What are the raw materials needed to manufacture optical glass?

        Optical glass is made of high-purity silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium and other oxides mixed according to a specific formula, melted at high temperature in a platinum crucible, stirred evenly with ultrasonic waves to remove air bubbles; Cool down slowly over time to avoid internal stress on the glass block. After cooling, the glass block must be measured by optical instruments to check whether the purity, transparency, uniformity, refractive index and dispersion rate meet the specifications. Qualified glass blocks are heated and forged into optical lens blanks.

        Due to the high refractive index, low dispersion and good chemical stability of rare earths, optical glass can be produced for the manufacture of lenses for advanced cameras, video cameras, telescopes and other advanced optical instruments. Optical glass can be used to manufacture lenses, prisms, mirrors and windows in optical instruments. Components made of optical glass are key elements in optical instruments.

        Glass is an ancient building material. With the common development of modern human society, the glass industry has created a variety of glass with unique functions, making the glass family continue to thrive. Today, let's focus on the key points of knowledge about optical glass!

        Optical glass refers to glass that can change the propagation direction of light and change the relative spectral distribution of ultraviolet, visible or infrared light. Optical glass must meet the requirements of light imaging, therefore, the requirements for the quality of optical glass are also very high.