Glass Lenses Manufacturer – Germanium Lens(Ge lens) for Infrared Applications – Wavelength
Glass Lenses Manufacturer – Germanium Lens(Ge lens) for Infrared Applications – Wavelength
Glass Lenses Manufacturer – 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:
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Using a complete scientific high quality management program, superior high quality and superior faith, we acquire great reputation and occupied this industry for Glass Lenses Manufacturer – Germanium Lens(Ge lens) for Infrared Applications – Wavelength , The product will supply to all over the world, such as: Algeria, Indonesia, Melbourne, "Good quality, Good service " is always our tenet and credo. We take every effort to control the quality, package, labels etc and our QC will check every detail during producing and before shipment. We are willing to establish long business relationship with those who seek the high quality products and good service. We have set up a wide sales network across European countries, North of America, South of America, Middle East, Africa, East Asia countries.Please contact us now, you will find our professional experience and high quality grades will contribute to your business.
By Yannick Vergoz from Mexico - 2018.05.22 12:13
It is really lucky to meet such a good supplier, this is our most satisfied cooperation, I think we will work again!
By Julie from Chicago - 2018.12.25 12:43
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