Hi, We tested a Planar 17" stereo monitor a year or so ago on our Macs (with the image flipping card) and the problem was that although the stereo effect was nice, we had to use side-by-side and an extended desktop stereo in eg. PyMol to get the left and right eye images to the right monitors. While this is relatively easy to do, the problem is that your mouse pointer is in either screen and you never know which one... In practice it was fine for looking at stereo, but for building a model etc. it was pretty useless. It also turned out that the medical imaging people etc. usually have a _third_ LCD on the side to rotate the image. I don't know if you could make Xorg.conf to turn a quad-buffered stereo signal useful for this or alternatively make the software (PyMol, coot, etc.) support this type of stereo, but without that I would not recommend this system for xtallography..
The mirror at least in the Planar system is definitely half-silvered (so it will turn the polarisation of the upper monitor) and it's positioning had to be pretty precise to get a nice image. So while you might build such a system your self, it might take some time and machining... Esko Esko Oksanen, M.Sc. European Molecular Biology Laboratory, Grenoble Outstation 6 rue Jules Horowitz BP 181 38042 Grenoble Cedex 9 FRANCE tel. +33-4-76207633 mob. +33-6-67416110 Skype ejoksane [EMAIL PROTECTED] Quoting Harry Powell <[EMAIL PROTECTED]>: > Hi > > Just looking at the diagrams, I don't think the glass is half-silvered > - it looks like a large sheet of Polaroid(TM). It only needs to polarize > > the transmitted light from the vertically oriented monitor, since the > reflected light from the interface between two materials (at least one > of which has a refractive index) will be polarized in any case (that's > why your Polaroid(TM) sunglasses let you see below the waves...). My > physics is too rusty to remember, but I think the vertical monitor in > this case needs to be polarized vertically, since the reflected > polarized light will be horizontal. > > No idea where you can buy large sheets of Polaroid(TM) though. > > IMWBW, though... > > On 4 Feb 2008, at 11:30, P Hubbard wrote: > > > Hi Andrew, > > > > Just like the commercial systems, the glass is the only special piece > > of kit (which can be bought separately). The LCD monitors are just set > > > up to display either left or right channel. If you ask me, I think > > these companies are just a rip off! > > > > Paul > > > > > Date: Mon, 4 Feb 2008 11:24:32 +0000 > > > From: [EMAIL PROTECTED] > > > Subject: Re: [ccp4bb] 3D Glasses - Vuzix HMD by eDimensional > > > To: [email protected] > > > > > > P Hubbard wrote: > > > > > > > Just an FYI.... you can build those yourself at a fraction of the > > price! > > > > You just need the special piece of glass, two identical LCD > > monitors, > > > > and an edited X config file. > > > > > > The clever bit of the Omnia system (and the similar one from Planar, > > > which being from the US might be cheaper there...?) is the DVI > > > "reflector" card that flips the image to be displayed on the screen > > seen > > > in the half-silvered mirror. > > > > > > Are you implying that an appropriately written Xorg.conf can get the > > > graphics card to do this instead? The prospect is very appealing! > > > > > > Regards, > > > > > > Andrew > > > > > > -- > > > Dr. Andrew Raine, Head of IT, MRC Dunn Human Nutrition Unit, > > > Wellcome Trust/MRC Building, Hills Road, Cambridge, CB2 2XY, UK > > > phone: +44 (0)1223 252830 fax: +44 (0)1223 252835 > > > web: www.mrc-dunn.cam.ac.uk email: [EMAIL PROTECTED] > > > > Helping your favorite cause is as easy as instant messaging. You IM, > > we give. Learn more. > Harry > -- > Dr Harry Powell, MRC Laboratory of Molecular Biology, MRC Centre, Hills > Road, Cambridge, CB2 2QH > > >
