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Optical Surfaces Ltd.

Godstone Road
United Kingdom

Tel: +44 208 6686126

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Versatile Mounting System for Off-Axis Parabolic Mirrors

Versatile Mounting System for Off-Axis Parabolic Mirrors

Product News Tuesday, November 30, 2021: Optical Surfaces Ltd.

Optical Surfaces Ltd has launched a new low profile mounting system that provides a highly stable platform for smaller diameter (up to 75mm) parallel or wedge backed off-axis parabolic (OAP) mirrors.

Designed to facilitate rapid and simple mounting onto an optical table or other support, Optical Surfaces is now able to supply smaller diameter OAP mirrors pre-aligned in the new high quality stress-free mount.

Benefiting from a uniquely stable manufacturing environment, and a highly skilled team of engineers and craftsmen, Optical Surfaces has established itself as a world leader for the production of high precision off-axis parabolic mirrors. The company is able to routinely produce OAP mirrors with surface accuracy to lambda/20 (peak-to-valley) depending upon off-axis angles. Using proprietary polishing techniques Optical Surfaces can, depending on the surface accuracy required, achieve the natural limit to the off-axis angle of around 25-30 degrees and surface micro-roughness of less than 1 nm. A range of coatings is available for standard and custom components from metallic with or without protective overcoat to multilayer dielectrics and ultra-hard coatings.

Unlike standard parabolic mirrors, off-axis parabolic mirrors direct and focus incident collimated light at a specific angle, allowing unrestricted access to the focal point as well as reducing the size and minimising the weight of an optical design.

For further information on mounted, smaller diameter off-axis parabolic mirrors please contact Optical Surfaces Ltd on +44-208-668-6126 or

Optical Surfaces’ ISO 9001-2015 approved manufacturing workshops and test facilities are deep underground in a series of tunnels excavated in solid chalk. This provides an environment where temperature is naturally thermally stable and vibration is extremely low. With such stable conditions testing of high precision optical components and mounted mirrors becomes quantifiable and reliable. In addition to these natural advantages, Optical Surfaces has invested in an extensive range of test equipment and have developed methods to ensure accurate and reliable testing.
Image Caption:  Each small diameter mounted off-axis parabolic mirror comes in a protective carrying case   


Worldwide HQ

Optical Surfaces Ltd.
Godstone Road
Surrey CR8 5AA

tel. +44-208-668-6126