Knight Optical's Sapphire Ball Lenses for Fibre Optics

26 Jul 2017

Knight Optical offer a range of Stock Sapphire Ball Lenses, for use within Fibre Optics, Signal Coupling and Barcode Scanners.

Sapphire (Al₂O₃) is one of the hardest minerals and optical materials available for use in the range from UV up to 5µm. Making it ideal as a protective window for camera systems.

The key feature of ball lenses is their short back focal length allowing for precision coupling where size or space is a limiting factor in the system. Ball lenses are typically used in pairs with one lens acting as a collimator for the second to focus the light back into the coupled fibre. Where a more compact solution is required a half-ball lens is typically more suitable.

We hold a large inventory of Sapphire Ball Lenses.

Stock sizes from 0.5 5mm to 10mm diameter.
Custom sizes available to quotation.
Half Ball lenses also available.

Typical specs:

Material: Sapphire
Diameter Tolerance: +/-2.5µm
Figure (sphericity): 1λ
Focal Length Tolerance: ± 0.2% (<10mm)

± 2.0% (10-1000mm)

± 5.0% (>1000mm)

Wavelength Range: 0.17 – 5.5µm
Surface Quality:

All our Sapphire Ball Lenses are fully inspected on their quality in our ISO 9001 certified, state-of-the-art Metrology laboratory, using our Trioptics Optispheric, and Starrett AV300. 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 Sapphire ball Lenses and superior service can improve your instrumentation and supply chain experience.

UK, Europe, Asia & RoW: E-Mail info@knightoptical.co.uk Tel +44 (0)1622 859444

USA & Canada: E-Mail usasales@knightoptical.com Tel +001 401-583-7846