hellacious_z Posted January 17, 2009 Share Posted January 17, 2009 I'm looking for a device that would measure how far away a concentrated amount of diffracted Infrared light would be in something that has total internal reflection. And possibly some software that can take the values of said device and plot it on a graph/map. I know asking for this is.. Well pretty much a long shot. Any help would be greatly appreciated. Thank you in Advance :) Dan Link to comment Share on other sites More sharing options...
thrash-boy Posted January 17, 2009 Share Posted January 17, 2009 i dont know much about light and such, but what is diffracted light? also how can anything measure how far away light is? probably a stupid question Link to comment Share on other sites More sharing options...
dsavi Posted January 17, 2009 Share Posted January 17, 2009 Just a stab in the dark, but maybe something like MAPLE would work? Link to comment Share on other sites More sharing options...
hellacious_z Posted January 18, 2009 Author Share Posted January 18, 2009 i dont know much about light and such, but what is diffracted light? also how can anything measure how far away light is? probably a stupid question Diffracted light is when something has total internal reflection, and something interferes with that reflection to cause light to disperse. I kind of got my words messed up last night. I mean where the most diffracted light would be, not the distance. because if I have an x and y axis, I don't really need to know the distance. Thanks dsavi_x4, I'll check it out and see if ti can help me Link to comment Share on other sites More sharing options...
Smapla Posted January 18, 2009 Share Posted January 18, 2009 there is a youtube video where a guy made one by using a piece of glass, and LEDs which emit infrared light on the sides, and a camera to detect where the total internal reflection was broken by a finger touching the screen... i'll try to find it hang on Link to comment Share on other sites More sharing options...
hellacious_z Posted January 18, 2009 Author Share Posted January 18, 2009 Thanks smapla. I have actually seen that video, which made me think of an even better way to do it which does not require a projector, and doesn't require a camera under it. But I think I can get a few very small cameras, take them apart, and place them on the side of the acrylic. I basically just have to write the program that detects which camera has the most concentrated amount of diffracted infrared light Link to comment Share on other sites More sharing options...
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