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


Looking For a Custom Optical Solution? Enquire

Bar Gratings

Knight Optical’s bar gratings are fashioned from a glass substrate with a chromium pattern of equally spaced bars and spaces. Bar gratings are commonly used for optical testing purposed is metrology such as ronchi testing, where a bar grating is used with a diffuser and light source to test the quality of optics.

Our stock range of Bar Gratings are 50mm square substrates with ruling over the whole area and can be custom edged to meet your requirements.

Apart from our custom bar grating solutions we also offer reticule solutions, a range of custom microstructures, custom calibration charts and custom resolution charts.

Typical processes we offer are vacuum metal deposition, etching and electroforming and photographic techniques. Anti-reflective coatings can be applied to bar gratings for increased performance. Our range of bar grating processes can be applied to plastic, glass, IR crystal, UV materials such as calcium fluoride and UV grade fused silica , ceramics and metal foils. Our custom bar grating solutions can be supplied as one-off though to large production runs with competitive master generation tooling costs, enabling custom designs to become production reality without hurting your budget.

Knight Optical supply high quality custom bar gratings made to your exact custom specification. Every component is individually tested by our highly skilled technicians in our state of art metrology lab using our Starrett AV300 non contact dimensional imaging devise to ensure all components meet our high quality standards.

Contact our multilingual technical sales team and discover how Knight Optical’s high quality custom bar gratings can improve your product and supply chain experience.

Our 2022/2023 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.

view our catalogue