Parameters off/3 Schmidt-Cassegrains with Spherical Mirrors
ri
-0.10
0.00
0.10
rj
-0.10
0.00
0.10
Concentric Design (a =
k p m
0.3187
0.3333
0.3483
Aplj
k
0.3618
0.3765
0.3913
0.6593
0.6667
0.6742
1.936
2.000
2.069
inatic Design {p = 0
G m
2.198
2.214
2.231
1.615
1.657
1.700
:2)
.95;
Q2
0.6457
0.6250
0.6041
)
Q2
0.6388
0.6163
0.5943
m^Q2
4.69
5.00
5.35
m^Qj
2.69
2.80
2.92
It is evident from Eq. (8.1.14) that it is necessary to have ( near one to keep the
astigmatism small. If, for example, we choose p = 0.95, m = 1.7, and F = 3,
then AAS is approximately 1 arc-sec when 0 = 1.5°.
Table 8.7 give ...
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