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    AI Overview
    Germanium Windows - Uncoated & AR Coated - UQG
    Germanium wedge windows are specialized infrared optical components used to eliminate interference patterns (etaloning) by diverting reflections, commonly employed in IR thermal imaging, laser systems, and spectroscopy. Featuring a high refractive index (
    ≈4.0is approximately equal to 4.0
    ≈4.0
    ) and superior transmission between
    2
    --
    14
    𝜇
    m
    , they are rugged, hard, and ideal for demanding 3-5
    𝜇
    m
     (MWIR) and 8-12
    𝜇
    m
     (LWIR) applications. 
    Key Features & Applications 
    • Wedge Angle: Typically designed with slight angles (e.g.,
      0.00870.0087
      0.0087
       radians or
      0.50.5
      0.5
       degrees) to prevent unwanted back reflections in optical paths.
    • Material Properties: High hardness (Knoop 780), insoluble in water, but transmission degrades at higher temperatures (above
      100∘
      C
      ).
    • Applications: Ideal for infrared spectroscopy, defense systems, and thermal imaging systems.
    • Coating Options: Available as uncoated, or with broadband anti-reflection (BBAR) and Diamond-Like Coatings (DLC) for enhanced durability and transmission. 
    Standard Specifications 
    • Diameter: Common sizes include 12.7 mm, 25.4 mm, and 38.1 mm.
    • Thickness: Often ranges from 2 mm to 5 mm.
    • Operating Range: 2 – 14
      𝜇
      m
       (best for thermal IR).       
    Common Suppliers 
    • Alkor Technologies: Offers, for example, 25.4mm and 12.7mm diameter coated/uncoated germanium wedge windows.
    • UM OPTICS: Specializes in infrared optical materials.
    • UQG Optics: Supplies AR/DLC coated options.
    • TYDEX: Provides specialized components for thermography. 
    • GE-ww-38.1-5 38.1 mm Dia. Germanium Wedge Window; t ... - 3DOptix
      Germanium Wedge Window; t=5mm Uncoated. This is the GE-ww-38.1-5, a 38.1 mm diameter Germanium Wedge Window with a thickness of 5m...
      3DOptix
    • GE-ww-12.7-2 12.7 mm Dia. Germanium Wedge Window; t ... - 3DOptix
      The window is sourced from Alkor Technologies, a reputable vendor in the optical industry. The GE-ww-12.7-2 is a Wedge Window, a t...
      3DOptix
    • GE-ww-25.4-4 25.4 mm Dia. Germanium Wedge Window; t ... - 3DOptix
      Germanium Wedge Window; t=4mm Uncoated. This is a Germanium Wedge Window, sourced from Alkor Technologies, a renowned vendor in th...
      3DOptix
    • Germanium Windows and Lenses for Thermography - TYDEX
      It corresponds to the value d(n)=3*10-4 over the window aperture. Window diameter = 50.8 mm, thickness = 5.0 mm. For several appli...
      TYDEX
    • Germanium Windows - Uncoated & AR Coated - UQG Optics
      Germanium Windows & Plates – Uncoated, AR/AR & AR/DLC Coated Germanium Windows with excellent transmission across 2-14 µm waveband...
      UQG Optics
    • Germanium (Ge) Windows - Edmund Optics
      The Knoop Hardness of germanium (780) is approximately twice that of magnesium fluoride, making it ideal for infrared applications...
      Edmund Optics
    • Germanium windows | DLC AR coated | thermal imaging - Knight Optical
      Germanium transmits over 45% between 2-14μm up to 45⁰C but transmission degrades slowly at 100⁰C then more rapidly above 200⁰C. Ex...
      Knight Optical
    • Germanium Wedge Windows - UM OPTICS
      Germanium wedge windows are a commonly used infrared optical material with high hardness, good thermal conductivity, and insoluble...
      www.umoptics.com
    • GE-ww-38.1-5 38.1 mm Dia. Germanium Wedge Window; t ... - 3DOptix
      Germanium Wedge Window; t=5mm Uncoated. This is the GE-ww-38.1-5, a 38.1 mm diameter Germanium Wedge Window with a thickness of 5m...
      3DOptix
    • GE-ww-12.7-2 12.7 mm Dia. Germanium Wedge Window; t ... - 3DOptix
      The window is sourced from Alkor Technologies, a reputable vendor in the optical industry. The GE-ww-12.7-2 is a Wedge Window, a t...
      3DOptix
    • GE-ww-25.4-4 25.4 mm Dia. Germanium Wedge Window; t ... - 3DOptix
      Germanium Wedge Window; t=4mm Uncoated. This is a Germanium Wedge Window, sourced from Alkor Technologies, a renowned vendor in th...
      3DOptix
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    My Ad Center

