Glass Lens Cover Products – Germanium Lens(Ge lens) for Infrared Applications – Wavelength

Glass Lens Cover Products – Germanium Lens(Ge lens) for Infrared Applications – Wavelength


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Glass Lens Cover Products – Germanium Lens(Ge lens) for Infrared Applications – Wavelength Detail:

Product information:

Germanium lens is optical lens made of germanium. Germanium (Ge) is a crystalline material with the highest refractive index (4.002@11µm) of the commonly used infrared materials. It also has a comparatively low dispersion, high hardness and density. Due to its broad transmission range (over 45% in the 2-12 micron band) and opaque to the UV and visible light, Germanium is well suited for IR application such as thermal imaging systems, infrared field applications and precision analytic instruments.

Germanium is also subject to thermal runaway. With temperature growing, the absorption increases very rapidly. Because of this thermal runaway effect, germanium lens is not suitable to be used at temperatures above 100°C.

Wavelength Infrared can manufacture a variety shape of germanium lens with plane, concave, convex, aspheric and diffractive surfaces. Germanium is most popular for systems operating in the 3-5 or 8-12µm spectral region, with anti-reflective coatings (AR coating), the average transmission could be brought up to 97.5-98.5% depend on the bandwidth of the coating. We can also apply diamond-like carbon coating (DLC coating) or high durable coating (HD coating) on lens surface to provide extra protection against scratch and impact.

Wavelength infrared manufactures quality custom spherical and aspheric germanium lens. They can either focus or diverge incoming light beam to meet specific requirement of the infrared system. The application could be thermal imaging, thermograph, beam collimating, spectrum analysis and etc.

Specifications:

Material Germanium(Ge)
Diameter 10mm-300mm
Shape Spherical or Aspheric
Focal length <+/-1%
Decentration <1’
Surface figure <λ/4 @ 632.8nm (Spherical surface)
Surface irregularity < 0.5 micron (Aspheric surface)
Clear Aperture >90%
Coating AR,DLC or HD

Remarks:

1.DLC/AR or HD/AR coatings are available upon request.

2.Customization available for this product to suit your technical requirements. Let us know your required specifications.


Product detail pictures:

Glass Lens Cover Products –  Germanium Lens(Ge lens) for Infrared Applications – Wavelength detail pictures

Glass Lens Cover Products –  Germanium Lens(Ge lens) for Infrared Applications – Wavelength detail pictures


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We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate in our success for Glass Lens Cover Products – Germanium Lens(Ge lens) for Infrared Applications – Wavelength , The product will supply to all over the world, such as: United States, Surabaya, Dubai, We will supply much better products with diversified designs and professional services. At the same time, welcome OEM, ODM orders, invite friends at home and abroad together common development and achieve win-win, integrity innovation, and expand business opportunities! If you have any question or need more information please feel free to contact us. We are looking forward to receiving your enquiries soon.
  • This supplier's raw material quality is stable and reliable, has always been in accordance with the requirements of our company to provide the goods that quality meet our requirements.
    5 Stars By Eartha from Cologne - 2018.04.25 16:46
    High production efficiency and good product quality, fast delivery and completed after-sale protection, a right choice, a best choice.
    5 Stars By Atalanta from Malta - 2018.09.23 17:37
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