[AG-TECH] AG and 3D projectors

Brian Corrie bcorrie at sfu.ca
Tue Apr 20 13:41:33 CDT 2010

A number of the Canadian sites have stereoscopic projectors in them - 
mostly they use passive stereo systems, some use them as part of the AG 
environment, some consider them separate systems. Be careful if you are 
going passive stereo and are using only one of the projectors for the AG 
setup - this will result in lamp usage that is different across the 
systems and will slowly result in brightness and color differences 
between projectors as the lamp in the single projector gets used more.

We have one room with a large active stereo display (two Barco Galaxy 
projectors, blended and overlapped). This system is five years old. It 
is a very expensive solution and I would not go this route again. Not 
sure what active stereo projectors cost these days, but I am sure it is 
a lot cheaper. These days I lean towards high resolution being of higher 
value than the 3D so I would try to avoid compromising on the resolution 
to get the stereoscopic display. If you want some feedback on our direct 
experience with Barco let me know.

Finally, if you are going active stereo beware of projector noise! 
Stereo capable projectors, especially bright ones (5000+ lumens) are 
noisy. When we turned in our Barco Galaxies in our room, it sounded like 
a jet engine taking off. Our retrofitted acoustic enclosures are not 
pretty, but were necessary because our projectors were not in a 
projection booth.



Tim Scheitlin wrote:
> Jeremy,
> We ended up going with a Christie Mirage HD6 stereoscopic projector.  We also added a "4-window processor" so that we can route 4 (5 if you count the background) separate signals to the projector.
> We also looked at the Barcos, but settled on Christie based on cost, user experience, etc.
> So far (7 months or so) we have been happy with the choice.
> Tim
> On Apr 20, 2010, at 12:13 PM, Jeremy Mann wrote:
>> On Tue, Apr 20, 2010 at 12:57 PM, Tim Scheitlin <scheitln at ucar.edu> wrote:
>>> We have done this at NCAR.   In the past we had a double-wide, passive stereo projection system consisting of 4  (2x2) stacked projectors.   We recently moved to a single active stereo projector.     In both cases the projector configuration also doubled as our AG display system.
>> Tim, which single projector did you decide on? Currently I'm looking
>> at the Barco Galaxy NW-7 and NW-12.
>> -- 
>> Jeremy Mann
>> jeremy at biochem.uthscsa.edu
>> University of Texas Health Science Center
>> Bioinformatics Core Facility
>> http://www.bioinformatics.uthscsa.edu
>> Phone: (210) 567-2672

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