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.
Optical Surfaces produces ultra-smooth parabolic, ellipsoidal, spherical and toroidal mirrors for demanding applications.
Optical Surfaces manufactures high-quality custom prisms to customer-supplied specifications in quantities ranging from prototypes through batch runs to production quantities. These prisms are used in applications including image rotation, inversion, redirection and dispersing light into its constituent colours.
Optical Surfaces has produced a 12-page document entitled ‘Practical guide to surface quality’ — the second in a series of practical guides for optics users. The guide has been written to enable scientists and engineers to better understand an optics quoted surface quality as surface imperfections are typically the most misunderstood, misinterpreted and ambiguous of all optical specifications.
Optical Surfaces is offering a range of fully enclosed pre-aligned reflective collimators for applications including MTF testing, optical resolution testing, star simulation, MRTD testing and bore-sight alignment and inspection.
Tube collimators from Optical Surfaces simplify the alignment of off-axis paraboloids. Applications include the resolution tests of optics, bore sighting for alignment and inspection of customer systems and star simulation.