Award-winning Nigeriasat-2 satellite features key components made by Optical Surfaces
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Optics from Optical Surfaces have helped Surrey Satellite Technology win the 2012 Sir Arthur Clarke award for ‘Best Space Activity — Industry/Project’ for the Nigeriasat-2 Earth observation satellite. Nigeriasat-2 was built for the Nigerian Space Agency (NASRDA).
The 300kg satellite incorporates a high-performance camera with key optical components manufactured by Optical Surfaces.
It has been able to capture 2.5m-resolution images, enabling detailed analyses of ground structures, aircraft and vehicles.
Nigeriasat-2 carries two imagers: a 2.5m-resolution panchromatic imager and a 5m-resolution multispectral imager with a swath width of 20km.
Key benefits of product application
- Optical Surfaces’ skilled craftsmen produced the 385mm light-weighted primary mirror and other optics in the Cassegrain camera, with a surface accuracy of lambda/20p-v; these optics have enabled the satellite to take high-resolution images.
- The company is claimed to be one of Europe’s leading manufacturers of high-precision optics for satellite deployment and astronomical research.
- Its manufacturing workshops and test facilities are ISO 9001-2008 approved.
In addition to supplying a range of standard specification off-axis paraboloids, Optical Surfaces offers a consultative design and manufacture service to produce custom off-axis paraboloids to fulfil the most demanding and specialist applications.
Optical Surfaces is offering high-precision toroidal mirrors (toroids) that can be made to customers’ exact specifications. Toroidal mirrors are widely used for correction of aberration in a range of applications served by spectroscopic instruments, monochromators and imaging devices that require pinpoint focusing.
Optical Surfaces has introduced small-diameter (25–60mm) reflective beam expanders, which are suitable for space-restricted applications such as high-power lasers and multi-wavelength interferometry. Incorporating high-precision off-axis mirrors, the reflective beam expanders are said to provide an unobstructed output and highly efficient transmission.
Optical Surfaces has been selected by a spectrophotometer manufacturer to supply ultra-high-precision matched beamsplitter/compensator optics for the interferometer that lies at the heart of its high-resolution FTIR system.
Optical Surfaces has introduced the OS-Z range of mirror mounts, developed to support off-axis paraboloid, spherical and flat mirrors in a way that overcomes a number of constraints imposed by general-purpose mounts.