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K9玻璃/BK7 Glass

K9玻璃是用K9料制成的玻璃制品，K9料屬于光學玻璃，由于它晶瑩剔透，加工出來的產品，在市面 上稱為水晶玻璃制品。K9的組成如下：SiO₂=69.13% B₂O₃=10.75% BaO=3.07% Na₂0=10.40% K₂0=6.29% As₂O₃=0.36%.光學玻璃中的冕牌玻璃，屬于硼硅酸鹽系統。它的折射率和阿貝數都 很低，價格低廉，微加工性能良好，其光學系數為1.5163,色散是80多，幾乎無氣泡和雜質，外表清晰無色，由高純度材料制成。在K9玻璃上制作微米、納米尺度的微結構和微器件的技術，已應用于光電子、微波技術、衍射光學元件等眾多領域。

K9 glass is a glass product made of K9 material. K9 material belongs to optical glass. Because it is crystal clear, the processed product is called crystal glass in the market. The composition of K9 is as follows: SiO2 = 69.13% B2O3 = 10.75% BaO = 3.07% Na20 = 10.40% K20 = 6.29% As2O3 = 0.36%. The brand glass in optical glass belongs to the borosilicate system. Its refractive index and Abbe number are very low, the price is low, the micro-machining performance is good, its optical coefficient is 1.5163, the dispersion is more than 80, almost no bubbles and impurities, the appearance is clear and colorless, and it is made of high-purity material. The technology of making micro- and nano-scale microstructures and micro-devices on K9 glass has been applied to many fields such as optoelectronics, microwave technology, and diffractive optical components.