SN0222 10" f/5 (1.29" plate)
OBSIDIAN OPTICS MIRROR TEST SHEET - 3/9/04
Comments: SN0222 Atkinson 10" f/5
Optical diameter: 9.92
Radius of curvature: 99.5
f/D: 5.02
Diffraction disc: 0.000132158
ZONE 1 2 3 4 5
h(x) 1.9700 3.0100 3.7800 4.4100 4.9600
h(m) 0.9850 2.4900 3.3950 4.0950 4.6850
hm**2/R 0.0098 0.0623 0.1158 0.1685 0.2206
hm/4f 0.0049 0.0125 0.0171 0.0206 0.0235
Diam1 0.0190 0.0700 0.1200 0.1750 0.2280
Diam2 0.0280 0.0760 0.1290 0.1820 0.2370
Diam12 0.0235 0.0730 0.1245 0.1785 0.2325
D12 - 0.0105 0.0130 0.0625 0.1140 0.1680 0.2220
Lamda c 0.0032 0.0001 -0.0019 -0.0006 0.0014
Lamda f * 1e5 1.59 0.18 -3.21 -1.18 3.21
Lamda f / rho 0.120 0.014 -0.243 -0.089 0.243
u * 1E6 -0.32 -0.04 0.64 0.24 -0.65
Wavefront -0.62 -0.66 -0.16 0.00 -0.35
Reference parabola: y = -0.00105908 * x**2 + 0
passing through ( 0.00, 0.00) and ( 4.41, 0.00)
Maximum wavefront error <= 1/20th wave across both diameters
Polish, diffraction edge, figure of revolution all excellent; smoothness very fine.
Arithmetic wavefront error = 1 / 32.9 wave at zone 2 (average both diameters)
Results for individual diameters:
Reading Diam1: 1 / 29.0 lambda, Max Trans Aberration=0.24
Reading Diam2: 1 / 28.6 lambda, Max Trans Aberration=0.24
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