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Segmented Mirror

(a telescope mirror formed of array of smaller mirrors)

A Segmented Mirror is a Reflector Telescope mirror formed by aligning smaller mirrors (Optical Segmentation). Keck was a pioneer. Alignment must be maintained to a high degree of precision and Adaptive Alignment is typically performed under computer control. Example telescopes with segmented mirrors:

Non-segmented (Monolithic Mirror) examples:


Referenced by:
Colossus Telescope
European Extremely Large Telescope (E-ELT)
Extremely Large Telescope (ELT)
Giant Magellan Telescope (GMT)
Giant Segmented Mirror Telescope (GSMT)
Gran Telescopio Canarias (GTC)
Hobby-Eberly Telescope (HET)
Mirror Support Cell
Monolithic Mirror
Reflector Telescope
Thirty Meter Telescope (TMT)
William Herschel Telescope (WHT)