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  • >Barium Fluoride Biconvex Lens

    • Barium Fluoride Biconvex Lens

    Barium fluoride biconvex lenses are used to concentrate light from point sources or transmit images to other optical systems, and are used in fields such as telescopes, microscopes, sights, lasers, and fibers. It has high transmittance in the ultraviolet, visible, and infrared fields, thus providing better light control and clearer images. In addition, it also has high hardness and wear resistance, and can withstand high temperatures and pressures, so it has good application effects in extreme environments such as high temperature and high pressure. It 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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    All products are provided with invoices, with a tax point of 13.

    The product undergoes multiple inspections before being stored, and the quality is guaranteed. Please use it with confidence.

    Spot products, shipped within 48 hours. For non stock or customized products, please consult.

    International order logistics include DHL, FedEx, TNT, and EMS

    When receiving the product, please ensure the integrity of the product packaging box first. If there is serious damage to the appearance, please refuse and contact us, and we will handle it for you as soon as possible.

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    If you need customization or bulk production, please contact us online and we will offer you a discounted price.

    Technical Parameter

    Material Data

    Transmittance

    Application Field

    Related Products
      Dia(mm) Focal Length(mm) Center Thickness(mm) Edge Thickness(mm) Radius of Curvature(mm) Compare
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    38.1 25.4 12.7
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    F63.5 F38.1 F150 F50.8 F25.4 F76.2 F12.7
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    9.2 15.2 3.2 4.9 5.7 10.5 2.1 2.4 3.30 5.80
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    2.5 2 2.1 1.5
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    55.85 31.84 134.90 56.49 44.87 21.23 68.39 45.43 22.34 10.471
    		 
    More+ Less 38.1 F63.5 9.2 2.5 55.85

    Φ38.1mm，F63.5，Barium Fluoride Biconvex Lenses

    Number：PBa05F002

    Dia(mm)：38.1 Focal Length(mm)：F63.5 Center Thickness(mm)：9.2 Edge Thickness(mm)：2.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：55.85 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Irregularity@632.8nm：λ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 38.1 F38.1 15.2 2.5 31.84

    Φ38.1mm，F38.1，Barium Fluoride Biconvex Lenses

    Number：PBa05F001

    Dia(mm)：38.1 Focal Length(mm)：F38.1 Center Thickness(mm)：15.2 Edge Thickness(mm)：2.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：31.84 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Irregularity@632.8nm：λ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F150 3.2 2 134.90

    Φ25.4mm，F150，Barium Fluoride Biconvex Lenses

    Number：PBa05E005

    Dia(mm)：25.4 Focal Length(mm)：F150 Center Thickness(mm)：3.2 Edge Thickness(mm)：2 Design Wavelength(μm)：5 Radius of Curvature(mm)：134.90 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Irregularity@632.8nm：λ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F63.5 4.9 2 56.49

    Φ25.4mm，F63.5，Barium Fluoride Biconvex Lenses

    Number：PBa05E004

    Dia(mm)：25.4 Focal Length(mm)：F63.5 Center Thickness(mm)：4.9 Edge Thickness(mm)：2 Design Wavelength(μm)：5 Radius of Curvature(mm)：56.49 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Irregularity@632.8nm：λ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F50.8 5.7 2 44.87

    Φ25.4mm，F50.8，Barium Fluoride Biconvex Lenses

    Number：PBa05E003

    Dia(mm)：25.4 Focal Length(mm)：F50.8 Center Thickness(mm)：5.7 Edge Thickness(mm)：2 Design Wavelength(μm)：5 Radius of Curvature(mm)：44.87 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Irregularity@632.8nm：λ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F25.4 10.5 2.1 21.23

    Φ25.4mm，F25.4，Barium Fluoride Biconvex Lenses

    Number：PBa05E002

    Dia(mm)：25.4 Focal Length(mm)：F25.4 Center Thickness(mm)：10.5 Edge Thickness(mm)：2.1 Design Wavelength(μm)：5 Radius of Curvature(mm)：21.23 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Irregularity@632.8nm：λ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 12.7 F76.2 2.1 1.5 68.39

    Φ12.7mm，F76.2，Barium Fluoride Biconvex Lenses

    Number：PBa05C004

    Dia(mm)：12.7 Focal Length(mm)：F76.2 Center Thickness(mm)：2.1 Edge Thickness(mm)：1.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：68.39 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Irregularity@632.8nm：λ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 12.7 F50.8 2.4 1.5 45.43

    Φ12.7mm，F50.8，Barium Fluoride Biconvex Lenses

    Number：PBa05C003

    Dia(mm)：12.7 Focal Length(mm)：F50.8 Center Thickness(mm)：2.4 Edge Thickness(mm)：1.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：45.43 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Irregularity@632.8nm：λ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 12.7 F25.4 3.30 1.5 22.34

    Φ12.7mm，F25.4，Barium Fluoride Biconvex Lenses

    Number：PBa05C002

    Dia(mm)：12.7 Focal Length(mm)：F25.4 Center Thickness(mm)：3.30 Edge Thickness(mm)：1.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：22.34 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Irregularity@632.8nm：λ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 12.7 F12.7 5.80 1.5 10.471

    Φ12.7mm，F12.7，Barium Fluoride Biconvex Lenses

    Number：PBa05C001

    Dia(mm)：12.7 Focal Length(mm)：F12.7 Center Thickness(mm)：5.80 Edge Thickness(mm)：1.5 Design Wavelength(μm)：5 Radius of Curvature(mm)：10.471 Surface Quality：60-40 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Barium Fluoride（BaF2） Irregularity@632.8nm：1λ Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    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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