With this little applet it is possible to simulate how a beam of light or an object light behaves when it passes through lenses or reflects from mirrors:
http://physics.bu.edu/~duffy/java/Opticsa1.html
Optics simulation
Optics simulation
Here is a larger version:
http://www.hazelwood.k12.mo.us/~gricher ... intro.html
Interesting to use these to test beam expander and collimator designs.
http://www.hazelwood.k12.mo.us/~gricher ... intro.html
Interesting to use these to test beam expander and collimator designs.
Optics simulation
just what I've been looking for to use in the Optics class I teach! Too bad they misspelled aperture!