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Visualization of the lens equation

The interactive animation represents the geometric relationships described by the lens equation.

You can zoom in and zoom out the rectangle in the animation by clicking on it.

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

Full screen

Download

After the download, the animation can be displayed in full screen mode. Integration into PowerPoint is also possible.

Description

The animation contains two areas with the following content:

AreaDescription
leftExample of an optical mapping with the most important rays
rightThe mathematical laws as formulas

The focal length of the lens and the object height can be continuously adjusted via two controls. All the elements shown are continuously adapted in real time.

Symbols

$f$: Focal length of the lens
$g$: Object distance
$b$: Image distance
$G$: Object height
$B$: Image height

Formulas

The lens equation (also Newtons equation) is:

$$\frac{1}{f} = \frac{1}{g} + \frac{1}{b}$$

$f$: Focal length of the lens
$g$: Object distance
$b$: image distance

General

Title:Visualization of the lens equation
Target group:
  • Teachers and lecturers
  • Self-learners
Platforms (primary):
  • Microsoft® Windows®
  • Microsoft® PowerPoint®
  • Apple® Macintosh®
Features
  • Enlargeable without loss
  • No installation required
DocumentsLicense Information
About the security of the Flash Player

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Reflection law

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Concept of numerical aperture

Sources

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