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  • >Calcium Fluoride Meniscus Lens

    • Calcium Fluoride Meniscus Lens

    The calcium fluoride meniscus lens is convex on one side and concave on the other. It can be a converging lens or a diverging lens, determined by the refractive index, curvature, and radius, used in fields such as laser systems, infrared optics, ultraviolet optics, and high-energy detectors. High hardness, high resistance to mechanical shock and thermal shock, with good transmittance in the ultraviolet, visible, and infrared fields. Optical components used in laser systems, thermal imaging components in infrared optics, optical crystals in the ultraviolet cutoff band in ultraviolet optics, and sensitive components in high-energy detectors. 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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    The product undergoes multiple inspections before being stored, and the quality is guaranteed. Please use it with confidence.

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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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    25.4 12.7
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    F-1000 F-750 F-500 F-200 F-150 F-100 F-75 F-50 F-40 F1000 F750 F500 F200 F150 F100 F75 F50 F40 F-80 F-20 F80 F20
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    4 5.6 7.1 8.9 3 2 4.7
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    4.2 4.3 4.4 5.1 5.5 6.5 8.5 9.4 10.4 3.8 3.7 3.6 3 2.7 1.7 2 2.4 5.3 1.4
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    R1(438.1) R2(-211.1) R1(328.2) R2(-158.1) R1(218.3) R2(-105.4) R1(86.2) R2(-41.4) R1(64.1) R2(-30.8) R1(42.0) R2(-20.2) R1(30.80) R2(-14.80) R1(68.50) R2(-15.50) R(1308.3) R2(-15.5) R1(250.00) R2(-638.5) R1(150.00) R2(-290.8) R1(125.00) R2(-317.8) R1(40.00) R2(-75.9) R1(35.00) R2(-78.6) R1(20.00) R2(-36.80) R1(15.50) R2(-28.0) R1(15.50) R2(-55.20) R1(15.00) R2(-146.9) R1(33.7) R2(-16.2) R1(20.4) R2(-9.8) R1(95.60) R2(-7.5) R1(20.00) R2(-49.1) R1(15.00) R2(-52.8) R1(7.50) R2(-72.4)
    		 
    More+ Less 25.4 F-1000 4 4.2 R1(438.1) R2(-211.1)

    Φ25.4mm，F-1000，Calcium Fluoride Meniscus Lenses

    Number：PCa07E018

    Dia(mm)：25.4 Focal Length(mm)：F-1000 Center Thickness(mm)：4 Edge Thickness(mm)：4.2 Design Wavelength(μm)：4 Radius of Curvature(mm)：R1(438.1) R2(-211.1) Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Calcium Fluoride（CaF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F-750 4 4.3 R1(328.2) R2(-158.1)

    Φ25.4mm，F-750，Calcium Fluoride Meniscus Lenses

    Number：PCa07E017

    Dia(mm)：25.4 Focal Length(mm)：F-750 Center Thickness(mm)：4 Edge Thickness(mm)：4.3 Design Wavelength(μm)：4 Radius of Curvature(mm)：R1(328.2) R2(-158.1) Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Calcium Fluoride（CaF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F-500 4 4.4 R1(218.3) R2(-105.4)

    Φ25.4mm，F-500，Calcium Fluoride Meniscus Lenses

    Number：PCa07E016

    Dia(mm)：25.4 Focal Length(mm)：F-500 Center Thickness(mm)：4 Edge Thickness(mm)：4.4 Design Wavelength(μm)：4 Radius of Curvature(mm)：R1(218.3) R2(-105.4) Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Calcium Fluoride（CaF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F-200 4 5.1 R1(86.2) R2(-41.4)

    Φ25.4mm，F-200，Calcium Fluoride Meniscus Lenses

    Number：PCa07E015

    Dia(mm)：25.4 Focal Length(mm)：F-200 Center Thickness(mm)：4 Edge Thickness(mm)：5.1 Design Wavelength(μm)：4 Radius of Curvature(mm)：R1(86.2) R2(-41.4) Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Calcium Fluoride（CaF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F-150 4 5.5 R1(64.1) R2(-30.8)

