SN0322 16" f/4.5 (1.38" Pyrex)

		OBSIDIAN OPTICS MIRROR TEST SHEET - 2/6/04

           Comments: SN0322 Richberg 16" f/4.5
   Optical diameter: 15.95		
Radius of curvature: 144.06
                f/D:  4.52		
   Diffraction disc: 0.000119005

   ZONE                1          2          3          4          5          6          7     
   h(x)              2.6900     4.0900     5.1100     5.9700     6.7100     7.3900     7.9800
   h(m)              1.3450     3.3900     4.6000     5.5400     6.3400     7.0500     7.6850
   hm**2/R           0.0126     0.0798     0.1469     0.2130     0.2790     0.3450     0.4100
   hm/4f             0.0047     0.0118     0.0160     0.0192     0.0220     0.0245     0.0267
   Diam1             0.0615     0.1230     0.1910     0.2610     0.3240     0.3915     0.4585
   Diam2             0.0305     0.0965     0.1665     0.2315     0.2965     0.3610     0.4320
   Diam12            0.0460     0.1098     0.1788     0.2463     0.3103     0.3762     0.4453
   D12 -  0.0333     0.0127     0.0764     0.1454     0.2129     0.2769     0.3429     0.4119
   Lamda c           0.0001    -0.0034    -0.0015    -0.0001    -0.0021    -0.0021     0.0019
   Lamda f * 1e5       0.04      -3.97      -2.37      -0.28      -4.66      -5.17     5.17
   Lamda f / rho      0.004     -0.333     -0.199     -0.024     -0.392     -0.434     0.434
   u * 1E6            -0.01       0.55       0.33       0.04       0.65       0.72     -0.72
   Wavefront           0.00       0.49       0.54       0.29       0.49       0.69     0.00
		Reference parabola: y = 0.0298306 * x**2 + -0.232084
		passing through (  2.69,  0.00) and (  7.98,  0.00)

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

   Polish, smoothness, and figure of revolution all excellent; diffraction edge fine.
	
   Arithmetic wavefront error = 1 / 31.1 wave at zone 6 (average of both diameters)

	Results for averaged readings across diameters:
	Diam1: 1 / 21.6 lambda, Max Trans Aberration=0.37
	Diam2: 1 / 26.5 lambda, Max Trans Aberration=0.65

 
 

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