CASSEGRAINIAN MIRROR BLANKS
(APPROXIMATE MEASUREMENTS)
Description
PRIMARY MIRROR |
SECONDARY MIRROR |
OTHER |
PRODUCT CODE |
DIA. |
THK |
HOLE |
CC RAD |
DIA |
CX RAD |
B |
D |
EFL |
F/D |
PRODUCT CODE WITH TOOLING |
PRODUCT CODE WITHOUT TOOLING |
8.00" |
1.375" |
1.5" |
40.00" |
2.55" |
14.68" |
6.500" |
13.52" |
56" |
7.00 |
CG800.70 | CG800.70NT |
10.00" |
1.875" |
2.0" |
50.00" |
2.44" |
24.83" |
8.120" |
16.90" |
70" |
7.00 |
CG1000.70 | CG1000.70NT |
12.00" |
2.125" |
3.0" |
60.00" |
2.90" |
29.79" |
9.750" |
20.25" |
84" |
7.00 |
CG1200.70 | CG1200.70NT |
16.00" |
2.620" |
3.0" |
80.00" |
3.90" |
39.72" |
13.000" |
27.00" |
112" |
7.00 |
CG1600.70 | CG1600.70NT |
8.00" |
1.375" |
1.5" |
64.00" |
2.00" |
26.53" |
6.500" |
24.30" |
128" |
16.00 |
CG800.16 | CG800.16NT |
10.00" |
1.875" |
2.0" |
80.00" |
2.44" |
25.66" |
8.125" |
25.66" |
160" |
16.00 |
CG1000.16 | CG1000.16NT |
12.00" |
2.125" |
2.5" |
96.00" |
2.90" |
30.79" |
9.750" |
36.45" |
192" |
16.00 |
CG1200.16 | CG1200.16NT |
16.00" |
2.620" |
3.0" |
128.00 |
3.90" |
41.06" |
13.000" |
13.00" |
256" |
16.00 |
CG1600.16 | CG1600.16NT |
* Other
The Cassegrainian mirror blanks have a started hole molded into the blank which comes within a ¼ to ½ of an inch of the designated mirror surface. This eliminates the need to core drill through the blank and then inserting a plug for surface stability prior to polishing. All the blanks are fine annealed Pyrex 7740. Precision annealed blanks can be supplied upon request.The primary is a full parabola and the secondary is a hyperbola.
The designs have been contributed by Max Bray, Phoenix, Arizona.
*Other sizes and shapes can be made to meet the fabricator's specifications. Please submit a drawing with the necessary dimensional requirements clearly stated to facilitate our quotation process.
