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| Gallery: Optics | ||||||||||
Parallel light rays meet in the focal point of a lens. The distance between the focal point f and the lens is called focal distance. Light rays that go throught the midpoint of the lens are not influenced by it.
| Change the position and the focal distance of the lens as well as position and size of the object using the mouse! | |
| These properties enable us to do a geometric construction of the image A'B' of an object AB. The point B' is the meet of the line through B and the midpoint and the line which can be found by following the light through the focal point. | |
©1999 Jürgen Richter-Gebert & Ulrich Kortenkamp. Java and all Java-based trademarks and logos are trademarks or registered trademarks of Sun Microsystems, Inc. in the United States and other countries. Cinderella is independent of Sun Microsystem, Inc. PostScript is a registered trademark of Adobe Systems, Inc. All other brand and product names are trademarks, registered trademarks or service marks of their respective holders.