OBSIDIAN OPTICS MIRROR TEST SHEET - 7/6/04

           Comments: SN0303b Jackson 12.5" f/4.4 
   Optical diameter: 12.45       Substrate:  Pyrex 7740
Radius of curvature: 109.19      Thickness:  1.55
                f/D:  4.39   Diffraction disc: 0.000115557

ZONE                1          2          3          4          5      
h(x)              2.5000     3.7700     4.7200     5.5400     6.2300
h(m)              1.2500     3.1350     4.2450     5.1300     5.8850
hm**2/R           0.0143     0.0900     0.1650     0.2410     0.3172
hm/4f             0.0057     0.0144     0.0194     0.0235     0.0269
Diam1             0.0910     0.1625     0.2395     0.3145     0.3900
Diam2             0.1185     0.1865     0.2670     0.3405     0.4170
Diam12            0.1047     0.1745     0.2532     0.3275     0.4035
D12 -  0.0866     0.0181     0.0879     0.1666     0.2409     0.3169
Lambda c          0.0038    -0.0021     0.0016    -0.0002    -0.0003
Lambda f * 1e5      2.18      -3.08       3.08      -0.36      -0.85
Lambda f / rho     0.189     -0.266      0.266     -0.031     -0.074
u * 1E6            -0.40       0.56      -0.56       0.07       0.16
Wavefront          -0.89      -0.04      -0.44      -0.24       0.00

Mirror wavefront error < 1/16th wave PV across both diameters

Polish, diffraction edge, figure of revolution, and smoothness all excellent.
	
Arithmetic wavefront error = 1 / 24.2 wave at zone 1 (average both diameters)

Results for individual diameters:  Calculated Strehl Diam1 = 0.998, Diam2 = 0.998
	Reading Diam1-1: 1 / 18.7 lambda, Max Trans Aberration=0.24
	Reading Diam1-2: 1 / 27.6 lambda, Max Trans Aberration=0.28 
	Reading Diam2-1: 1 / 16.9 lambda, Max Trans Aberration=0.43
	Reading Diam2-2: 1 / 21.8 lambda, Max Trans Aberration=0.36