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Author Topic: What will happened if part of the light path were blocked  (Read 23206 times)
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Fu-Kwun Hwang
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on: June 25, 2005, 11:15:17 am »

There is a common mis-concept among students:
 Blocking part of the lens surface would block the corresponding part of the image.

The intensity of the image for the object is reduced is some light path were blocked (the whole image is still there).
Click "block part of light path" button or drag lower end of the black line to lower position to block part of light paths.
The intensity is not the same if part of the light paths were blocked.

You can change the slit position and its width with mouse drag and drop function.
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Reply #1 on: January 01, 2010, 09:32:10 pm »

applet no loading please check Grin

Java Plug-in 1.6.0_17
Using JRE version 1.6.0_17-b04 Java HotSpot(TM) Client VM


load: class users.ntnu.fkh.thinlensintensity_pkg.thinlensintensityApplet.class not found.
java.lang.ClassNotFoundException: users.ntnu.fkh.thinlensintensity_pkg.thinlensintensityApplet.class
   at sun.plugin2.applet.Applet2ClassLoader.findClass(Unknown Source)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   at java.lang.ClassLoader.loadClass(Unknown Source)
   at sun.plugin2.applet.Plugin2ClassLoader.loadCode(Unknown Source)
   at sun.plugin2.applet.Plugin2Manager.createApplet(Unknown Source)
   at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
   at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: open HTTP connection failed:http://www.phy.ntnu.edu.tw/ntnujava/ejs4/users/ntnu/fkh/thinlensintensity_pkg/thinlensintensityApplet/class.class
   at sun.plugin2.applet.Applet2ClassLoader.getBytes(Unknown Source)
   at sun.plugin2.applet.Applet2ClassLoader.access$000(Unknown Source)
   at sun.plugin2.applet.Applet2ClassLoader$1.run(Unknown Source)
   at java.security.AccessController.doPrivileged(Native Method)
   ... 7 more
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Fu-Kwun Hwang
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Reply #2 on: January 01, 2010, 11:32:47 pm » posted from:Taipei,T\'ai-pei,Taiwan

Thank you! It is fixed now. (It is seems to be java version problem).
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