Optimal Baffle Design in a Cassegrain Telescope |
| |
Authors: | V Yu Terebizh |
| |
Institution: | (1) Southern Station of Sternberg Astronomical Institute, Moscow University, Russia;(2) Crimean Astrophysical Observatory, Ukraine, Nauchny, Crimea, Ukraine, 98409 |
| |
Abstract: | An exact analytical procedure is described for the optimum design of baffles for any Cassegrain telescope with conicoid type
mirrors. Here, `optimum' means the least obstruction coefficient given perfect blocking of direct light by baffles. The corresponding
algorithm is based on the ray-tracing formulas in a two-mirror telescope with arbitrary position of the aperture stop. The
optimal configuration of baffles is unique. The dependence of the obstruction coefficient upon the telescope characteristics
is studied. The optical system can be designed in such a way that the obstruction is equal to a predefined value. As examples,
the Hubble Space Telescope and the Ritchey–Chretien system with the obstruction coefficient 0.25 are considered.
This revised version was published online in July 2006 with corrections to the Cover Date. |
| |
Keywords: | Cassegrain Richter-Slevogt systemRitchey-Chretien system telescopes |
本文献已被 SpringerLink 等数据库收录! |
|