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In article <3166@sugar.uu.net>, peter@sugar.uu.net (Peter da Silva) writes:
> This subject first came up some months ago in comp.society.futures, by the
> way. I posted a great big article about my fantasies of a virtual reality
> using the equivalent of the NASA VIVED virtual environment helmet. If you
> used a helmet with LCDs and some clever optics in it you could switch your
> attention between the virtual world and the real one just by changing your
> focus (you can see through LCD displays). You'd need enormous resolution to
> be able to read text at a resonable virtual distance, but that's just an
> implementation detail.

Physics Question.

What resolution (pixels per inch or meter) and contrast (bits, levels, ratio)
are needed to form a decent hologram.  

My concept of artificial reality goggles are a pair of hologram plates 
about 2 to 4 inches in front of the eyes that fill the field of view.
What is displayed is not the image but the hologram (computed) of the image.
This is illuminated by laser(s).  If the pixels have a fast enough response,
frame sequential color would be nice.   

How good would the display have to be, and how many instructions would need 
to be processed to display a frame.

 
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