Glass ingredient Ⅰ

Glass is generally classified into oxide glass and non-oxide glass by main components.

The oxide glass is further classified into silicate glass, borate glass, phosphate glass, and the like.

Non-oxide glasses are few in variety and quantity, mainly chalcogenide glass and halide glass. The anion of chalcogenide glass is mostly sulfur, selenium, tellurium, etc. It can cut off short-wavelength light and pass through yellow and red light, as well as near and far-infrared light, and its resistance is low, with switch and memory characteristics. Halide glass has a low refractive index, low dispersion, and is often used as an optical glass.

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