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Knight Optical(UK) Ltd - - +44 (0)1622 859444

Knight Optical's Range ofStock & Custom IR Sapphire Spherical Lenses

15 April 2018 at 18:30

Sapphire crystal (Al2O3) is an excellent substrate for a range of rugged applications.

It has high transmission from 150nm up to around 5µm therefore ideal for UV, Visible and IR applications. Sapphire lenses have excellent mechanical strength and hardness. With sapphire having superb thermal and chemical resistance and being scratch resistant, sapphire is a perfect choice for lens applications. Sapphire is inert and resistant to attack from most processing environments, such as hydrofluoric acid.

We supply a range of sapphire lens solutions and offer plano convex, biconvex and concave sapphire lens solutions. Our sapphire lenses can also be antireflective coated to increase efficiency in UV and IR applications. Sapphire grades we offer are Random, C-Cut, Z-Cut and fluorescence free sapphire.

Sapphire lenses can be found on probes that burrow deep under the earth’s surface and on aerospace and aeronautical vehicles where they are subject to impact by high speed debris. The scratch resistance of sapphire ensures a long life of durability for optical components.

Sapphire has a melting point over 2000°C with a high thermal conductivity makes it suitable for use in extremely hot environments such as furnaces, and high power laser applications, such as Er:YAG lasers.

Sapphire lenses are rare in the field of optical components, as most manufacturers only supply custom orders due to the high cost of sapphire. Knight Optical offers a range of stock sapphire lenses for your applications, and can also supply custom solutions to your individual specification. Every component is individually tested by our highly skilled technicians in our state of the art metrology lab to ensure your requirements are met.

Material:                           Sapphire (Random grade)
Diameter:                         +0 / -0.10mm
Centring accuracy:         < 5 arc min
Focal length:                   ± 2.0%
Centre thickness:           ± 0.25mm
Surface quality:             <60-40 scratch dig

see also
Random cut sapphire windows
C-Cut sapphire windows
UV fused silica planoconvex lenses
UV fused silica biconvex lenses

Coating options: Extended broadband multilayer antireflective coating <0.5%@450-900nm

All our Sapphire Spherical Lenses are fully inspected on their quality in our ISO 9001 certified, state-of-the-art Metrology laboratory. This allows us to work to the highest QA standards and meet the tolerance specifications on these precision components.

Contact our technical sales team to discover how Knight Optical’s high quality Germanium Windows and superior service can improve your instrumentation and supply chain experience.

UK, Europe, Asia & RoW: E-Mail Tel +44 (0)1622 859444

USA & Canada: E-Mail Tel +001 401-583-7846

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Our Multi-Lingual Sales Team are here to help with your requirments:

UK +44 (0)1622 859444
UK +44 (0)1622 850614
UK +44 (0)1622 851078
+1 401 583 7846

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