Schmidt-Newton telescope
The Schmidt-Newton telescope (abbreviated SN telescope) is one of the reflecting telescopes and is a modification of the Newton telescope .
Overview
The execution of this type of telescope goes back to the Schmidt telescope of the optician Bernhard Schmidt and the naturalist Isaac Newton . However, due to some compromises made for practical reasons, the performance of the Schmidt camera is not achieved. The combination of lenses and mirrors makes it a catadioptric system .
In the tube of the Schmidt-Newton telescope, the incident light is bundled by the spherical main mirror and hits the flat 45 ° secondary mirror , which directs the light laterally out of the tube to the eyepiece . The secondary mirror is attached in the middle of a thin aspherical glass pane ( Schmidt plate ) by means of a mirror mount as a separate optical element. The correction plate completely eliminates the spherical aberration of the main mirror and minimizes the coma of the whole system.
