ELI5: Explain Like I'm 5

Ludwig Schupmann

Ludwig Schupmann was a man who was very interested in telescopes. He wanted to make them better so people could see things in space more clearly. He made a special kind of telescope called the Schupmann telescope. It was different than other telescopes because it used mirrors to reflect light instead of lenses to bend it. This made the picture you saw through the telescope clearer and sharper.

The Schupmann telescope also had something inside called a field-stopper. This helped to make sure that only the part of space you wanted to see was visible through the telescope, and nothing else.

Schupmann was a very smart man and worked very hard to make his telescopes work well. Even today, people still use his ideas to make telescopes better and more powerful.