Sentences with phrase «wavefront error»
The left side of the plot shows the corresponding RMS wavefront error for a coronagraph using a 64 × 64 element deformable mirror.
http://www.hdstvision.org/ Not exact matches
A key innovation was the computer control system which, as the telescope moved, could sense errors in the wavefront moving through it and correct the mirror shape for the effects of gravity, wind and temperature minute - by - minute — a technique known as active optics.
We have also integrated the LLOWFS in the visible high - order control loop of SCExAO, which in closed - loop operation has validated the correction of the non-common path pointing errors between the infrared science channel and the visible wavefront sensing channel with pointing residual of 0.23 mas on sky.
One of the limitations with the direct detection of exoplanets, either with ground - or space - based coronagraphs, is pointing errors and other low - order wavefront aberrations.