Schmidt–Newton telescope

The Schmidt- Newtonian telescope (abbreviated SN telescope) is one of the telescopes and is a modification of the Newtonian telescope.

Survey

The execution of this type of telescope dates back to the Schmidt telescope of the optician Bernhard Schmidt, as well as the natural scientist Isaac Newton. This is not achieved by some compromises that were made for practical reasons, the performance of the Schmidt camera. The combination of lenses and mirrors is a catadioptric system.

In the tube of the Schmidt Newtonian telescope, the incident light is converged by the spherical primary mirror and is incident on the flat secondary mirror 45 ° laterally from the tube directs the light to the eyepiece. The secondary mirror is mounted at the center of a thin aspherical glass ( Schmidt plate ) by means of a mirror version as a separate optical element. The correction plate corrects the spherical aberration of the primary mirror, and completely minimize the coma of the system.