SN0303a 12.5" f/4.4 (1.5" Pyrex)
        		OBSIDIAN OPTICS MIRROR TEST SHEET - 7/8/04

           Comments: SN0303a Jackson 12.5" f/4.4 
   Optical diameter: 12.42 	Substrate:  Pyrex 7740
Radius of curvature: 109.25 	Thickness:  1.54
                f/D:  4.40    Diffraction disc: 0.0001159

ZONE                1          2          3          4          5          6          7      
h(x)              2.1100     3.2000     4.0000     4.6600     5.2500     5.7700     6.2100
h(m)              1.0550     2.6550     3.6000     4.3300     4.9550     5.5100     5.9900
hm**2/R           0.0102     0.0645     0.1186     0.1716     0.2247     0.2779     0.3284
hm/4f             0.0048     0.0122     0.0165     0.0198     0.0227     0.0252     0.0274
Diam1             0.1600     0.2125     0.2655     0.3195     0.3735     0.4260     0.4805
Diam2             0.1455     0.1995     0.2525     0.3075     0.3600     0.4125     0.4670
Diam12            0.1527     0.2060     0.2590     0.3135     0.3668     0.4193     0.4738
D12 -  0.1434     0.0093     0.0626     0.1156     0.1701     0.2233     0.2758     0.3303
Lambda c         -0.0009    -0.0019    -0.0031    -0.0015    -0.0014    -0.0021     0.0019
Lambda f * 1e5     -0.42      -2.36      -5.03      -3.05      -3.19      -5.22       5.22
Lambda f / rho    -0.036     -0.204     -0.434     -0.263     -0.275     -0.450      0.450
u * 1E6             0.08       0.43       0.92       0.56       0.58       0.96      -0.96
Wavefront           0.00       0.13       0.53       0.57       0.57       0.73       0.00

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

Polish, diffraction edge, figure of revolution, and smoothness all excellent.

Arithmetic wavefront error = 1 / 29.6 wave at zone 6 (average both diameters)

Results for individual diameters:  Calculated Strehl Diam1 = 0.997, Diam2 = 0.999
	Reading Diam1-1: 1 / 26.9 lambda, Max Trans Aberration=0.51
	Reading Diam1-2: 1 / 19.7 lambda, Max Trans Aberration=0.55
	Reading Diam2-1: 1 / 29.5 lambda, Max Trans Aberration=0.46
	Reading Diam2-2: 1 / 33.5 lambda, Max Trans Aberration=0.51


 
 

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