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Old 11-19-2014, 04:04 PM
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rpm1200 rpm1200 is offline
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Join Date: Jan 2006
Location: Rochester, NY
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On a "glasses-free" (or autostereoscopic) 3-D display, the LCD displays alternating vertical strips containing the "left" and "right" parts of the image. Then there is a lenticular lens over the LCD that makes sure the "left" part of the image goes to the left eye and the "right" part of the image goes to the right eye. You have to be centered on the screen for the 3-D effect to work. The same is actually possible with photographic images, you can print these out yourself and buy the lenticular lenses to apply to prints, and various companies also make premade 3-D prints.

I have a Fujifilm 3DW3 camera which has an autostereoscopic display. Fuji also made a 3D picture frame and Sharp made a cell phone with 3D camera and autostereo LCD. Here in Rochester there is a company called DTI (Dimension Technologies Inc, dti3d.com) that made a small (15" IIRC) autostereo LCD monitor. They have some patents around the technology and went after Sharp in court for infringing on them. I saw a demo of their monitor, good 3-D effect when you were lined up right with it. The power LED had a filter on it so that you could only see it when you were properly lined up for 3-D viewing. Multiple people could line up to view in 3-D side-by-side.
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