A refracting telescope (also called a refractor or dioptric telescope) is a type of optical telescope that uses a lens as its objective to form an image. The refracting telescope design was originally used in spyglasses and astronomical telescopes but is also used for long-focus camera lenses.. Find out about refracting telescope. How does a refracting telescope work. Check out the ray diagram. Difference between refracting and reflecting telescopes.
Refracting telescope Refracting telescopes, including Keplerian telescopes or Galilean telescopes, use lenses to produce inverted, magnified, virtual images. Here we make a Keplerian telescope from simple elements and explain its operation using a ray diagram. This page supports the multimedia tutorial Geometrical Optics.. Telescopes collect light from distant objects in space. They bring the light together at a focus. The focused image is viewed using the eye. Or the light can be measured using an instrument.Not all telescopes focus light in the same way. Refracting telescopes use lenses. Reflecting telescope use mirrors.We can use ray diagrams to compare types of telescope. These show the path that light takes.