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Looking For a Custom Optical Solution? Enquire

Fresnel Rhomb Retarders

Our custom achromatic retarders can be made specifically to achieve the result you require. For example, our Fresnel rhombs change the polarisation of light waves to be circularly polarised. The beauty of the Fresnel rhomb is that the same rhomb setup can be employed for use at many different wavelengths. We also provide custom achromatic retarders in plate form which again work by altering the polarisation of the light wave travelling through it.

Both single and double Fresnel rhombs are available in a custom form, whilst we also can make available achromatic plate retarders from varying materials, covering different wavebands and in different mounts.

Knight Optical are capable of providing custom achromatic retarders in many forms and from substrates such as BK7 or equivalent, Fused Silica and Calcium Fluoride, to name a few.

Knight Optical supply high quality custom achromatic retarders made to our exact specification. Every component is individually tested in our state-of-the-art metrology laboratory by our highly skilled technicians to ensure all components meet our high quality standards.

Contact our multilingual technical sales team and discover how Knight Optical’s high quality custom achromatic retarders 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