Off-Axis Paraboloids Enhance Laser Power Density

Enhance Laser Power DensityOff-axis parabolic mirrors can be a useful tool in optical design. OAPs combine the achromatic and diffraction limited imaging properties of a parabolic mirror with the ability to deviate the light path off-axis, which is useful for most imaging systems. OAP’s offer the ability to focus collimated light without introducing spherical aberration. Continue…

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
Filters and Fibres
Reflective Collimators
Laser Beam Expanders
Mounts/Mounted Optics
Custom Systems & Optics
Latest News
Durable coated mirrors for high power femtosecond lasers

Durable Mirrors for High Power Lasers

Optical Surfaces Ltd. is a specialist producer of extremely durable, high performance coated mirrors, up to 600 mm in diameter, for use with high power femtosecond lasers. Employing the latest dielectric coating technology, these high-power laser mirrors provide minimum pulse distortion and the maximum usable bandwidth. When used with high-power femtosecond lasers operating at 750 to 850 nm, Optical Surfaces mirrors are designed for use at power densities exceeding 1 J/cm2 ...

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Mosquito 2D flight patterns

Off-Axis Parabolic Mirrors Assist Accurate 3D Flight Tracking

Optical Surfaces Ltd has been selected by the Optical Engineering Group at the University of Warwick (UK) School of Engineering to supply key focusing optics to enable accurate 3D tracking and analysis of mosquito flight behaviour. The UK Engineering and Physical Sciences Research Council (EPSRC) funded research project at the University of Warwick will utilise large field-of-view digital holography for accurate 3D tracking of mosquito flight in an elongated flight chamber. ...

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Affordable, High Performance Beam Collimators

Optical Surfaces Ltd. announce a new series of high-performance beam collimators designed for Modulation Transfer Function (MTF) testing of optical systems. Benefiting from a lightweight design and new assembly technique - the LW-series of beam collimators uniquely combine high stability, high performance and short delivery time all at a market competitive price. LW-series beam collimators incorporate a low expansion off-axis parabolic mirror, manufactured to better than lambda/10 p-v surface accuracy. The optics ...

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CAD model of ESO's Extremely Large Telescope (ELT) - Courtesy of ESO.

Speciality Prisms for Cryogenic Measurements of Refractive Index for ESO ELT's Spectrograph - HARMONI

Optical Surfaces Ltd has received an order to supply the University of Oxford, UK with 3 speciality glass prisms for a study that will enable defining key components in the state-of-the-art HARMONI spectrometer being developed for ESO's Extremely Large Telescope (ELT). The ELT, a flagship project of the European Southern Observatory (ESO), will be the largest ground-based optical telescope ever built. Located in Chile, with a primary mirror of 39m diameter, ...

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