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Design of All-Reflecting Aplanatic Objective | ||
| Iraqi Journal of Applied Physics | ||
| Article 1, Volume 9, Issue 3, 2013, Pages 19-22 | ||
| Author | ||
| M.S. Ahmed | ||
| Abstract | ||
| Laser beam aiming and narrow field imaging systems usually incorporate aplanatic objectives, preferably reflective. Two examples of two-reflector objective namely the Gregorian and Cassegrainian are considered. The work herein is aiming at determining the aspheric profiles of the two reflectors so as to attain aplanatism. Detailed discussion on the Cassegrainian objective and derivation of equations of its aspherics are given. The work can be extended to deal with the design of reflective objectives convenient to ultra-violet microscopy. | ||
| Keywords | ||
| Reflecting objectives; Aplanatic systems; Geometrical optics; Optical design | ||
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