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Re: ATM Help needed with Figure 4.5
Hi Malcolm:
>From your post I entered your data into Figure45. Below is the output of the
program using the <F8> Print function. Please review it for accuracy. If
the zone centers, KE readings and moving light source are correct then you
have a badly overcorrected mirror.
Questions:
Does the light source move as you move the KE? You stated such in your post,
but I thought I'd ask again for completeness. If it does move when you move
the KE, then you should use the "Moving" entry in Figure.
How are you taking and entering the KE measurements? You should be reading
the KE position directly in millimeters and entering these numbers. Don't
multiply or divide by anything, just enter the actual KE position.
For instructions on how to use the program, please see:
http://members.aol.com/aplanatic/figure45.htm
Dave Rowe
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Malcolm's Mirror
There are 9 zones
The units are millimeters
The light source is moving
The mirror radius of curvature = 4766.000
The mirror diameter = 496.000
The desired conic deformation constant = -1.000
Measurement Data:
Zone Xeff Y
1 57.000 2.410
2 100.000 3.520
3 131.000 5.240
4 154.000 6.280
5 175.000 7.660
6 194.000 8.940
7 210.000 10.110
8 227.000 10.660
9 238.000 13.500
Mirror Analysis:
Weighted RMS error = 1/1.055
Strehl ratio = 0.050
Encircled energy ratio = 0.044
Peak to valley wavefront error = 1/0.302
Volume of glass remaining = 122.179 mm^3
Maximum transverse error = 68.390
Surface Error Profile:
Zone Height
Radius(%) Error(um)
5 0.040
10 0.066
15 0.109
20 0.167
25 0.238
30 0.323
35 0.419
40 0.521
45 0.622
50 0.710
55 0.782
60 0.844
65 0.892
70 0.909
75 0.892
80 0.835
85 0.734
90 0.619
95 0.431
100 0.000
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