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BK7 Fused Silica Ge Si ZnSe Plano Concave Lens For Optical System

    Buy cheap BK7 Fused Silica Ge Si ZnSe Plano Concave Lens For Optical System from wholesalers
     
    Buy cheap BK7 Fused Silica Ge Si ZnSe Plano Concave Lens For Optical System from wholesalers
    • Buy cheap BK7 Fused Silica Ge Si ZnSe Plano Concave Lens For Optical System from wholesalers

    BK7 Fused Silica Ge Si ZnSe Plano Concave Lens For Optical System

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    Brand Name : Wuhan Siwer Optics
    Supply Ability : 20000 pieces/month
    Delivery Time : 4-5 weeks
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    BK7 Fused Silica Ge Si ZnSe Plano Concave Lens For Optical System

    Optical Plano Concave Lens

    Plano-Concave Lenses are ideal for beam expansion, light projection, or for expanding an optical system’s focal length. Plano-Concave Lenses, which have one concave surface, are Optical Lenses with negative focal lengths. PCV Lenses should be oriented with the plano, or flat, surface towards the desired focal plane. PCV Lenses are ideal for use in a range of applications or industries.

    • Wavelength Range of 350-2200nm
    • Precision Diameter and Centration Tolerances Allow for Easy OEM Integration
    • Wide Variety of Diameters, Focal Lengths, and Coatings
    • Anti-Reflection Coating Options: MgF2, VIS 0°, VIS-NIR, NIR I, and NIR II

    Plano-Concave (PCV) lenses have one flat and one inward curved surface. PCV lenses have a negative focal length and are used for image reduction or to spread light.


    Optical AR Coatings

    a) Uncoated,The surface reflectivity of uncoated visible lenses(Refractive index=1.5) is about 4%.

    Click on the link to see how to calculate reflectivity

    b) AR/AR@400-700nm,Tavg>99.4%

    c) AR/AR@450-650nm,Tavg>99.6%

    d) AR/AR@400-1000nm,Tavg>98.5%

    e) We can also customize high damage threshold antireflective coatings



    Production Line


    Optical Properties of Plano Concave Lens

    MaterialOptical glass
    AR Coating Range400-700nm or customized
    Reflectance over
    AR Coating Range @ 0° AOI
    Ravg<0.5%
    Diameter Tolerance+0.0/-0.1 mm
    Thickness Tolerance±0.1 mm
    Focal Length Tolerance±2%
    Surface Quality40/20 Scratch-Dig
    Surface Flatness
    (Plano Side)
    λ/2 at 633nm
    Spherical Surface Powerc
    (Convex Side)
    1.5λ at 633nm
    Surface Irregularity
    (Peak to Valley)
    λ/2 at 633nm
    Centration<3 arcmin
    Clear Aperture>Ø10.16 mm (Ø1/2" Lenses)
    >Ø20.32 mm (Ø1" Lenses)
    Design Wavelength546nm

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