Precision toroidal mirrors for spectroscopy and imaging

Optical Surfaces Ltd specialises in the production of high-performance toroidal mirrors, ideal for spectroscopic and imaging applications.

Toroidal mirrors feature an aspheric design, where the curvatures of horizontal and vertical axes differ. This unique structure enables toroidal mirrors to combine focusing and beam folding in a single element, making them particularly effective for systems requiring a small, focused spot. Their design enhances energy throughput, promotes compactness, and helps reduce overall costs. In addition, toroidal mirrors mitigate astigmatism, a common issue that arises when spherical mirrors are used off-axis.

With decades of expertise, Optical Surfaces Ltd manufactures toroidal mirrors using materials such as BK7, Zerodur, and fused silica, achieving surface accuracies as fine as λ/10 and surface quality of 10:5 scratch dig. The company's skilled technicians can produce mirrors in various shapes and sizes, with dimensions reaching up to 500 mm. A wide range of high reflectance coatings is also available to meet specific application needs.

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