Off-Axis Parabolic Mirrors (Paraboloids)

Off-Axis Parabolic Mirrors (Paraboloids)Unlike standard parabolic mirrors, Off-Axis Paraboloids (OAP) 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.

Optical Surfaces Limited are a UK based company supplying the world with optical components and instruments. We specialise in large optics, beam expanders, collimators and prototypes, plus custom systems and optics.

Over the last 50 years – Optical Surfaces Ltd has established itself as a leading international manufacturer of top quality, high precision optical components and systems. We have contributed to many major projects worldwide involved in areas such as:
• fundamental physics   • astronomy   • space   • defence and the environment

Off-axis Paraboloids
On-axis Paraboloids
Aspheric Lenses
Spherical Mirrors
Beam Splitters
Filters and Fibres
Reflective Collimators
Laser Beam Expanders
Mounts/Mounted Optics
Custom Systems & Optics
Latest News

Fast Focusing On-Axis Parabolic Mirrors

Optical Surfaces is a leading producer of fast focusing on-axis parabolic mirrors precisely manufactured to customer specifications and supplied with full surface quality test data. Supplying on-axis paraboloids to leading research groups around the world, Optical Surfaces heritage in this area dates back over 50 years to the production of large astronomical telescope optics, more than 1 metre (39.4 inches) in diameter for the Royal Greenwich Observatory. In comparison to an off-axis ...

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Fizeau Interferometer for Testing Very Large Diameter Flats

Fizeau Interferometer for Testing Very Large Diameter Flats

Optical Surfaces Ltd has developed a 600mm Fizeau interferometer enabling it to now offer quality testing of flats in a single aperture up to 600mm in diameter. This is a capability that only a few optical testing and manufacturing centres around the world possess. Housed in an ultra-stable testing environment, this interferometric set-up will allow direct qualification of larger flat mirrors up to 600mm diameter by testing them directly over their ...

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Precision Etalons Enable High Resolution, High Contrast Spectroscopy

Optical Surfaces Ltd. announces receipt of an order for precisely matched precision etalon pairs from The Table Stable Ltd (Mettmenstetten, Switzerland) for use as a key component in their ultra high resolution JRS series interferometers. Operating in a uniquely stable manufacturing environment – Optical Surfaces' skilled production team is able to routinely produce the 50mm diameter fused silica etalons pairs for Table Stable with matching accuracies of better than lambda /200. ...

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Optical Surfaces Delivers Key Components for Spaceborne Optical Systems

Optical Surfaces Ltd. has delivered a challenging 300mm diameter off-axis paraboloid and a mounted flat mirror to SIMERA Technology Group (Pty) Ltd - an engineering design and development company specialising in the development of UAV and small satellite optical payload systems. Drawing upon its highly experienced and skilled production team - Optical Surfaces manufactured the off-axis parabolic mirror with surface accuracy of better than lambda/15 P-V, surface quality of 20/10 scratch/dig ...

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