NTNUJAVA Virtual Physics Laboratory
Enjoy the fun of physics with simulations!
Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/
September 17, 2019, 11:53:09 am *
Welcome, Guest. Please login or register.
Did you miss your activation email?

Login with username, password and session length
 
   Home   Help Search Login Register  
First time is the lat time. ...Wisdom
Google Bookmarks Yahoo My Web MSN Live Netscape Del.icio.us FURL Stumble Upon Delirious Ask FaceBook

NTNUJAVA Virtual Physics Laboratory
Enjoy the fun of physics with simulations!
Backup site http://enjoy.phy.ntnu.edu.tw/ntnujava/ > JDK1.0.2 simulations (1996-2001) > Optics > Thick Lens
Pages: [1]   Go Down
« previous next »
  Print  
Author Topic: Thick Lens  (Read 92154 times)
0 Members and 1 Guest are viewing this topic. Click to toggle author information(expand message area).
Fu-Kwun Hwang
Administrator
Hero Member
*****
Offline Offline

Posts: 3082



WWW
«
Embed this message
on: January 29, 2004, 10:51:12 pm » posted from:,,Satellite Provider
Registed user can get files related to this applet for offline access.
Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
If java program did not show up, please download and install latest Java RUN TIME
There are 7 translations,
Higher number at the end means more translation been done.
or



When a beam of light meet the boundary between two different media,
    some light is reflected back to the same media
      (law of reflection)

    some light is refracted to a different media
      ( law of refraction).


The same laws applied when light wave impinging the surface of a lens.
This java applet let you play with a thick lens.


How to play:
    You can enter the index of refraction of the lens into the Text Field.

    The gray ellipse area represents the thick lens.
    You can click the left mouse button within one of four cyan circle around the lens
      and drag the mouse button to change the shape of the lens.

    You can click the circle at the center of the ellipse and drag the mouse left/right to move the lens horizontally.
    Light beam entering from the left of the screen.

    You can click at the beam and drag it up/down. Hit Reset button for default conditions.



Approximate indices of refraction of various substance
Air1.00029
ice1.31
water1.333
Ethyl alcohol1.36
Fused quartz SiO21.4584
glass1.5 - 1.6
diamond2.417
Futile TiO22.907
Gallium phosphide3.50



http://www.youtube.com/watch?v=EXmaY2txEBo


Registed user can get files related to this applet for offline access.
Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
If java program did not show up, please download and install latest Java RUN TIME
There are 7 translations,
Higher number at the end means more translation been done.
or
*** There are 1 more attached files. You need to login to acces it!
Logged
PELADO
Newbie
*
Offline Offline

Posts: 1
«
Embed this message
Reply #1 on: May 17, 2008, 11:03:16 pm »
OK  Grin
TKS FOR ALL YOU ARE A GENIUS
Logged
Wieslaw
teacher of physics
Newbie
*
Offline Offline

Posts: 3
«
Embed this message
Reply #2 on: August 08, 2009, 01:38:31 am » posted from:Warsaw,Mazowieckie,Poland
It is really nice, however I would like to suggest making another similar applet, a little more complicated. It could show the rays in a human eye. There just should be some procedures used here repeated more times.
Logged
leeyiren
Jr. Member
**
Offline Offline

Posts: 39
«
Embed this message
Reply #3 on: December 31, 2009, 04:31:25 am »
prof, am i right to say that this simulation is to show us that the thicker the lens, the shorter the focal length?
Logged
leeyiren
Jr. Member
**
Offline Offline

Posts: 39
«
Embed this message
Reply #4 on: December 31, 2009, 04:45:00 am »
can anyone briefly tell me what is the equation in the simulation?
Logged
Fu-Kwun Hwang
Administrator
Hero Member
*****
Offline Offline

Posts: 3082



WWW
«
Embed this message
Reply #5 on: December 31, 2009, 12:45:50 pm » posted from:Taipei,T'ai-pei,Taiwan
Refraction obey Snell's Law n_1\sin\theta_1=n_2\sin\theta_2
Logged
leeyiren
Jr. Member
**
Offline Offline

Posts: 39
«
Embed this message
Reply #6 on: December 31, 2009, 07:39:10 pm »
Quote from: Fu-Kwun Hwang on December 31, 2009, 12:45:50 pm
Refraction obey Snell's Law n_1\sin\theta_1=n_2\sin\theta_2

what i mean is the equation "x^2/n+y^2/n=1"

i dun see the snell's law in it?
Logged
Fu-Kwun Hwang
Administrator
Hero Member
*****
Offline Offline

Posts: 3082



WWW
«
Embed this message
Reply #7 on: December 31, 2009, 11:09:08 pm » posted from:Taipei,T\'ai-pei,Taiwan
\frac{x^2}{a^2}+\frac{y^2}{b^2}=1 is the equation for the shape of the lens (equestion of Ellipse).
Snell's law is used to calculate the ray refraction when light enter into lens and get out of the lens.
You should be able to find it in the code.

Quote
am i right to say that this simulation is to show us that the thicker the lens, the shorter the focal length?

Yes. The focal length getting shorter when lens is getting thicker.
When the lens is too thick or when the ray is too far from the axis, there might be a single focual point any more.
Please check out Lens (thick lens) and Mirror.
Logged
Pages: [1]   Go Up
  Print  
First time is the lat time. ...Wisdom
« previous next »
 
Jump to:  


Related Topics
Subject Started by Replies Views Last post
Lens (thick lens) and Mirror
Optics 		Fu-Kwun Hwang 20 92394 Last post December 31, 2009, 04:41:17 am
by leeyiren
Physlets Optics java applet: A simple object on the left of the lens and a lens
Collaborative Community of EJS 		lookang 0 9154 Last post September 02, 2008, 01:47:38 pm
by lookang
Thick Lens
optics 		ahmedelshfie 3 9186 Last post October 02, 2010, 12:23:12 am
by ahmedelshfie
Cylindrical lens adapter
Request for physics Simulations 		Ooze3d 1 6002 Last post June 04, 2012, 07:28:51 am
by Fu-Kwun Hwang
The requested URL /sci_lab/ntnujava/Lens/lens.zip was not found on this server.
Request for physics Simulations 		shannon.reczek@pisd.edu 1 2064 Last post May 04, 2016, 08:27:58 pm
by lookang
Powered by MySQL Powered by PHP Powered by SMF 1.1.13 | SMF © 2006-2011, Simple Machines LLC Valid XHTML 1.0! Valid CSS!
Page created in 0.567 seconds with 22 queries.since 2011/06/15