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segmented mirror


segmented mirror of the Hobby-Eberly Telescope
A large mirror construction technique in which many smaller elements are built and then actively controlled to conform to the shape of the required large mirror. The Hobby-Eberly Telescope, for example, uses a segmented mirror, as shown in the illustration. The same technique will be used in the construction of the world's largest optical telescope, the Giant Magellan Telescope.


Related categories

   • TELESCOPE EQUIPMENT AND TECHNIQUES
   • OPTICS AND OPTICAL PHENOMENA


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