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  • N-BK7 Windows and H-K9L Windows

    Made from BK7 material, which has transparent range from 330-2100nm. The refractive index is 1.5168 at 587.6nm. The BK7 window has good performance over visible and near IR spectrum for most application.

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  • IR Windows Magnesium Fluoride MgF2 Windows

    MgF2 windows are used in the UV, visible and IR ranges, with approximately 94% transmission from 200 - 1000 nm, and approximately 95% transmission from 1-6µm

  • IR Windows Calcium fluoride CaF2 Windows

    CaF2 has transparent range from 170-7800nm. The refractive index is 1.399 at 5000nm. 1. Low absorption coefficient 2. High damage threshold, 3. Low Dispersion (with an Abbe Number of 95) 4. Low fluorescence 5. Excellent water, chemical, and heat resistance

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Germanium Window

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IR Windows Germanium Windows

Germanium Windows are applied for IR Wavelength
1. 3 - 5μm for mid-infrared applications
2. 3 - 12μm for broadband multispectral applications
3. 8 - 12μm for thermal imaging applications

  • product orgin:

    China
  • shipping port:

    Fuzhou China
  • payment:

    T/T Payment, Western Union
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features
IR Windows Germanium Windows

Germanium is the preferred lens and window material for high performance infrared imaging systems in the 8-12 um wavelength band. Its high refractive index makes Ge ideal for low power imaging systems because of minimum surface curvature. Chromatic aberration is small, often eliminating the need for correction.

Germanium is most widely used for lenses and windows in IR systems operating in the 2 um - 12 um range. Its transmission is very temperature sensitive, becoming opaque near 100°C. Environment does not cause problems because Germanium is inert, mechanically rugged, and fairly hard.

Germanium is a high index material that is used to manufacture Attenuated Total reflection (ATR) prisms for spectroscopy. Its refractive index is such that germanium makes an effective natural 50% beamsplitter without the need for coatings. It is also used extensively as a substrate for production of optical filters. Germanium covers the whole of the 8-14 micron thermal band and is used in lens systems for thermal imaging.

It can be AR coated with diamond producing an extremely tough front optic(DLC Coating).
Application as Germanium window, Germanium lens, Germanium beamsplitter, ATR prism or filter in spectrometers and in thermal imaging.

Germanium Windows SPECIFICATION:

Material: Germanium(Ge)
Dimension Tolerance: +0.0, -0.1mm
Thickness Tolerance: ± 0.1mm
Surface quality: 60/40
Clear Aperture: >85%
Flatness: λper 25mm
Parallelism: 3' 
Bevel: <0.25mm X 45°
Coating: AR Coated & DLC Coated


Typical Sizes:
Round Shape: Φ5.0; Φ10.0 ; Φ12.7; Φ15.0; Φ20.0;
Diameter(mm): Φ25.4; Φ30.0; Φ38.1; Φ50.8; Φ76.2
Square Shape: 5.0x5.0 ; 10.0x10.0 ; 15.0x15.0 ;
WxH(mm) 20.0x20.0; 25.0x25.0; 50.0x50.0
Thickness(mm):
0.5; 1.0; 1.5; 2.0; 3.0;
4.0; 5.0; 6.0; 8.0; 10.0

DLC Coated Germanium WindowsAR Coated Germanium Windows


WTS,China optical germanium windows manufacturer,provide our customers with the superior quality optics products and precision Laser Optics products ,serves a global markets including Laser, Electronics, Telecommunication,Thermal Imaging,etc.
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  • BK7 Windows N-BK7 Windows and H-K9L Windows

    Made from BK7 material, which has transparent range from 330-2100nm. The refractive index is 1.5168 at 587.6nm. The BK7 window has good performance over visible and near IR spectrum for most application.

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