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  • >Barium Fluoride Plano-convex Lens

    • Barium Fluoride Plano-convex Lens

    Barium fluoride plano-convex lens is a type of positive lens used in optical systems for beam expansion, imaging, beam alignment, focusing alignment, beam alignment point light source, and other purposes. A flat convex lens with one convex surface and one flat surface, with a positive focal length, is used for applications such as reducing beam size, reducing focal length, or enlarging images. Nearly 90% optical transmittance is achieved in the spectral range of 200-9500nm. Commonly used in low-temperature refrigeration imaging systems, aerospace optical systems, and laser optical systems, lenses, beam splitters, filters, prisms, and window lenses. This material has a certain degree of water solubility and is suitable for use in dry environments. UM OPTICS can provide a diameter of 2-300mm and a thickness of 0.12-60mm (accuracy can reach 20-10,1)/ 10L@633nm ）Barium fluoride flat convex lenses can be coated with MgF2, UV-AR, UV-VIS, VIS-EXT, VIS-NIR, NIR I, NIR II, Telecom NIR, SWIR, SWIR, YAG-BBAR and other film systems.

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    Technical Parameter

    Material Data

    Transmittance

    Application Field

    Related Products
      Dia(mm) Focal Length(mm) Center Thickness(mm) Edge Thickness(mm) Design Wavelength(μm) Radius of Curvature(mm) Surface Quality Compare
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    899.500 449.500 224.900 112.720 90.200 67.570 45.080 33.870 44.800 28.350 28.380 22.619 456.700 342.520 228.350 91.340 68.500 45.670 34.250 22.830 13.700 11.296 18.270 9.130 6.850
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    60-40 80-50
    		 
    More+ Less 50.8 F2000 2.8 2.5 5 899.500 60-40

    Φ50.8mm，F2000，Barium Fluoride Planoconvex Lenses

    Number：PBa03F009

    Dia(mm)：50.8 Focal Length(mm)：F2000 Center Thickness(mm)：2.8 Edge Thickness(mm)：2.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：899.500 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Power@632.8nm：/ Irregularity@632.8nm：λ PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 50.8 F1000 3.2 2.5 5 449.500 60-40

    Φ50.8mm，F1000，Barium Fluoride Planoconvex Lenses

    Number：PBa03F008

    Dia(mm)：50.8 Focal Length(mm)：F1000 Center Thickness(mm)：3.2 Edge Thickness(mm)：2.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：449.500 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Power@632.8nm：/ Irregularity@632.8nm：λ PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 50.8 F500 3.9 2.5 5 224.900 60-40

    Φ50.8mm，F500，Barium Fluoride Planoconvex Lenses

    Number：PBa03F007

    Dia(mm)：50.8 Focal Length(mm)：F500 Center Thickness(mm)：3.9 Edge Thickness(mm)：2.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：224.900 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Power@632.8nm：/ Irregularity@632.8nm：λ PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 50.8 F250 5.4 2.5 5 112.720 60-40

    Φ50.8mm，F250，Barium Fluoride Planoconvex Lenses

    Number：PBa03F006

    Dia(mm)：50.8 Focal Length(mm)：F250 Center Thickness(mm)：5.4 Edge Thickness(mm)：2.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：112.720 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Power@632.8nm：/ Irregularity@632.8nm：λ PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 50.8 F200 6.10 2.5 5 90.200 60-40

    Φ50.8mm，F200，Barium Fluoride Planoconvex Lenses

    Number：PBa03F005

    Dia(mm)：50.8 Focal Length(mm)：F200 Center Thickness(mm)：6.10 Edge Thickness(mm)：2.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：90.200 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Power@632.8nm：/ Irregularity@632.8nm：λ PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 50.8 F150 7.4 2.5 5 67.570 60-40

    Φ50.8mm，F150，Barium Fluoride Planoconvex Lenses

    Number：PBa03F004

    Dia(mm)：50.8 Focal Length(mm)：F150 Center Thickness(mm)：7.4 Edge Thickness(mm)：2.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：67.570 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Power@632.8nm：/ Irregularity@632.8nm：λ PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 50.8 F100 10.5 2.5 5 45.080 60-40

    Φ50.8mm，F100，Barium Fluoride Planoconvex Lenses

    Number：PBa03F003

    Dia(mm)：50.8 Focal Length(mm)：F100 Center Thickness(mm)：10.5 Edge Thickness(mm)：2.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：45.080 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Power@632.8nm：/ Irregularity@632.8nm：λ PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 50.8 F75 14 2.5 5 33.870 60-40

    Φ50.8mm，F75，Barium Fluoride Planoconvex Lenses

    Number：PBa03F002

    Dia(mm)：50.8 Focal Length(mm)：F75 Center Thickness(mm)：14 Edge Thickness(mm)：2.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：33.870 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Power@632.8nm：/ Irregularity@632.8nm：λ PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F94.4 4 2.2 0.5876 44.800 60-40

    Φ25.4mm，F94.4，Barium Fluoride Planoconvex Lenses

    Number：PBa03E021

    Dia(mm)：25.4 Focal Length(mm)：F94.4 Center Thickness(mm)：4 Edge Thickness(mm)：2.2 Design Wavelength(μm)：0.5876 Radius of Curvature(mm)：44.800 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Power@632.8nm：/ Irregularity@632.8nm：/ PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F59.8 5 2 0.5876 28.350 60-40

    Φ25.4mm，F59.8，Barium Fluoride Planoconvex Lenses

    Number：PBa03E020

    Dia(mm)：25.4 Focal Length(mm)：F59.8 Center Thickness(mm)：5 Edge Thickness(mm)：2 Design Wavelength(μm)：0.5876 Radius of Curvature(mm)：28.350 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Power@632.8nm：/ Irregularity@632.8nm：/ PV@632.8nm：/ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
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    Material Data
    Optical Properties
    Transmission Range0.15-14μm
    Transmittance>94%@0.35nm-10.8μm
    Refractive Index

    1.462@2.58μm

    1.45@5μm

    Reflection Loss

    6.8%@2.58μm(both surfaces)

    6.5%@5μm(both surfaces)

    5.3%@10.35μm(both surfaces)

    Absorption Coefficienet3.2×10-4@6μm
    StructureCubic Crystal System
    Cleavage Planes<111>
    Physical Properties
    Density [g/cm3]4.89
    Melting Point [℃]1386
    Thermal Conductivity [W/(m×K)] 11.72 @ 286K
    Thermal Expansion [10-6/K]18.1 @ 273K
    Knoop Hardness [kg/mm2]82
    Specific Heat Capacity [J/(kg×K)]410
    Dielectric Constant7.33 @ 1 MHz
    Young's Modulus (E) [GPa]53.07
    Shear Modulus(G) [GPa]25.4
    Bulk Modulus(K) [GPa]56.4
    Poisson Coefficient0.343
    Chemical Properties
    Solubility / g/L1.7g @ 20℃
    Molecular Weight / g/mol175.3238


    Barium Fluoride Transmittance CurveBarium Fluoride Transmittance Curve

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