BK7(K9) Optical Glass Plates
Refractive Index: 1.51
Hardness: 5.5Mohs
Dispersion: 0.008
Melting Point: 900℃
Composition: SiO2=69.13% B2O3=10.75% BaO=3.07% Na2O=10.40% K2O=6.29% As2O3=0.36%
Applications: common optical and microsystem materials. With the rapid development of Optics and microsystem technology, it has low price and good micro machining performance. Micro structures and micro devices can be fabricated on K9 glass. It has been used in many fields such as optoelectronics, microwave technology, diffractive optical elements and so on.
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