K. Iizuka, Cellophane as a half-waveplate and its use for converting a laptop computer screen into a 3D display,” Rev. Sci. Instrum. 74, 3636-3639 (2003).
http://individual.utoronto.ca/iizuka/re ... ophane.htm
Using cellophane as a half wave plate
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Dinesh
Using cellophane as a half wave plate
It's an interesting idea. You do have to work the cellophane. We used these techniques to make a waveplate out of cellophane in the late 80's, but it did have to be worked. You need to draw a flat object over the cellophane repeatedly and flatten it to ensure that the optic axis is along the long side. However, you also have to have the two left eye/right eye images. Just splitting the screen in half won't make whatever is on the monitor into 3D. If you can get a stereo pair of pictures, wouldn't it be easier to simply color one red and the other blue? Or just cross your eyes and squint, as in: