SN0219 12.5" f/5 (1.58" plate)


		
               OBSIDIAN OPTICS MIRROR TEST SHEET - 11/30/03

           Comments: SN0219 Kandul 12.5" f/5
   Optical diameter: 12.4
Radius of curvature: 123.75
                f/D:  4.99
   Diffraction disc: 0.000131494

	ZONE                1          2          3          4          5      
	h(x)              2.5000     3.7700     4.7200     5.5400     6.2000
	h(m)              1.2500     3.1350     4.2450     5.1300     5.8700
	hm**2/R           0.0126     0.0794     0.1456     0.2127     0.2784
	hm/4f             0.0051     0.0127     0.0172     0.0207     0.0237
	Diam1             0.0460     0.1060     0.1730     0.2450     0.3080
	Diam2             0.0700     0.1360     0.2020     0.2720     0.3340
	Diam12            0.0580     0.1210     0.1875     0.2585     0.3210
	D12 -  0.0440     0.0140     0.0770     0.1435     0.2145     0.2770
	Lamda c           0.0013    -0.0025    -0.0022     0.0018    -0.0015
	Lamda f * 1e5       0.67      -3.13      -3.71       3.71      -3.53
	Lamda f / rho      0.051     -0.238     -0.282      0.282     -0.268
	u * 1E6            -0.11       0.51       0.60      -0.60       0.57
	Wavefront           0.00       0.41       0.74       0.00       0.15
	
Maximum wavefront error = 1 / 29.2 wave at zone 3 (averaged)

Mirror wavefront error <= 1/20th wave across both diameters

Polish, diffraction edge, figure of revolution excellent; smoothness very good

Results for individual sets of readings:
	Reading Diam1: 1 / 20.4 lamda, Max Trans Abberation=0.35
	Reading Diam2: 1 / 41.6 lamda, Max Trans Abberation=0.32


 
 

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