Europe, UK, Asia & RoW: [email protected] +44 (0)1622 859444 | USA & Canada: [email protected] +1 401-583-7846

BREXIT UPDATE: Knight Optical will continue to provide quality assured service for all your optical requirements both custom & stock. We will handle all requirements caused by the new regulations.


Looking For a Custom Optical Solution? Enquire

Plastic Windows

Knight optical supply a range of custom plastic windows to meet a range of UV-Visible and NIR applications. Custom plastic windows are typically used for low cost instrument panel applications. Plastic marks and scratches easily so an anti-scratch coating is normally applied which helps prevent degrading of the surfaces. Typical custom plastic window products we supply are as follows:

Custom PMMA acrylic windows: Acrylic windows have excellent transmission properties though the Visible and NIR wavelengths. It has uniform thickness, minimal double image refraction and is available with anti-scratch coatings for improved performance. Large sheets over 1000mm square are available to manufacture custom diameters squares and rectangular apertures and CNC methods are available for bespoke custom designs. PMMA acrylic is available in 0.2, 0.3, 0.4, 0.5, 0.8, 1.0, 1.5, 2.0, 3.0, 4.0 and 5mm thk. Other custom thicknesses are available on request.

Custom anti-glare acrylic windows: the surfaces of acrylic windows are finely etched on one of the surfaces which create a very fine diffused finish preventing reflections of light in the visible and NIR wavelengths. Custom Anti-glare windows are used in typical applications to enhance lettering on displays and to sharpen images. Custom Anti-glare acrylic windows are available with anti-scratch coatings on for increased performance. Custom PMMA acrylic anti-glare windows are available in 0.2, 0.3, 0.4, 0.5, 0.8, 1.0, 1.5, 2.0, 3.0, 4.0 and 5mm thk. Other custom thicknesses are available on request.

Custom anti-reflective coated acrylic windows: Knight Optical supply a range of custom acrylic windows with multilayer antireflective coatings on one side of both sides. These custom AR coated acrylic windows have no double images reflections and are typically used in LCD displays, instrument panels and bar code scanners. These sheets are available in large sizes for custom diameters squares, rectangles etc. to be made from. Typical thicknesses available are 0.8, 1.0, 1.5, 2.0, 3.0, 4.0 and 5mm thk. Custom AR coated V coatings area available for your specific wavelength application.

Knight Optical supply high quality custom plastic windows made to your exact specification. Every component is individually tested by our highly skilled technicians in our state of art metrology lab to ensure all components meet our high quality standards.

Please contact our multilingual technical sales team and discover how Knight Optical’s high custom quality plastic acrylic windows and service can improve your instrumentation and supply chain experience.

Our 2021/2022 Catalogue

Inside Knight Optical’s catalogue you’ll find details of the industries we serve as well as the many other services we can offer. It also showcases hundreds of our most popular products, supported by useful technical information, to help you choose the right part for your application.
Click below to view our digital catalogue now.

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