    Φ25.4mm，F-150，Calcium Fluoride Meniscus Lenses

    Number：PCa07E014

    Dia(mm)：25.4 Focal Length(mm)：F-150 Center Thickness(mm)：4 Edge Thickness(mm)：5.5 Design Wavelength(μm)：4 Radius of Curvature(mm)：R1(64.1) R2(-30.8) Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Calcium Fluoride（CaF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F-100 4 6.5 R1(42.0) R2(-20.2)

    Φ25.4mm，F-100，Calcium Fluoride Meniscus Lenses

    Number：PCa07E013

    Dia(mm)：25.4 Focal Length(mm)：F-100 Center Thickness(mm)：4 Edge Thickness(mm)：6.5 Design Wavelength(μm)：4 Radius of Curvature(mm)：R1(42.0) R2(-20.2) Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Calcium Fluoride（CaF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F-75 4 8.5 R1(30.80) R2(-14.80)

    Φ25.4mm，F-75，Calcium Fluoride Meniscus Lenses

    Number：PCa07E012

    Dia(mm)：25.4 Focal Length(mm)：F-75 Center Thickness(mm)：4 Edge Thickness(mm)：8.5 Design Wavelength(μm)：4 Radius of Curvature(mm)：R1(30.80) R2(-14.80) Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Calcium Fluoride（CaF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F-50 4 9.4 R1(68.50) R2(-15.50)

    Φ25.4mm，F-50，Calcium Fluoride Meniscus Lenses

    Number：PCa07E011

    Dia(mm)：25.4 Focal Length(mm)：F-50 Center Thickness(mm)：4 Edge Thickness(mm)：9.4 Design Wavelength(μm)：4 Radius of Curvature(mm)：R1(68.50) R2(-15.50) Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Calcium Fluoride（CaF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F-40 4 10.4 R(1308.3) R2(-15.5)

    Φ25.4mm，F-40，Calcium Fluoride Meniscus Lenses

    Number：PCa07E010

    Dia(mm)：25.4 Focal Length(mm)：F-40 Center Thickness(mm)：4 Edge Thickness(mm)：10.4 Design Wavelength(μm)：4 Radius of Curvature(mm)：R(1308.3) R2(-15.5) Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Calcium Fluoride（CaF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
    More+ Less 25.4 F1000 4 3.8 R1(250.00) R2(-638.5)

    Φ25.4mm，F1000，Calcium Fluoride Meniscus Lenses

    Number：PCa07E009

    Dia(mm)：25.4 Focal Length(mm)：F1000 Center Thickness(mm)：4 Edge Thickness(mm)：3.8 Design Wavelength(μm)：4 Radius of Curvature(mm)：R1(250.00) R2(-638.5) Surface Quality：40-20 Diameter Tolerance(mm)：+0.0/-0.1 Thk Tolerance(mm)：±0.1 Substrate Material：Calcium Fluoride（CaF2） Power@632.8nm：3/2λ Irregularity@632.8nm：λ/4 Centering：<3′ Clear Aperture：>90% Coating：Uncoated REACH：Compliant ROHS：Compliant
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    Material Data
    Optical Properties
    Transmission Range0.13-10μm
    Transmittance>94%@193nm-7.87μm
    Refractive Index

    1.4288@2.5μm

    1.39908@5μm

    Reflection Loss5.4%@5μm(both surfaces)
    Absorption Coefficienet7.8×10-4@2.7μm
    StructureCubic Crystal System
    Cleavage Planes<111>
    Physical Properties
    Density [g/cm3]3.18
    Melting Point [℃]1420
    Thermal Conductivity [W/(m×K)]9.71 @ 293K
    Thermal Expansion [10-6/K]18.5 @ 273K
    Knoop Hardness [kg/mm2]158.3
    Specific Heat Capacity [J/(kg×K)]854
    Dielectric Constant6.76 @ 1 MHz
    Young's Modulus (E) [GPa]75.8
    Shear Modulus(G) [GPa]33.77
    Bulk Modulus(K) [GPa]82.71
    Poisson Coefficient0.26
    Chemical Properties
    Solubility / g/L0.016g @ 20℃
    Molecular Weight / g/mol78.0748

    Calcium Fluoride Transmittance CurveCalcium Fluoride Transmittance Curve

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