IR Optical Protective Windows AR/DLC coating @8 14um Germanium Windows for Infrared Camera
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- Supplier: Wuhan Especial Optic Inc.
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Product Overview
Description
Product Description
Ge Windows Germanium (Ge) is the preferred lens and window material for high performance infrared imaging systems in the 8–12 μm 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 μm - 12 μm 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.
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. Application as window, lens, beam splitter, ATR prism or filter in spectrometers and in thermal imaging.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% beam splitter without the need for coatings.
Please feel free to reacg out for more questions and free samples.
Chemical Formula | Ge |
Crystal Form | Monocrystal, orientation <111>, N-type |
Crystal Class | Cubic |
Resistivity, Ohm*cm | 5-40 |
Lattice Constant, Å | 5.66 |
Molecular Weight | 72.60 |
Density, g/cm3 at 300 K | 5.33 |
Dielectric Constant for 9.37 x 109 Hz at 300 K | 16.6 |
Melting Temperature, K | 1210 |
Thermal Conductivity, W/(m K) at 293 K | 59 |
Thermal Expansion, 1/K at 298 K | 6.1 x 10-6 |
Specific Heat, cal/(g K) at 273 K-373 K | 0.074 |
Debye Temperature, K | 370 |
Bandgap, eV | 0.67 |
Solubility in water | None |
Knoop Hardness, kg/mm2 | 800 |
Mohs Hardness | 6.3 |
Young's Modulus, GPa | 102.66 |
Shear Modulus, GPa | 67.04 |
Bulk Modulus, GPa | 77.86 |
Poisson's Ratio | 0.278 |
Our Company
Wuhan Especial Optic established in 2012, compliance with ISO 9001.
WHEO is very good at developing and processing kinds of infrared optical components at ultra high precision, ultra thin, very large, ultra small and customization. Like 0.5mm thickness CaF2 window, 300mm diameter Germanium and ZnSe window. Our featured products include: Optical Protective Window (AR BBAR coating), High Reflection Mirrors (Metalic and Dielectric coating), Optical Lens (Aspheric Lens, Achromatic Lens, Cylindrical lens, Ball Lens, Powell Lens, Collimator Lens), Optical Filters (UV pass, IR pass, narrow bandpass, notch filter), Optical Prism, Galvo Mirror, Polarization rotators.
WHEO is very good at developing and processing kinds of infrared optical components at ultra high precision, ultra thin, very large, ultra small and customization. Like 0.5mm thickness CaF2 window, 300mm diameter Germanium and ZnSe window. Our featured products include: Optical Protective Window (AR BBAR coating), High Reflection Mirrors (Metalic and Dielectric coating), Optical Lens (Aspheric Lens, Achromatic Lens, Cylindrical lens, Ball Lens, Powell Lens, Collimator Lens), Optical Filters (UV pass, IR pass, narrow bandpass, notch filter), Optical Prism, Galvo Mirror, Polarization rotators.
We can custom all these optical components strictly as per your requirements. For instance, surface quality, flatness, tolerance and so on.
In addition, we have various kinds of products in stock. If you need samples, please write to us at sales@wheo.cn for free sample.
Our products
Dielectric coating Mirror
Aluminum coating mirrors
Gold coating mirror
Optical Filters
Optical Prisms
Galvo Mirrors
Our Service
a: Dimesion size : 5-300mm , thickness up to customer requirements
b: Many material could be choosed, like BK7, Fused Silica, Sapphire, MgF2, CaF2, Ge, Si, Znse, ZnS and so on.
c: AR HR DLC coating or as your request
For more please visit our website: www.wheo.cn
Packing & Delivery
Packing Details: First layer Tissue paper, then Protective film or Capacitor paper, Pearl cotton, Cardboard box.
Delivery Details: 7 days for stock.
3-4 weeks for custom-made products for sample.
in common, 4 weeks for mass production
FAQ
Are you factory or trader?
We're factory, engaged in optics manufacturing for over 10 years.
How to pay?
We usually draft Trade Assurance Order on Alibaba, you can pay by the most convenient way which also protect your rights.
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.
How to ensure the safety of payment?
Wuhan Especial Optic is the gold supplier and supports Alibaba Trade Assurance. Payment<=5000USD, 100% in advance. Payment>5000USD, 50% T/T in advance, balance before shippment.
Can I customize the products based on my need?
Sure, we can customize all optical components based on your uique needs.
How do you ship goods?
Typically FedEx, UPS, DHL, TNT, EMS or upon request.
Contact us
Wuhan Especial Optic Inc.
Contacts: David Liu
Tel: 86-027-87504830
WhatsApp&Skype: +86 18622556450
Email: David(at)wheo.cn
Website: www.wheo.cn
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