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3d anti-eye strain screen

3d computer display would prevent eye strain during the day
  (+1, -6)(+1, -6)
(+1, -6)
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Your eyes get tired and hurt when you sit at the computer for too long, because they have to focus on one spot. If you wore glasses or contacts or somehow the screen appeared 3d in some way, though, then the computer could make itself look closer or further away over the course of the day, allowing your eyes to focus at varying distances, preventing strain.

It would prevent color displays, unless the 3d were done really innovatively (90 degree polarizes glasses?), but could be useful for those working with spreadsheets or bare text who don't need color displays anyway.

Smurfsahoy, Dec 01 2008

Inspired idea _22EZ-iType_22_20mo..._2fkeyboard_20array
Thanks for reminding me. [theleopard, Dec 03 2008]

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       what kind of 3d display are you suggesting?
kamathln, Dec 01 2008
  

       Most of the time the eye strain is because the screen is too close. Having it 3D would actuall make it worse as you would be focussing on the same distance but perceive the distance to be different.   

       You are actually better off getting a much larger screen and moving it further away.
miasere, Dec 01 2008
  

       [Having it 3D would actuall make it worse as you would be focussing on the same distance but perceive the distance to be different.]   

       The whole point of 3d illusions is that they trick your eyes into focusing differently. The most obvious example would be those magic eye posters where you have to intentionally cross your eyes to see the illusion. Glasses just do the opposite for the same effect.   

       And the effect could make the screen closer OR further away for your eye's purposes.   

       Keep in mind that it is often impossible to move a screen further back, given limitations in the size of cubicles, etc.
Smurfsahoy, Dec 01 2008
  

       I've never seen a 3D display that didn't strain my eyes.
phundug, Dec 01 2008
  

       me neither
kamathln, Dec 02 2008
  

       The 3D images dont make your eyes focus at a different distance - the image IS 20cm away and in focus so your eyes ARE focusing 20cm away.   

       The difference is that your eyes are not looking at the same point because your eyes have diverged. It is the same as a stereogram only the image is hidden.
miasere, Dec 02 2008
  

       This reminds me of an idea I had for a typing-while-you-look-at-the- screen computer set up. I might just post it you know...
theleopard, Dec 02 2008
  

       [longshot] you are confusing small with far away.   

       It would however work if the screen moved back and forth but the relative size stayed the same, so if it doubles the distance away the font size doubled.
miasere, Dec 02 2008
  

       [The 3D images dont make your eyes focus at a different distance - the image IS 20cm away and in focus so your eyes ARE focusing 20cm away.]   

       Focus is based on the point of intersection if you were to draw two vectors from each eye. A 3d image tricks you into focusing on a point that is NOT where the image is.   

       Perception != reality
Smurfsahoy, Dec 03 2008
  

       [+] for preventing eyestrain idea, though you'd need a lens (like slowly-varying glasses) to change the focus distance.
sninctown, Dec 03 2008
  

       //Focus is based on the point of intersection if you were to draw two vectors from each eye//   

       No it isnt. Your eyes will focus on something by adjusting the lens in your eye to make the image clear. The angle between the eyes gives perspective, however this does not give eye strain. Eye strain is caused by the overwork of the ciliary muscles which control the lens.
miasere, Dec 03 2008
  
      
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