Our aspheric lenses have a more sophisticated entrance. The curvature little by little modifications as you progress from the middle of the lens out to the edge. Our aspheric Ge lenses are most frequently utilized to do away with spherical aberration in an optical program.
Our germanium lenses Have got a higher refractive index—the very best refractive index among readily available IR transmitters. In addition, it displays negligible chromatic aberration as a consequence of lower dispersion.
It's also value noting that germanium is fairly far more brittle that silicon and for that reason must be cope with with treatment throughout machining.
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Jenoptik manufactures hybrid elements in optical content for infrared purposes. They are perfect for infrared aim lenses and programs, as well as for impression capture, concentrate on detection As well as in infrared digicam know-how. You could Choose between concave, convex, airplane, spherical and aspherical surfaces. Data Sheet
They will also be Utilized in focusing applications, and also have widespread use in numerous fields, from science to business to defense. We suggest these lenses be oriented so the flat side check here faces the specified focal airplane.
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When not in use, we advise storing your germanium Home windows wrapped in lens tissue with humidity down below thirty% and in between 15 and 25ºC. Though germanium is very difficult things, these are generally The perfect conditions that could lengthen the lifetime within your window.
We offer precision cylinder lenses in round, rectangular or quadratic shapes to satisfy your necessities. The optical components can be found with substantial-reflection or antireflection coatings for the DUV, UV, VIS and IR spectral ranges. The Specific coating boosts the cylinder lenses and helps make them far more resistant. Facts Sheet
Interestingly, due to its very similar crystal structure to Diamond might be coated using a DLC layer (Diamond Like Carbon) which on top of decreasing the reflection on it’s area, adds a diamond potent protecting layer. Ultimately Germanium isn't clear while in the visible that may be practical to deal with IR gentle.
Germanium is often a high index material that is certainly utilized to manufacture Attenuated Complete Reflection (ATR) prisms for spectroscopy. Its refractive index is this kind of that Germanium would make a successful pure fifty% beamsplitter without the will need for coatings.
Coatings from Jenoptik assist you to guidebook beams in the focused fashion. They filter distinct wavelengths, mirror optics or redirect them and minimize reflection if required. We offer the next:
UQG Optics best-sellers like Germanium Windows are available coated and uncoated in a variety of diameters and thicknesses.
Germanium (Ge) is really a shiny, tough aspect which has a Knoop Hardness of 780kg/mm2 rendering it, together with its far much better sister sapphire, the default prospect for applications in which the natural environment is probably going to put a beating on the material.