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Teaching animation: Principle of spherical deviation

The animation represents the principle of spherical deviation. The lens shown focuses several light beams. Depending on the point of impact on the lens, different focal points occur.

To make the deviation more visible, the area of the focal points can be zoomed in.

The animation was originally developed as a offline application for Windows and Macintosh systems and for integration into Microsoft PowerPoint slides. The online version presented here serve as a preview. The exe or app file can be downloaded free of charge from members area.

Download Windows

Download Macintosh


When the surface of a lens has the shape of a segment of a circle, the focal points of parallel incident beams are not exactly in the same position. The focal length of the inner rays is slightly larger than the focal length of the outer rays. In the animation, this phenomenon can be observed by zooming the focal point.

The spherical deviation is correctly calculated in the animation. This realistic animation illustrates shows that the spherical deviation is minimal, but still exists.

The two outside rays are shown first in the animation. The deviation becomes visible as soon as the inner rays are overplayed.

General information

Title:Teaching animation: Principle of spherical deviation
Target group:
  • Teachers and lecturers
  • Independent learners
Platforms (primary):
  • Microsoft® Windows®
  • Microsoft® PowerPoint®
  • Apple® Macintosh®
  • Resizable without the loss of visual clarity
  • No installation required
DocumentsLicensing Information

Further animations for PCs

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Die Animation zeigt eine Linse, die einen Lichtstrahl fokussiert. Jeder Farbanteil des Lichts bildet einen anderen Fokuspunkt.
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Begriff der numerischen Apertur


Authoring tool: Adobe Animate


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