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Earlier mentioned price are generic specs for fabrication, distinct far better price can be offered and have to be reviewed case by scenario.
5µm. This leaves germanium as the top and only option for brutally tough IR applications. This is often why you will see germanium windows and lenses serving in destinations as inhospitable as outer Place, battlefields and in the midst of large-driven CO2 laser units. A lot more on this later.
Novotech has the capacity to conduct diamond turning, polishing, and custom production for all orders from prototype to creation quantities.
No h2o solubility- edge around salty windows for instance KBr and NaCl which are very hygroscopic.
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Germanium can also be employed thoroughly being a substrate for production of optical filters. Germanium handles The complete of your 8-14 micron thermal band and is Utilized in lens devices for thermal imaging. Germanium can be AR coated with Diamond making an incredibly tough entrance optic.
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Just like how seen light camera lenses undoubtedly are a good glass form, thermal digital camera lenses are solid Germanium. Equally as glass is transparent to seen gentle, Germanium is clear to the wavelength band of infrared radiation, which most thermal cameras check here use.
There are many specialized problems in producing germanium elements for infrared optical methods, like sustaining high optical top quality above an array of temperatures, minimizing unwelcome radial resistivity gradients, and decreasing the absorption of infrared radiation.
At Shanghai Optics we manufacture a wide variety of germanium lenses with many anti reflection coatings. Spherical plano-concave, p-convex, concave-convex and aspheric lenses are all accessible in numerous types of dimensions. We may also be ready to support Particular orders do you have to need a sizing, shape or AR coating.
Germanium and germanium oxide have an incredibly superior refractive index, meaning that for a few window apps anti-reflective coating is needed.
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Uncooked germanium product is very tough but can nevertheless correctly be machined and polished into optical elements: