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Author Topic: How Does This Hand Held Console Produce 3D Directly On The Screen?  (Read 2962 times)

Offline neilep

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Dearest 3D-Ologists and those with degrees in 3D-Ology...


As a sheepy I of course  luff 3D stuff.  3D stuff is my all time favourite three dimensional thing that has width, height and depth.

So, ewe can imagine my surprise when lo and behold those klevur peeps at Nintendo made this :





Those Klever Peeps At Nintendo Made This


Nice eh ? Not being delivered next Tuesday because I don't think it's released yet !


Anyway, this klevur little box of gaming joy displays a 3D image without the need for the user to wear special glasses !!

Why's that then ?  How does this console display 3D directly on the screen ?


Knowing this from ewe will help me know something that I do not know...and then I will know it.


Hugs and shmishes


mwah mwah mwah




neil
I'm A 3D Sheepy
xxxxxxxxxxxxxxx


 

Offline Geezer

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It's FM.
 

Offline graham.d

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I believe it works because it is used fairly close to your eyes (unlike a cinema screen) so that the angle of viewing of each eye is significantly different. It enables the display to present a different view to each eye so that it can give a stereo image. The screen is devised so that the left eye will not see the image intended for the right eye and vice versa. I must emphasise that I have not seen one or read any technical data on the device, but this is how I expect it works.
 

Offline CliffordK

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Is it possible to make an LCD pixel so that it could only be viewed from right of center.
And, another pixel so that it could only be viewed from left of center?

If it was possible to specify the maximum/minumum viewing angles for each pixel (which would vary across the screen), then it would be easy enough to specify the input for each eye and to make a holographic image without the need for special glasses.
 

Offline graham.d

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Clifford, I don't think there is any holography involved. That would be much more difficult. It is simply presenting a different view to each eye. The cinematic stereo glasses do this by using polaroid lens arranged at right angles to each other or, on some sophisticated specialist systems, by having "Q-cells" that switch from dark to transparent in phase with alternating left/right images being presened on the screen.

I don't know how Nintendo devise their screen, but it can be done with simple optics - a sort of arrangement of triangular cross-sectioned vertical ridges and furrows. 
 

Offline graham.d

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In fact a quick search on the web suggests that it uses a "parallax barrier" to do this:

http://mediakick.org/2010/06/21/nintendo-3ds-how-it-works/
 

Offline neilep

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It's FM.

well..I'm convinced !!

McThanks again !!

 ;)

 

Offline neilep

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I believe it works because it is used fairly close to your eyes (unlike a cinema screen) so that the angle of viewing of each eye is significantly different. It enables the display to present a different view to each eye so that it can give a stereo image. The screen is devised so that the left eye will not see the image intended for the right eye and vice versa. I must emphasise that I have not seen one or read any technical data on the device, but this is how I expect it works.

Sounds perfectly plausible to me...thank ewe very much graham  :)
 

Offline neilep

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In fact a quick search on the web suggests that it uses a "parallax barrier" to do this:

http://mediakick.org/2010/06/21/nintendo-3ds-how-it-works/

Thanks again graham and clifford also for your contributions.

I guess one really needs to be directly in front of the screen to feel the benefit.
 

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