SN0308 14" f/4.8 (1" plate)



           OBSIDIAN OPTICS MIRROR TEST SHEET - 1/1/04

           Comments: SN0308 14" f/4.8 
   Optical diameter: 13.92
Radius of curvature: 134.63
                f/D:  4.84
   Diffraction disc: 0.000127434

	ZONE                1          2          3          4          5          6      
	h(x)              2.5600     3.8800     4.8500     5.6600     6.3700     6.9600
	h(m)              1.2800     3.2200     4.3650     5.2550     6.0150     6.6650
	hm**2/R           0.0122     0.0770     0.1415     0.2051     0.2687     0.3300
	hm/4f             0.0048     0.0120     0.0162     0.0195     0.0223     0.0248
	Diam1             0.0680     0.1200     0.1950     0.2570     0.3140     0.3900
	Diam2             0.0420     0.0940     0.1580     0.2290     0.2820     0.3590
	Diam12            0.0550     0.1070     0.1765     0.2430     0.2980     0.3745
	D12 -  0.0373     0.0177     0.0697     0.1392     0.2057     0.2607     0.3372
	Lamda c           0.0055    -0.0073    -0.0023     0.0006    -0.0080     0.0072
	Lamda f * 1e5       2.63      -8.74      -3.75       1.15     -17.94      17.94
	Lamda f / rho      0.207     -0.686     -0.295      0.090     -1.408      1.408
	u * 1E6            -0.39       1.30       0.56      -0.17       2.67      -2.67
	Wavefront           0.00       1.22       1.27       0.63       2.03       0.00
	

Maximum wavefront error = 1 / 10.6 wave at zone 5 (averaged both diameters)

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

Results for individual sets of readings:
	Reading Diam1: 1 / 10.5 lamda, Max Trans Abberation=1.36
	Reading Diam2: 1 / 10.8 lamda, Max Trans Abberation=1.45


 
 

© 2004 Obsidian Optics