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Geometric Optics
Lenses
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Concept Version 8
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Combinations of Lenses

Keplerian Telescope

Keplerian Telescope

All refracting telescopes use the same principles. The combination of an objective lens 1 and some type of eyepiece 2 is used to gather more light than the human eye could collect on its own, focus it 5, and present the viewer with a brighter, clearer, and magnified virtual image 6. The magnification can be found by dividing the focal length of the objective lens by the focal length of the eyepiece.

Source

    Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

    "Refracting telescope."
    http://en.wikipedia.org/wiki/Refracting_telescope Wikipedia GNU FDL.

Related Terms

  • achromatic doublet
  • afocal system
  • aberration
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