SN0217 10" f/5.6 (1.34" Pyrex)

      	OBSIDIAN OPTICS MIRROR TEST SHEET - 1/21/04

           Comments: SN0217 Coleman 10" f/5.6
   Optical diameter: 9.96
Radius of curvature: 110.88
                f/D:  5.57
   Diffraction disc: 0.000146682

	ZONE                1          2          3          4          5      
	h(x)              1.9700     3.0100     3.7800     4.4100     4.9800
	h(m)              0.9850     2.4900     3.3950     4.0950     4.6950
	hm**2/R           0.0088     0.0559     0.1040     0.1512     0.1988
	hm/4f             0.0044     0.0112     0.0153     0.0185     0.0212
	Diam1             0.0525     0.0940     0.1405     0.1905     0.2390
	Diam2             0.0645     0.1115     0.1580     0.2105     0.2570
	Diam12            0.0585     0.1028     0.1492     0.2005     0.2480
	D12 -  0.0476     0.0109     0.0552     0.1017     0.1529     0.2004
	Lamda c           0.0022    -0.0007    -0.0023     0.0017     0.0016
	Lamda f * 1e5       0.97      -0.82      -3.46       3.14       3.47
	Lamda f / rho      0.066     -0.056     -0.236      0.214      0.236
	u * 1E6            -0.18       0.15       0.62      -0.57      -0.63
	Wavefront           0.00       0.17       0.67       0.34       0.00

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

Polish, diffraction edge, surface smoothness, figure of revolution all excellent

Arithmetic wavefront error = 1 / 32.1 wave at zone 3 (averaged both diameters)

Results for individual sets of readings:
	Reading Diam1-1: 1 / 25.9 lambda, Max Trans Aberration=0.25
	Reading Diam1-2: 1 / 22.4 lambda, Max Trans Aberration=0.22
	Reading Diam2-1: 1 / 21.5 lambda, Max Trans Aberration=0.38
	Reading Diam2-2: 1 / 27.1 lambda, Max Trans Aberration=0.25
 
 

© 2004 Obsidian Optics