    Web results

    Germanium Wedged Windows


    Thorlabs
    https://www.thorlabs.com › germanium-wedged-windows
    Thorlabs
    https://www.thorlabs.com › germanium-wedged-windows
    Thorlabs offers Ø1/2" and Ø1" wedged germanium (Ge) windows that are uncoated or AR-coated for 7 - 12 µm. These wedged optics eliminate fringe patterns and can ...Read more
    Germanium Wedge Window from www.thorlabs.com

    Germanium Wedge Windows


    UM OPTICS
    https://www.umoptics.com › germanium-windows-wedge
    UM OPTICS
    https://www.umoptics.com › germanium-windows-wedge
    Germanium wedge windows are a commonly used infrared optical material with high hardness, good thermal conductivity, and insoluble in water.

    Thorlabs Wedged Window - WW90530


    MEETOPTICS
    https://www.meetoptics.com › ... › Wedged Windows
    MEETOPTICS
    https://www.meetoptics.com › ... › Wedged Windows
    Wedged Window ; Substrate: Germanium ; Surface Quality: 40-20 scratch-dig ; Thickness Tolerance: ±0.1 mm ; Wedge: 30' ; Wedge Tolerance: ±10'.Read more
    $300.00 · 30-day returns

    GERMANIUM WINDOW - Meller Optics - Over 100 Years of ...


    Meller Optics
    https://melleroptics.com › overrun-list-optics › germaniu...
    Meller Optics
    https://melleroptics.com › overrun-list-optics › germaniu...
    GERMANIUM WINDOW WEDGED 21.00mm DIA. X 2.00mm THK. Description: More info. SCD2510-02A. CONFIGURATION: DISC, PLANE-WEDGED. DIAMETER: 21.00mm +/- 0.025mmRead more

    Custom Germanium Wedge Window ...


    UNI Optics
    https://www.uni-optics.com › germanium-wedge-windo...
    UNI Optics
    https://www.uni-optics.com › germanium-wedge-windo...
    Germanium (Ge) is the preferred lens and window material for high performance infrared imaging systems in the 8–12 um wavelength band.Read more

    38.1mm Dia., 3mm Thick, 8-12μm BBAR Coated, ISP ...


    Edmund Optics
    https://www.edmundoptics.com › 381mm-dia-3mm-thi...
    Edmund Optics
    https://www.edmundoptics.com › 381mm-dia-3mm-thi...
    #24-573 - 38.1mm Dia., 3mm Thick, 8-12μm BBAR Coated, ISP Optics Germanium (Ge) Window | AR812-GE-W-38-3. No longer available at Edmund Optics®.Read more
    Germanium Wedge Window from www.edmundoptics.com
    People also ask
    What is a germanium window?
    A germanium optical windowis made of germanium and is opaque to UV and visible light, but has a wide transmission range in the infrared. Due to its high index of refraction (4.0 from 2 to 14m), it has minimal chromatic aberration and anti-reflection coating is used in it.

    The Uses and Applications of Germanium Windows - COE Optics


    COE Optics
    https://www.coeoptics.com › news_details › the-uses-and...
    COE Optics
    https://www.coeoptics.com › news_details › the-uses-and...
    What is the temperature range of germanium glass?
    Germanium transmits over 45% between 2-14μm up to 45⁰C but transmission degrades slowly at 100⁰C then more rapidly above 200⁰C. Exposure to higher temperatures can lead to catastrophic failure in the material so Germanium is unsuitable for use in these conditions.

