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Product Announcement

Knight Opticals Front-Surface (FS) λ/10 Mirrors for Spectrometers

07 Nov 2019

Knight Optical is a trusted name for on-spec, premium-quality optical components, such as Front-Surface (FS) λ/10 Mirrors, for high-precision spectrometer applications. Our stock and custom-made FS λ/10 Mirrors are offered in a range of material options for such applications; these include BK7 (or equivalent), Zerodur, Quartz, UV Fused Silica; plus many more substrate options.  We can also provide FS λ/10 Mirrors on Convex, Concave and Plano surfaces – as well as large flat or spherical options.

 Manufactured from low-expansion glass for optimum stability and to maintain λ/10 flatness, our F/S Mirrors are capable of delivering high-quality imaging thanks to a higher surface flatness. What's more, they can also be coated to ensure maximum performance with your specified wavelength. Our coatings for FS λ/10 Mirrors include:

 Enhanced aluminium (94%R) for visible applications

  • 99.9% dielectric for laser use in visible applications
  • UV aluminium for ultraviolet (UV) applications down to 180nm
  • 98.5% dielectric for laser use in near-infrared (NIR) applications
  • Ion-plated silver for near-infrared (NIR) 2000nm applications
  • Protected gold for 750nm to far-infrared (FIR) applications.

 Typical Specs (Stock):

Material: Soda-lime float glass

Diameter: +0 /-0.2 mm

Length/Width:  ±0.1mm

Thickness: +0.1 /-0.2mm

Surface Quality: <40/20 Scratch/Dig

Flatness: λ/10 over 90% of mirror aperture (commercial polish on rear).

 First-Class Quality 

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 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 Front-Surface (FS) λ/10 Mirrors, contact a member of our technical sales team today. 

 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 

 View our QA and Metrology information

Knight Optical Ltd
Roebuck Business Park
ME17 1AB
United Kingdom
Tel: 44 (0)1622 859444
Fax: 44 (0)1622 859 555
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