Cooling Animation
This page animates the 3D surface of Dale Eason's mirror as it cools
after one point on the edge is heated by placing a hand on it for one
minute. The animation was constructed from ten interferograms in two
sets. The sets were taken one minute apart, and five seconds elapsed
between each frame in a set. To make the animation, the Zernike
representations were interpolated and smoothed term by term, as shown in
the graph, below. All Zernike terms, except for piston, tilt, and
defocus were used. This has undoubtably left in residual coma or
astigmatism from test stand effects and interferometer alignment, but I
had to leave them in, because some of the interesting data from the
cooling was in those terms. The box has a height of 1/2 wave on the
wavefront, so you can see that the raised edge due to heating is quite
high.
Steve Koehler
26 January 2005
steve_koehler@securecomputing.com