Array of 1 cm 2 piezoelectric cells to adjust the image obtained from a large aperture x-ray space telescope. The sample is a patterned Pt/ Pb(Zr,Ti)O 3 /Pt/Ti on a glass substrate. It is difficult to see at this scale, but traces run from each cell to the edge of the substrate to facilitate electrical connections.The x-ray reflecting surface is on the opposite side from the piezoelectric actuators