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Aug/084
DIY: Build your own 3D theatre
We all dream of it; when will we have our own 3D display in our home? Allthough I’m not fond of 3D displays with glasses, this one is definitly worth a mention. Over at WIRED magazine’s website (definitly worth watching) is a nice tutorial on creating your own 3D display. It uses 2 flatpanels, a half reflective, half transparent mirror and some woodwork.
I do wonder how you’re going to be sure you got the right polarisation, but maybe it’s standard for all polarised glasses and I think the top monitors polarisation is flipped or something by the mirror. And maybe you need a more transparent mirror to get less grey shade. Apart from that it is a great and cost effective way to get a cool 3D display.
1:34 pm on October 21st, 2008
The screens are polarized, typically at 45 degrees. The mirror means the polarization on one of the overlayed image goes the other way. As long as you have two of the same screen you know the polarization is correct, otherwise you can find it out through the documentation or calling the manufacturer. Or if you already have them, simply experiment with a polarized filter that you know the direction of.
I actually found this because I am considering doing something like this but with only one screen, and use as a heads-up display in my car.
3:54 pm on October 21st, 2008
Thanks for the heads up, the ‘typically’ was where my doubts were as well. How are you going to make sure the polarisation of the screens match and that they match the glasses. Great idea about the heads up display as well!
2:41 am on May 10th, 2010
Is this setup position-dependent as far as the viewer goes? That is, must one sit in one exact spot to properly experience the 3D effect or can one move around as the camera man does?
5:02 pm on May 26th, 2010
I think you can move horizontally but not vertically, depending on how you position the mirror.