Re: [ATM] Interferometric analysis of a mirror edge heated by handfor 1 minute

[Dale Eason <atmpob@yahoo.com>]

Sorry, somehow the links got the wrong type slash in
them.  I have corrected them here I hope.

Dale

I thought you might like to see the results of warming
the edge of a 18 x 2 Pyrex mirror with my hand and
then taking interferograms and analyzing them. I
placed my palm on the upper right edge.  You can see
how it cause the mirror surface to expand at that
location.

3D wire frame image
http://home.comcast.net/~doeason/hand_heat.gif

The mirror was 69 deg F and I placed the palm of my
hand on the edge for 1 minute.  

It took about 5 minutes to take all the
interferrograms.  Then the results were averaged
together.

Color 2D contour map with Zernike terms.
http://home.comcast.net/~doeason/contour_map_hand_heated_edge.gif


A profile right to left through the diagonal showing
surface error in nanometers. 
http://home.comcast.net/~doeason/profile_hand_heat.jpg

Dale Eason


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