spectral characteristics, filters can be classified into several categories.

What is quartz glass?

According to their spectral characteristics, filters can be classified into several categories.

Champion Optics is a high-tech enterprise integrating the research and development of optical thin films, the development of new spectral instruments, and spectral image processing and application.

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