Thin Lens (converging/diverging lens/mirrors)
- blue lines show ray-paths
- green lines show backward tracing for virtual image
- first textfield shows current mouse position (x , y) relative to lens
- small red lines show distances f and 2*f away from the center of lens.
Parameters can be changed :
- Select Lens for thin lens effect(default), select mirror
for concave/convex mirror effect)
- Change between converging/diverging lens
- press toggle button +/-
- Move the object
- click near tip of the object, and drag it to where you like it and
release the mouse button.
- Move the lens:
- click near center of the lens, and drag it to left or right.
- if click with left mouse button, only lens will move.
- if click with right mouse button, object will move with lens.
- Change the focus length of the lens
- click near the top/bottom of the lens, then drag the mouse . Try it!
- if you adjust the size of window, parameters reset to default values.
- you can open more then one window to compare different cases, close
the created window to Quit
- you can change the following parameters inside the "textfield".
Press to
try it!
Parameters |
distance |
defaults |
P |
object |
20. |
q |
image |
20. |
f |
focus |
10. |
m=-q/p |
magnification |
1. |
The performation of this java applets is better with Internet Explorer
than with Netscape.
(Could someone tell me what is the reason?)
URLs link to this page
- http://www.tp.umu.se/TIPTOP/vlab/
- http://www.gamelan.com/frame/Gamelan.educational.physics.html
- http://www.west.it:80/ensites/cdl.htm
- http://jobeso.her.itesm.mx/fisica/virtual/
- http://www-sci.lib.uci.edu/~martindale/GradPhysics.html#PAPPLETS
- http://www.qesn.meq.gouv.qc.ca/telescience/weboptic.htm#courses
- http://shahrazad.bd.psu.edu/classes/phys203/203feb171997.html
- http://www-sci.lib.uci.edu/HSG/GradPhysics.html#TIME
- http://cyberscol.qc.ca/Classes/Physique/P1/sites.html
- http://www.physik.de/wwwexper.html
- http://www.scri.fsu.edu/~jac/smp-sites.html
- http://www.ae.utexas.edu/~chris/physics/tutor/
- http://didaktik.physik.uni-wuerzburg.de/~pkrahmer/home/java1.html
- http://heart.engr.csulb.edu/~rtoossi/physics/demos.html#optics
- http://www-sci.lib.uci.edu/~martindale/GradPhysics.html
- http://www.qesn.meq.gouv.qc.ca/telescience/weboptic.htm#top
- http://ourworld.compuserve.com/homepages/Peter_Krahmer/java1.htm
- http://www.fis.unipr.it/~coisson/fo/foweb.html
Any suggestions? just click my E-mail address hwang@phy03.phy.ntnu.edu.tw
Thanks to : Tim Mewes, Mathieu.Dubreuil, Kenneth.Holmlund, ... for their
valuable suggestions.
Other java applets
Source code for this applet
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