From: nsmca@acad3.alaska.edu
Subject: Screensaver for VR glasses, reasons.
Organization: University of Alaska Fairbanks
Date: Sun, 13 Dec 1992 04:38:32 GMT


In article <1992Dec9.114527.23434@magnus.acs.ohio-state.edu>, nhaldar@magnus.acs.ohio-state.edu (Neil A Haldar) writes:
> In article <1992Dec6.070521.6225@Princeton.EDU> acoggins@bird.Princeton.EDU (Ad
> am Cody Coggins) writes:
>>In article <BynFHt.JvA@acsu.buffalo.edu> hennessy@acsu.buffalo.edu (DOG BASEBA
> LL!!!) writes:
>>>
>>>   Saw a pair of glasses on one of those discovery channel "beyond X"
>>>shows, that used nanowatt red lasers to directly draw video on the retina.
>>>advantages to this were said to be weight and size, since the lasers were
>>>themselves small units, and the glasses were simple sunglasses with reflectiv
> e
>>>coatings.  They only have one color, but decent resolution, and they're
>>>working on getting a new unit (RGB * 2 eyes) with better than svga res
>>>ready.  I am not making this up, I saw it.  they also said that the laser
>>>power was low enough to be totally safe.
>>>[...]
>>
>>I wonder if people will write "screensavers" so the prompt won't get burned
>>into your eye...
>>
>>Seriously, do people think the risk to eyes is any worse than with
>>a regular monitor?
>>
> 
> Well...  The reason you've got a screensaver on your computer is to prevent 
> burn-in on the phosphor that coats the back of the CRT.  Your eyes, however, 
> don't have this same phosphorous material.  Your retina has rods and cones that
> detect light levels in color or shades of grey.  The laser-retina scanner, 
> saying that it's *real* low-powered, wouldn't need a "retinasaver".  What 
> happens if you stare at a bright object for a long time?  You get this 
> reverse-image in your field of view for awhile until your eye compensates.
> 
> This is what would happen, IMO.  As long as the laser is low-powered enough, it
> shouldn't be much different than driving/walking on a really sunny day.
> 
>>But if this technology was perfected, and connected with a chording keyboard
>>and a lightweight cpu & mass storage device, then one could do some
>>serious computing while walking, etc.
>>
>>-Cody Coggins <acoggins@phoenix.princeton.edu>
>>
> 
> *>  Neil Haldar                               Director of Operations         <*
> *>  nhaldar@magnus.acs.ohio-state.edu         The Presidio Group             <*
> *>  presidio@well.sf.ca.us                                                   <*
> *>  364 West Lane Ave #225, Cols., OH 43201   614.299.8529                   <*
> -- 
> *>  Neil Haldar                               Director of Operations         <*
> *>  nhaldar@magnus.acs.ohio-state.edu         The Presidio Group             <*
> *>  presidio@well.sf.ca.us                                                   <*
> *>  364 West Lane Ave #225, Cols., OH 43201   614.299.8529                   <*

But a screen saver type idea is needed, namely to not over exer4cise the
muscles of the eyes and such.. I know one of the reason why I am near sighted
is because of exercises only certain muscles and some muscles get over
exercised and others get weak and my eye shape changes.. Also I would think the
retina and eyes would get tired faster without some kind of screen saver.
Why over use something when they are not needed to over used..



Newsgroups: alt.cyberpunk.tech