Knight Optical (USA)

(001)401-583-7846 https://www.knightoptical.com

Request Information

Diamond Turned Aspheric Lenses for Thermal Imagingc

Knight Optical can supply you with a custom made Diamond turned aspheric lenses for use within Thermal Imaging Cameras.

Thermal Imaging Cameras work similarly to traditional visible camera systems; while traditional cameras form images using visible light; thermal cameras form images using infrared radiation; operating in wavelengths as long as 14μm.

Spherical aberration occurs in common singlet lenses, which results in an image that appears distorted, aspheric lenses correct spherical aberration. An aspheric lens surface is designed non-spherical, which allows a single component lens to collimate or focus highly divergent rays, potentially replacing a multi-lens system. This in turn provides the camera system with a better image quality.

Knight Optical offers diamond turned aspherics from a range of infrared materials including Germanium (Ge), Calcium Fluoride (CaF₂), Zinc Sulphide (ZnS), Zinc Selenide (ZnSe), Aluminium (Al) and chalcogenide glasses like AMTIR (Ge33As12Se55 ).

Typical specs:

Material: Germanium, ZnSe, Caf2, Silicon, Zinc Selenide (For LWIR)
Diameter: Up to 200mm dia 0, -0.02mm
Thickness: /- 0.2mm
Flatness: < 1/2 wave over 90% aperture
Surface Quality: < 40-20 scratch/dig
Parallelism: 5 arcmin
Coating: AR/DLC (3-5 micron, 7-14 micron, 10-12 micron)

Our Aspheric lenses are checked for quality in our state-of-the-art Metrology laboratory using equipment from Trioptics, Varian and Starret allowing 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 Diamond Turned Aspherics 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

What’s new

  • 2011273 new spotlight logo

    Knight Optical’s renewal of certification in ISO 9001:2015

    News | 5 Dec 2017

    Knight Optical is pleased to announce that we have achieved the renewal of our certification in ISO 9001:2015 (from the 2008 certification) Quality Management, via a UKAS accredited certification body.

  • 2011273 new spotlight logo

    Rod and cone lenses

    News | 28 Nov 2017

    Rod lenses are a variant of cylindrical lenses used to focus incident light into a line. The outside faces of the lens are typically ground & outside diameter polished. These lenses are often used for generating line images from circular laser beams.

  • 2011273 new spotlight logo

    Diamond Turned Aspheric Lenses for Thermal Imagingc

    News | 28 Nov 2017

    Knight Optical can supply you with a custom made Diamond turned aspheric lenses for use within

  • 2011273 new spotlight logo

    Dichroic colour filters for scientific instrumentation.

    News | 28 Nov 2017

    Dichroic filters have a hard dielectric coating and are designed to offer high transmission over a specific wavelength while reflecting all other wavelengths.

  • new spotlight logo

    Moulded Optics for Light Sensors

    Products | 7 Nov 2017

    Moulded optics covers a wide range of different optical components and uses such as Fresnel Lenses for magnification or light diffusion as well as for use in light sensors.

Search all our content