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Anonymous

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Posted on Wednesday, August 13, 2003 - 11:58 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Can it be done?

http://individual.utoronto.ca/iizuka/research/cellophane.htm
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David Sykes

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Posted on Thursday, August 14, 2003 - 8:19 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Don't know.
Link not responding, try again later.
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anonymoose

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Posted on Friday, August 29, 2003 - 8:11 pm:   Edit PostDelete PostView Post/Check IPPrint Post

This showed up on Slashdot today. Actually it's pretty lame. You cover half of an LCD screen with cellophane, which makes a pretty good retarding film, causing the polarization direction of light passing though the cellophane to rotate by 90 degrees. You then put a left eye view on one side of the screen and a right eye view on the other, and put on your 3D polarized glasses. In another variation you can put larger polarized filters between your eyes and the screen and look through those.

The trouble is that in either case you have to look at images on two sides of the screeen crosseyed or in parallel to see 3D (depending on how you set it up). Which begs the question, why bother with the cellophane and glasses/polarizers at all??? Just put two side by side images on any old screen and look at them crosseyed or in parallel!
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Peter Wimmer

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Posted on Friday, August 29, 2003 - 9:15 pm:   Edit PostDelete PostView Post/Check IPPrint Post

Very true...

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