    Germanium windows | DLC AR coated | thermal imaging - Knight Optical


    Knight Optical
    https://www.knightoptical.com › stock › ir-windows › ge...
    Knight Optical
    https://www.knightoptical.com › stock › ir-windows › ge...
    How is germanium glass made?
    Optical components using a germania-silica glass are made by a gel technique. Tetra pentyloxygermane and a silicon alkoxide are hydrolyzed to form a gel, which is subsequently dried. Optical components, including optical fibers and devices, can be made using glass prepared by this technique.

    US4477580A - Method for making germanium-silicate gel glass and ...


    Google Patents
    https://patents.google.com › patent
    Google Patents
    https://patents.google.com › patent
    Why is germanium so rare?
    Germanium ore is rarely found, with most germanium a byproduct of zinc production and coal fly ash. A silvery-white metal comparable in appearance to aluminium, gallium is similarly used as an important component in semiconductors, solid-state devices (such as transistors) and bulbs.Dec 30, 2024

    What Are Germanium and Gallium, and Why Are They So Expensive ...


    International Banker
    https://internationalbanker.com › brokerage › what-are-g...
    International Banker
    https://internationalbanker.com › brokerage › what-are-g...

    Web results

    Germanium wedge window - Sinoptix | Optical components


    Sinoptix
    https://sinoptix.eu › portfolio-item › germanium-wedge...
    Sinoptix
    https://sinoptix.eu › portfolio-item › germanium-wedge...
    Shape : Round window with 20° surface tilt. Aspect : For optical surfaces : Scratch & Dig : 60/40. Roughness : Rz:0.05. Optical treatment ...Read more

    Germanium Wedge Window


    HG Optronics.,INC.
    https://www.hgoptronics.com › germanium-wedge-win...
    HG Optronics.,INC.
    https://www.hgoptronics.com › germanium-wedge-win...
    Germanium (Ge) is the preferred lens and window material for high performance infrared imaging systems in the 8–12 um wavelength band.

    Germanium 25.4mm x 1mm Optically Polished


    Crystran
    https://www.crystran.com › ge-25-4mm-o-x-1mm-polis...
    Crystran
    https://www.crystran.com › ge-25-4mm-o-x-1mm-polis...
    Discover our high-quality Germanium Windows, ideal for infrared spectroscopy and thermal imaging. Buy now at Crystran.
    Germanium Wedge Window from www.crystran.com
    £93.50
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    • 10% OFF
      MSE PRO H-K9L Wedge Window with AR Coating, Round Shape. 10% OFF.
      MSE PRO H-K9L Wedge Window with AR Coating, Round Shape
      $208.95$234
      MSE Supplies
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      MSE PRO H-K9L Wedge Window with AR Coating, Round Shape
      $208.95$234
      MSE Supplies
    • T-WG90530 - Ø1/2" Germanium Broadband Precision Window, Uncoated.
      T-WG90530 - Ø1/2" Germanium Broadband Precision Window, Uncoated
      $178.00
      Fiber Optics For Sale Co.
      Next-day delivery $7
      T-WG90530 - Ø1/2" Germanium Broadband Precision Window, Uncoated
      $178.00
      Fiber Optics For Sale Co.
      Next-day delivery $7
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      Laser Optics Inc 105-60190 Germanium Window
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    • T-WG91050 - Ø1" Germanium Broadband Precision Window, Uncoated.
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      Fiber Optics For Sale Co.
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    Web results

    WW90530 0.5 in Dia. Germanium Wedged Window; t=3 mm ...


    3DOptix
    https://www.3doptix.com › optics › window › thorlabs
    3DOptix
    https://www.3doptix.com › optics › window › thorlabs
    The WW90530 is a 0.5 inch diameter Germanium Wedged Window, with a thickness of 3 mm and a wedge angle of 0.008726646259971648 radians. This window is sourced ...
    People also search for
    Germanium wedge window price
    Thorlabs Wedged Window
    Thorlabs ge windows
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    Germanium transmission

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