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


Knight Optical offer a range of custom slit apertures. Our ranges of custom slits are available in a range of forms and grades offering precise control of beam, shape and size with well defined sharp edges.

Both our custom standard grade laser drilled
and custom electroformed precision slit apertures are supplied in a range of slit widths and lengths, making them ideally suited to a range of laser applications where beam shaping is required or saturation of a detector needs to be limited.

Custom slit apertures are also used to determine a systems field of view and to limit the effect of aberrations. Whilst our standard range of stock slit apertures are widely used in general applications helping to limit saturation of detectors and the effects of aberrations, our high precision and high powered customised slit apertures offer increase performance and radiation dissipation for laser applications.

Custom slit apertures are available as unmounted foils or ridged mounts for seamless integration into your application. We are also able to supply in a range of alternative materials such as customised ceramic apertures with customised mounting options .

Knight Optical supply high quality custom slits 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 slits 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