Fig. 2.
Iris-AO MEMs segmented mirror set up on the HiCAT testbed and used for the experiment. It is composed of 37 hexagonal segments that can each be controlled in piston, tip, and tilt. The gaps between the segments measure between 10 and 12 μm (Iris-AO spreadsheet) and the full segmented mirror has an inscribed circle diameter of 7 mm (Soummer et al. 2018).
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