Saturday, August 27, 2011

Home-made 3d Glasses?!

Hello All! ^_^
Being busy with college, I wasn't able to post much this week. So today I would like to share a superb thing I have came across on the Internet - How to make your own 3D-Glasses! Wow! :D
But first lets throw some light on how things appear to be 3D on our 2D screens! o_O
Anaglyph images, are the images that are used to provide a stereoscopic 3D effect, when viewed with glasses where the two lenses are different (usually chromatically opposite) colors, such as red and cyan or red and green. Actually, these Anaglyph images are made of two layers of colors that are superimposed in a manner that they can produce a depth effect. What they do is, the main object or you can say our subject, is in the center of the image, and the foreground and background are shifted in opposite directions, laterally. The picture contains two differently filtered colored images, one for each eye. When viewed through the "color coded" "anaglyph glasses", they reveal an integrated stereoscopic image. The visual cortex of the brain fuses this into perception of a three dimensional scene or composition. So what does the last line mean? Simple! - its not only the image that's working, more importantly its your brain that perceives it correctly! So don't think 3D viewing to be a miracle of just the one who created it, but consider it to be 75%his work, and 25% your own work. haha!
So now lets talk about how to make your own 3D glasses or you can call them, er, Anaglyph Glasses! :)
So you would need the following:-
  • A cardboard (10"x10")
  • 2 cellophane sheets(3"x3"), you may also use any transparent thin plastic lamina too.
  • A blue/cyan and a red, alcohol-based ink marker
  • Instead of Cellophane and markers, you may use Sheets of red and blue acetate (available at your local craft store)as alternative! 
Now how to do it. Well its just too simple! Make a simple cardboard spectacle frame for yourself, as per your requirement, your face-build, distance between eyes, etc. make sure that it resembles a normal spectacle frame, without glasses and instead having space for them. Now instead of glasses you may do one of the following:
  • Use the cellophane sheet(or a thin, transparent, plastic lamina) and color it using your markers. On one piece, color both sides red, and on the other piece, color both sides blue/cyan/green.
  • Sheets of red and blue acetate.
Any of the alternatives you use, they would be your lenses/glasses for the spectacle frame you just made. So the size must be in accordance, preferably, slightly bigger so you may get them hold on the frame easily! Now all you got to do is just insert these new lenses/glasses of yours in the spectacle frame you made earlier, and you have your own, Home-made 3-D glasses/Anaglyph glasses! 
Remark - The glasses that would be made using this, their quality depends on the quality of material used. Moreover, they are just temporary low-level glasses, don't think they can easily replace the actual anaglyph glasses. These may come to rescue when you don't any anaglyph glasses, but have something 3-D to view, like a magazine! 
Thank you for reading! :)

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