Knight Optical’s Stock and Custom-Made Sapphire Spherical Lenses
02 Dec 2019
Sapphire crystal (Al2O3) is a sought-after substrate for a range of high-precision applications; for example, for aerospace and aeronautical vehicles and high-powered laser applications, such as Er: YAG lasers. With a high transmission from 150nm up to around 5µm, it's an outstanding choice for ultraviolet (UV), visible and infrared (IR) applications.
With excellent mechanical strength, scratch-resistance and hardness as well as an optimal thermal and chemical resistance, Sapphire is a perfect choice for lens-based applications. Furthermore, its durability means it repels attacks from everyday processing environments, such as those featuring hydrofluoric acid.
Here at Knight Optical, we supply a range of stock and custom-made Sapphire Spherical Lenses in Plano-Convex, Biconvex and Concave varieties. Not only do we offer customised solutions within our Sapphire Spherical Lens range but we also provide tailored optical coatings specific to your project's requirements – such as Anti-Reflective (AR) coatings to increase efficiency in UV and IR applications – as well as various grades including Random, C-Cut, Z-Cut and Fluorescence-Free options.
Material: Sapphire (random grade)
Diameter: +0 / -0.10mm
Centring accuracy: < 5 arc min
Focal length: ± 2.0%
Centre thickness: ± 0.25mm
Coating options: Extended broadband multilayer antireflective coating <0.5%@450-900nm
Quality is the driving force behind Knight Optical, and to ensure you profit from high-precision optics, we take the utmost care to ensure every component accurately meets your specifications. Offering unparalleled service, Knight Optical undertakes a full inspection of your optics from our ISO 9001:2015-certified, state-of-the-art Metrology Laboratory, followed by a meticulous visual examination by our dedicated QA department.
To discover how we can enhance your supply chain experience and to learn more about our stock and custom-made IR Sapphire Spherical Lenses, contact a member of our technical sales team today.
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