Hubble is the design formula used for the original Hubble Space Telescope. Note that the original telescope was not manufactured to this design, which caused the problem. The Hubble telescope has become famous for many reasons, not the least of which is the well-known fabrication error that has now been compensated. The version included here is the original Ritchey-Chrétien design including two hyperbolic mirrors. The design itself is ideal, but it was fabricated in a way that produced about 6 waves of spherical aberration due to an improper conic constant on the primary mirror. You may wish to experiment to find the deviation in the conic constant that would cause such aberration, as well as ways to compensate for it. In setting up the system, a wavelength of 0.6328 was used, because that is the wavelength of the light used to test it. Note that surface 1 is needed to serve as a central obstruction.
*LENS DATA
Hubble space telescope
| SRF |
RADIUS |
THICKNESS |
APERTURE RADIUS |
GLASS |
SPE |
NOTE |
| 0 |
-- |
1.0000e+20 |
1.9199e+17 |
AIR |
|
|
| 1 |
-- |
4.9061e+03 |
1.2094e+03 SX |
AIR |
* |
|
| 2 |
-1.1040e+04 |
-4.9061e+03 P |
1.2000e+03 AX |
REFL_HATCH |
* |
|
| 3 |
-1.3580e+03 |
6.4059e+03 S |
150.000000 |
REFL_HATCH |
* |
|
| 4 |
-- |
-- |
110.578590 S |
|
|
|
*CONIC AND POLYNOMIAL ASPHERIC DATA
| SRF |
CC |
AD |
AE |
AF |
AG |
| 2 |
-1.002299 |
-- |
-- |
-- |
-- |
| 3 |
-1.496000 |
-- |
-- |
-- |
-- |