Spherical Primary form of a 2-mirror Cassegrain telescope

§ 3.2.6.3(d)

S (suffix)

Pertaining to a laterally decentered 2-mirror telescope treated as a Schiefspiegler

Eq. (3.352)

Symbol |
Meaning |
Where defined |

Si, S2 (suffix) |
Pertaining to third, fifth order spherical aberration for the Strehl Intensity Ratio |
Eq. (3.471) |

spri |
Distance of the entrance pupil from the first surface |
Eq. (3.25) |

Spl |
Stop shift of an aspheric plate relative to the primary |
Eq. (3.219) |

Spri |
Quantity calculated for the secondary as though it were a primary in a Schiefspiegler |
Eq. (3.344) |

s, t |
Spatial frequency of the object or image function in the n directions (MTF) |
Eq. (3.485) |

sol (suffix) |
Pertaining to a solid Schmidt |
§ 3.6.4.1 |

T (suffix) |
Pertaining to wavefront tilt for the Strehl Intensity Ratio |
Eq. (3.471) |

TC, 0 (suffix) |
Pertaining to a 2-mirror telescope of general or SP form with zero lateral (translation) decenter-ing coma |
Eq. (3.386), Eq. (3.389) |

t, s, m |
Tangential, sagittal and mean astigmatic surfaces, foci or sections |
Fig. 3.20, Fig. 3.21 |

tot (suffix) |
Pertaining to the total aberration (coma) defining neutral points (decenter) |
Eq. (3.377) |

U, U' |
Angles of finite rays to the axis |
Fig. 3.2, Eq. (3.83) |

U (Q') |
The complex amplitude at Q' (diffraction theory) |
Eq. (3.434) |

5u'p |
Angular aberration referred to the principal plane |
§ 3.1 |

A (u) |
Aplanatic parameter (see surface number v) |
§ 3.2.2, Eq. (3.19) |

Symbol |
Meaning |
Where defined |

Su'y |
Normalized diffraction angle (kqym) in the y-direction |
Eq. (3.435), Eq. (3.436) |

U, v |
Normalized ("optical") coordinates of Q referred to the principal ray (diffraction theory) |
§ 3.10.5 |

Va, Vß |
Typical orthogonal polynomials of a set (Zernike polynomials) |
Eq. (3.426) |

Was this article helpful? ## Telescopes MasteryThrough this ebook, you are going to learn what you will need to know all about the telescopes that can provide a fun and rewarding hobby for you and your family! |

## Post a comment