Received: from watserv1.uwaterloo.ca (watserv1.waterloo.edu) by karazm.math.UH.EDU with SMTP id AA02012 (5.65c/IDA-1.4.4 for ); Thu, 24 Oct 1991 11:35:22 -0500 Received: by watserv1.uwaterloo.ca id ; Thu, 24 Oct 91 12:31:11 -0400 Date: Thu, 24 Oct 91 12:31:11 -0400 From: Dave Stampe-Psy+Eng Message-Id: <9110241631.AA29095@watserv1.uwaterloo.ca> To: glove-list@karazm.math.uh.edu yonder@netcom.com (Christopher Russell) posts: >I just kinda had a crazy idea and I was wondering what you more >experienced types think of it. (Maybe this is already being done, I >don't know). Maybe one small screen could be used with shutter >glasses in between the screen/optics and your eyes. I've heard the >Sega glasses aren't too good, but assuming that good shutter glasses >were used, it seems to me one could get away with one screen and save >weight and money. Though I'm not sure how you could place the screen >(private eye? lcd? ) without having to use mirrors to get it to both >eyes. hey, just brainstorming... This might induce some SERIOUS >eyestrain.. Whatcha think... You're right-- the problem IS how to get the display image to both eyes. Unless you use fiber optics (HAH!) you need mirrors to get both eyes in the act. The optical path is so long that you get a FOV of less than 20 degrees. If the images are'nt placed properly, you probably won't be able to fuse the two inages, and the displays will LOOK close (not good for the VR illusion. You might try strong prisms to "bend" the display into place, but this causes BIG distortions with the prism power you'd need. Also, each eye will see an image of the display tilted in opposite directions. That means that for non-stereo eyephones, you have the choice of: 1) using 2 displays, and feeding them both with the same signal 2) using one display, and covering/closing the other eye BTW, is anyone SERIOUSLY planning to drive their eyephones with stereo pictures, or is eyeryone going to start with a single image (flat). I'd like to suggest emulating the Sega glasses as a start for eyephone stereo. Switching the LCD backlights on and off won't work, as the image on the panels changes too slowly and the backights switch too slowly (I've measured their rise and fall times). A better way is to switch the video (but NOT the sync signals) to each display on and off. This will have lower the contrast somewhat, of course. If you're using CRTs or camera viewfinders are used, blanking signals could be sent right to the CRT driver electronics. -------------------------------------------------------------------------- | My life is Hardware, | | | my destiny is Software, | Dave Stampe | | my CPU is Wetware... | | | Anybody got a SDB I can borrow? | dstamp@watserv1.uwaterloo.ca | __________________________________________________________________________