SN0338 15.5" f/5.2 (0.9" plate)
        		OBSIDIAN OPTICS MIRROR TEST SHEET - 6/3/04

  Comments: SN0338 15.5" f/5.2 
   Optical diameter: 15.38		Radius of curvature: 161
                f/D:  5.23    Diffraction disc: 0.000137928

ZONE                1          2          3          4          5          6          7    
h(x)              2.6900     4.0900     5.1100     5.9700     6.7100     7.3900     7.6900
h(m)              1.3450     3.3900     4.6000     5.5400     6.3400     7.0500     7.5400
hm**2/R           0.0112     0.0714     0.1314     0.1906     0.2497     0.3087     0.3531
hm/4f             0.0042     0.0105     0.0143     0.0172     0.0197     0.0219     0.0234
Diam1             0.0620     0.1150     0.1745     0.2375     0.3000     0.3645     0.4015
Diam2            -0.0097     0.0465     0.1085     0.1695     0.2308     0.2957     0.3377
Diam12            0.0261     0.0808     0.1415     0.2035     0.2654     0.3301     0.3696
D12 -  0.0169     0.0092     0.0638     0.1246     0.1866     0.2484     0.3132     0.3527
Lambda c         -0.0020    -0.0076    -0.0069    -0.0041    -0.0012     0.0045    -0.0004
Lambda f * 1e5     -0.85      -7.96      -9.81      -7.00      -2.41       9.81      -1.00
Lambda f / rho    -0.062     -0.577     -0.711     -0.507     -0.174      0.711     -0.072
u * 1E6            0.11       0.99       1.22       0.87       0.30      -1.22       0.12
Wavefront          0.00       0.87       1.61       1.84       1.55       0.21       0.00

Rated wavefront error < 1/10th wave PV across both diameters	

Polish, diffraction edge excellent; figure of revolution, smoothness fine.

Arithmetic wavefront error = 1 / 11.7 wave at zone 4 (average both diameters)

Results for individual diameters:
	Reading Diam1-1: 1 / 10.6 lambda, Max Trans Aberration=0.80
	Reading Diam1-2: 1 / 11.9 lambda, Max Trans Aberration=0.80
	Reading Diam2-1: 1 / 11.6 lambda, Max Trans Aberration=0.65
	Reading Diam2-2: 1 / 11.2 lambda, Max Trans Aberration=0.70


 
 

© 2004 Obsidian Optics