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▪ CONTENTS
APPENDIX
1
2 3
4: Telescope system specifications
D=diameter f=f.l./D K=conic R=surface
radius S=separation M=medium A=air
RI=best
image curvature A4/A6=aspheric
coefficients T=tilt (deg.)
|
NEWTONIAN
|
D |
f/ |
R1 |
K1 |
S1
|
M1
|
R2
|
K2 |
T2 |
S2 |
M2
|
RI |
|
1.
Sphere |
6" |
8.15 |
97.8 |
0 |
42 |
A |
∞ |
0 |
~45 |
6.9 |
A |
-48.9 |
|
2.
Paraboloid |
6" |
8.15 |
97.8
|
-1 |
42 |
A |
∞ |
0 |
~45 |
6.9 |
A |
-48.9 |
|
TWO-MIRROR |
Dmm
|
f/ |
R1 |
K1
|
S1 |
M1 |
R2
|
K2 |
S2 |
M2 |
R3 |
K3 |
S3 |
M3 |
RI |
|
1.
Classical
Cassegrain |
400 |
15 |
-2400 |
-1 |
-960 |
A |
-600 |
-2.25 |
1200 |
A |
- |
- |
- |
- |
-256 |
|
2.
Classical
Gregory |
400 |
15 |
-2400 |
-1 |
-1600 |
A |
666.7 |
-0.444 |
2000.6 |
A |
- |
- |
- |
- |
390 |
|
3.
Aplanatic
Cassegrain |
400 |
8 |
-2400 |
-1.135 |
-807.3 |
A |
-1256.7 |
-6.55
|
1047.23 |
A |
- |
- |
- |
- |
-412 |
|
4.
Aplanatic
Gregorian |
400 |
8 |
-1200 |
-0.9828 |
-800 |
A |
337 |
-0.5 |
1069.84 |
A |
- |
- |
- |
- |
182 |
|
5.
Aplanatic
Gregorian |
400 |
8 |
-2400 |
-0.8825 |
-2060 |
A |
1251 |
-0.27 |
2293.95 |
A |
- |
- |
- |
- |
780 |
|
6.
Dall-Kirkham
|
400 |
8 |
-2400 |
-0.5972 |
-791 |
A |
-1309 |
0 |
1090.9 |
A |
- |
- |
- |
- |
-690 |
|
7.
Schwarzschild aplanat |
200 |
3 |
-2666 |
-8.63 |
-756 |
A |
951 |
2.5 |
261.7 |
A |
- |
- |
- |
- |
∞ |
|
8.
Couder
anastigmatic aplanat |
200 |
3 |
-4000 |
-15.8 |
-1200 |
A |
694 |
-0.53 |
243 |
A |
- |
- |
- |
- |
296 |
|
7.
3R Gregorian
|
400 |
3 |
-1474 |
-0.428 |
-1069 |
A |
1044 |
-6.55 |
1069 |
A |
-1474 |
-0.428
|
1069 |
A |
-215 |
|
w/flattener:
primary-to-1st-lens-surface -1166mm, R1=55,
S1=-6(BK7),
R2=55,
S2=-0.5(air),
R3=0,
S3=-2.5(BK7),
R4=77 |
| #7 is
2-mirror 3-reflection system |
|
THREE-MIRROR |
Dmm |
f/ |
R1 |
K1
|
S1
|
M1
|
R2 |
K2 |
S2 |
M2 |
R3
|
K3
|
S3 |
M3 |
RI |
|
1.
Paul-Baker
(curved field) |
300 |
3 |
-1800 |
-1 |
-625 |
A |
-550 |
0 |
550 |
A |
-550 |
0 |
-275 |
A |
-900 |
|
2.
Paul-Baker
(flat field) |
300 |
3 |
-1250 |
-1 |
-434 |
A |
-381.94 |
-0.6651 |
550 |
A |
-550 |
0 |
-275 |
A |
∞ |
|
3.
FAA1
|
300 |
3 |
-2000 |
-0.95
|
-1088.2 |
A |
-284 |
0 |
223.8 |
A |
-331 |
0 |
-408.52 |
A |
∞ |
|
4.
FA |
300 |
3.9 |
-2520 |
-1 |
-1370.9 |
A |
-362.9 |
0 |
284.8 |
A |
-423.9 |
0 |
-529 |
A |
∞ |
|
5.
FAA2
|
304 |
3 |
-1189 |
-0.806 |
-519.5 |
A |
-206.5 |
0 |
700 |
A |
-250 |
-0.4631 |
176.93 |
A |
∞ |
|
6.
Cassegrain-Gregorian, 3A*
|
300 |
4.25 |
-1800 |
0
|
-825 |
A |
380 |
0 |
340 |
A |
-380 |
-0.396 |
-565.16 |
A |
333 |
|
7.
Cassegrain-Gregorian, 3AA* |
400 |
10.6 |
-2400 |
-0.727 |
-900 |
A |
-2400 |
0 |
720 |
A |
-465 |
-0.576 |
-850.29 |
A |
-237 |
|
*folded;
uses small flat in the focal zone of the primary |
|
TILTED |
D |
f/ |
R1 |
K1 |
T1
|
S1 |
M1 |
R2 |
K2 |
T2 |
S2 |
M2 |
R3 |
K3 |
T3 |
S3 |
M3 |
RI |
TI |
|
1.
Kutter
|
110mm |
24.7 |
-3240 |
0 |
-2.65 |
-965
|
A |
-3240 |
0 |
6.65 |
1116.6 |
A |
- |
- |
-- |
- |
- |
∞ |
11 |
|
1.
Stevick |
8" |
11.85 |
188.1 |
-1 |
-3.1 |
-55.6
|
A |
-76.89 |
0 |
5.35 |
76.89 |
A |
-76.89 |
0 |
2.26 |
-30.71 |
A |
-88.6 |
8.97 |
|
NOTE: Tilt angles are for OSLO set to
DT/BEN for all four mirrors and DT for the image; flat
mirror in the Stevick-Paul is not included |
|
REFRACTOR |
Dmm |
f/ |
R1 |
S1 |
M1 |
R2 |
S2 |
M2 |
R3 |
S3 |
M3 |
R4 |
S4 |
M4 |
RI |
|
1.
Fraunhofer doublet*
|
100 |
15 |
911.25 |
13.7 |
BK7 |
-532 |
0 |
A |
-538.9 |
10 |
F2 |
-2214 |
1487.9 |
A |
-558 |
|
1.
Apo doublet*
|
100 |
10 |
478.75 |
18.52 |
S-FPL52 |
-209.9 |
3.44 |
A |
-209.6 |
10 |
ZKN7 |
-1838.7 |
972.34 |
A |
-343 |
|
*source:
ATMOS |
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