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IR Optical AR Coating 8-14um Single Crystal Germanium Lens For Thermal Imaging

Wuhan Siwer Optics Co.,Ltd
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    Buy cheap IR Optical AR Coating 8-14um Single Crystal Germanium Lens For Thermal Imaging from wholesalers
     
    Buy cheap IR Optical AR Coating 8-14um Single Crystal Germanium Lens For Thermal Imaging from wholesalers
    • Buy cheap IR Optical AR Coating 8-14um Single Crystal Germanium Lens For Thermal Imaging from wholesalers
    • Buy cheap IR Optical AR Coating 8-14um Single Crystal Germanium Lens For Thermal Imaging from wholesalers
    • Buy cheap IR Optical AR Coating 8-14um Single Crystal Germanium Lens For Thermal Imaging from wholesalers
    • Buy cheap IR Optical AR Coating 8-14um Single Crystal Germanium Lens For Thermal Imaging from wholesalers
    • Buy cheap IR Optical AR Coating 8-14um Single Crystal Germanium Lens For Thermal Imaging from wholesalers

    IR Optical AR Coating 8-14um Single Crystal Germanium Lens For Thermal Imaging

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    Price : 25-98USD/piece
    Payment Terms : T/T, Western Union
    Supply Ability : 3000 pieces/month
    Delivery Time : 3-4 weeks
    Brand Name : Wuhan Siwer Optics
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    IR Optical AR Coating 8-14um Single Crystal Germanium Lens For Thermal Imaging

    Infrared Germanium Lens

    Wavelength Range of 2 - 16μm

    Rugged, Durable Material

    Ideal for Defense, Security, and Thermal Imaging Applications

    Additional Infrared Lenses Available in Popular Substrates


    We will choose high quality single crystal Germanium material to make lens. The resistivity of germanium material is usually 5-40 ohms. We can also choose Germanium material with specified resistivity according to customer's requirements.
    The production technology of germanium lens usually includes low-speed polishing, high-speed polishing and single point diamond turning techniques.
    a) Low-speed polishing, also known as classical polishing, can produce germanium lenses with higher accuracy, but the production efficiency is very low and the cost is relatively high.
    b) High-speed polishing can make germanium lens quickly. It is the best choice in mass production. It has lower production cost.
    c) Single point diamond turning techniques can make germanium lens with arbitrary curved surface, and single point car can also be selected for small batch germanium lens samples.

    According to the customer's use scenario, we will recommend suitable germanium lens for customers and choose the best solution.



    Optical Specifications of Germanium Lens

    MaterialSingle Crystal Germanium
    AR Coating Range3-5um,8-12um,3-11um
    Reflectance over
    AR Coating Range @ 0° AOI

    Ravg < 2%,3-5um or 8-12um

    Ravg<5%,3-11um

    Transmission over
    AR Coating Range @ 0° AOI
    Tavg > 94%,3-5um or 8-12um
    Diameter Tolerance+0.0/-0.1 mm
    Thickness Tolerance±0.1 mm
    Focal Length Tolerance±2%
    Surface Quality60-40 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 Wavelength10.6 μm


    Transmittance of Antireflection coatings:


    Germanium properties:

    Chemical FormulaGe
    Crystal FormPoly or Single Crystal
    Crystal ClassCubic
    Resistivity, Ohm*cm0.01-40
    Lattice Constant, Å5.66
    Molecular Weight72.6
    Density, g/cm3 at 300 K5.33
    Dielectric Constant for 9.37 x 109 Hz at 300 K16.6
    Melting Temperature, K1210
    Thermal Conductivity, W/(m K) at 293 K59
    Thermal Expansion, 1/K at 298 K6.1 x 10-6
    Specific Heat, cal/(g K) at 273-373 K0.074
    Debye Temperature, K370
    Bandgap, eV0.67
    Solubility in waterNone
    Knoop Hardness, kg/mm2800
    Mohs Hardness6.3
    Young's Modulus, GPa102.66
    Shear Modulus, GPa67.04
    Bulk Modulus, GPa77.86
    Poisson's Ratio0.278


    Infrared Elements Selection Guide

    Production process


    What's the way of shipping?
    We accept DHL, Fedex, TNT, UPS, SF, EMS etc. If you have your own express account, it's great.


    How to pay?

    (1) T/T, PayPal, West Union,etc

    (2) Bank Fee: West Union-USD30.00(≤USD3000.00),

    T/T-USD20.00+, PayPal-5%. Please consult the local bank.


    What's the deliver time?
    For inventory: the delivery time is around 5 workdays.

    Customized products: the delivery time is 10 to 30 workdays. According to the quantity and precision.

    Can I customize the products based on my need?
    Yes, we can customize the material, specifications and optical coating for your optical components based on your needs. OEM is available.


    Quality IR Optical AR Coating 8-14um Single Crystal Germanium Lens For Thermal Imaging for sale
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