refracting telescope

     

A refracting or refractor telescope is a ioptric telescope that uses a lens as its objective to form an image. The refracting telescope design was originally used in spy glasses and astronomical telescopes but is also used in other devices such as binoculars and long or telephoto camera lenses.

Trivia about refracting telescope

  • With a 40-inch lens, a telescope at the Yerkes Observatory in Wisconsin is the largest of this type

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