Optical Glass, Infrared Optical Glass, IR manufacturer / supplier in China, offering Infrared Optical Glass Filters, Borosilicate Glass Windows for Fireplace, K9 Materials Cylindrical Optical Glass Lens and so on.
Min. Order / Reference FOB Price | |
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50 Piece | US $5.00/ Piece |
Local Area: | Jian, Jiangxi, China |
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R&D Capacity: | OEM, ODM, Other |
Payment Terms: | LC, T/T, PayPal |
Usage: | Lighting, Medical, Optical |
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Thickness Range: | Customized |
Color: | Transparent |
H-K9L optical glass windows
Product description:
H-K9L(N-BK7)composition: SiO2=69.13% B2O3=10.75% BaO=3.07% Na2O=10.40% K2O=6.29% As2O3=0.36%.
(BK7) optical glass has excellent mechanical properties and very low air bubbles and impurities, good scratch resistance. Because of its chemical stability, no special treatment grinding and polishing. Used in optoelectronics, microwave technology, and many other areas of diffractive optical elements.
Specification of our BK7/H-K9L as following:
H-K9L(BK7) propetyValueopticalRefractive index1.5168Abbe number63.96Mechanical propetyDensity2.51g/cm3Knoop hardness HK 100610kg/mm2Elasticity modulus82 x 103kN/mm2Poisson ratio μ0.21Thermal propety Softening ponit719°C Annealing point657°C Strain point624°C Thermal conductivity1.1W/m.°C Specific heat879J/kg.°C Thermal expansivity7.1x10E-6/KChemical propetyHydrolysis2ClassAcidproof1ClassAlkalineproof2Class
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