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Hanzhong Brisun Optics Co., Ltd. Is the high High precision optical element manufacturer provides customized production of Various optical lenses, including spherical lens, cylindrical lens, optical window, mirror, prism, filter, metal base mirror and other high-precision optical elements. The base materials include various optical glass, fused quartz, calcium fluoride (CaF2), zinc selenide (ZnSe), germanium (GE), silicon (SI), sapphire, metal and other materials. And provide antireflective film, high reflection film, spectroscopic film, metal film and other optical coatings.
Zinc selenide lens is usually used in high-power CO2 laser system because zinc selenide (ZnSe) has low absorption coefficient and high thermal expansion coefficient
However, since zinc selenide (ZnSe) is relatively soft (Knoop hardness is 120) and easy to scratch, it is not recommended to be used in harsh environment. Pay attention to uniform force when holding and cleaning, so that you can wear finger covers or gloves.
With positive focal length, Plano convex lens is often used in imaging or beam collimation. Coated lens is also widely used in visible light and near-infrared applications.
Technical parameters:
Material: zinc selenide (ZnSe)
Radius of curvature: ± 5mm - ± 50000mm ± 1%
Outer circle: 3mm-200mm ± 0.1mm
Center thickness tolerance: ± 0.1mm
Center deviation: 3′(we can process to 30 ″with high precision)
Surface accuracy: λ/ 4 (high precision, we can process to 1 / 8λ)
Surface quality: 40/20
Effective caliber: ≥80%
Coating: IR AR Coating 8-12μm or according to customer requirements
In addition, we have thousands of kinds of stock, such as quartz plano convex lens, quartz plano concave lens, quartz biconvex lens, quartz biconvex lens, cylindrical lens, prism, filters, windows, beamsplitter and so on. The price is preferential and the quality is excellent, which can meet your demand for a small order.
If you are interested it, welcome to inquiry us or search "Hanzhong Borisun Optics Co.,Ltd "to know about more details.
