Other than specified specialised employs in electronics, germanium right now is applied mostly in the optics sector simply because its Qualities make it ideal for optical methods including lasers, aim lenses for microscopes along with other scientific instrumentation and large-angle photographic lenses.
Our germanium lenses Have got a high refractive index—the best refractive index between readily available IR transmitters. Furthermore, it reveals negligible chromatic aberration resulting from small dispersion.
Germanium is likewise issue to thermal runaway. What This suggests is that the transmission will lower as temperature improves, as well as lens will become opaque. Because of this thermal runaway effect, germanium lenses must only be utilised at temperatures underneath one hundred°C.
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To see more details on Germanium Home windows from UQG Optics, or any of our optical Home windows contact us on 01223 420329 or e mail our gross sales team at [email protected]
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We provide precision cylinder lenses in round, rectangular or quadratic designs to meet your prerequisites. The optical factors are offered with substantial-reflection or antireflection coatings to the DUV, UV, VIS and IR spectral ranges. The special coating improves the cylinder lenses and would make them additional resistant. Details Sheet
Aspherical germanium lenses : created and employed for Improved optical Attributes and for purposes that will need bodyweight conserving. Germanium can be diamond turned into high surface area excellent aspheres.
Germanium can be a significant index materials which is utilized to manufacture Attenuated Full Reflection (ATR) prisms for spectroscopy. Its refractive index is such that Germanium can make a good natural fifty% beamsplitter with no have to have for coatings.
Germanium and germanium oxide have a very substantial refractive index, this means that for many window apps anti-reflective coating is needed.
Although you will get an improved, extra controlled cleaning and can be employed for stubborn stains, care must be taken to operate in the managed moisture-free ecosystem and we do not recommend this for normal end-buyers.
Raw germanium material is quite hard but can continue to successfully be machined and polished into optical parts: