- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Calculation of Coefficients of Cassegrain Telescope Mirrors | ||
| Baghdad Science Journal | ||
| Article 1, Volume 8, Issue 1, 2011, Pages 161-167 | ||
| Author | ||
| Ahmed Kamil Ahmed | ||
| Abstract | ||
| In the present work, a program for calculating the coefficients of the Aplanatic Cassegrain Telescope (ACT) system, free from the effects of spherical and coma aberrations, were constructed. In addition, the two-mirrors of the optical system, as aspherical surfaces, were adopted. This means, that the two-equations of the mirrors are assumed to be polynomial function of five even terms only. The numerical method, least-squares curve fitting method to calculate the two-mirror coefficients system, was adopted. For choosing the values and ratios that give the best results, Rayleigh Criterion (Rayleigh Limit), for purpose of comparison and preference, was adopted. | ||
| Keywords | ||
| Telescope; Aplanatic Cassegrain Telescope; Coefficients; Primary Mirror; Secondary Mirror; Aspherical Surfaces | ||
|
Statistics Article View: 149 PDF Download: 78 |
||