| Author | Message | ||
     Alatar Rating: N/A |
Does anyone know if LCoS projectors work with passive (i.e. polarized) stereo? My guess would be no, as they still use liquid crystal and thus the light output is already polarized on output from the projector. On normal LCD projectors, there's this trick with the saran-wrap (90 degree retarder) and swapping the green outputs, I wonder if the same approach will work for LCoS? | ||
| Anon Rating: N/A |
JVC apparently has 3D adapter kits to work with their LCOS / D-ILA projectors. http://www.jvcdig.com/3d_kits.htm It all depends on how the LCOS projector is polarized. Did anyone try the Canon Realis? M.Husak, can you shed some light on this? | ||
| M.H. Rating: N/A |
From my undertstanding D-ILA is based on the imprved LCD principle. Intead of passing the light through the LCD crystals they use a mirror and the LCD panel reflects the light ... So with otimized positioning of the D-ILA polarizer they can get higer effeciency of passive projection (similar thing coul be obtained with LCD projectors with custom made fiters polaraizng in the same direction(Green not 90 deg rotated to the Red and Blue) ... The key question is whatever thay can get the contrast ratio equivalent to DLP projetros ... | ||
| Ben Rating: N/A |
Thank you, M.H., for explaining this. Did you ever try the Canon Realis LCOS projector in a passive 3D setup? If so, how good or bad is it compared to DLPs? | ||
| M.H. Rating: N/A |
Sorry, we dio not have acces to Canon Realis LCOS projetor for testing ... | ||
| r0man Rating: N/A |
I wrote to SilverFabric some time ago, and they answered that LCOS should work with their standard polarizing filters (the same used for DLP), yet they didnt test LCOS projectors yet. | ||
| itsikw Rating: N/A |
A small contribution to this discussion: JVC D-ILA projectors have all kinds of polarizations. Some of them are polarized, some are green-crossed (like LCD) some are linearly polarized and some are circularly polarized. I know one particular model, SX21 to be circularly polarized. This fact makes this projector particularly suitable for 3D projection display. It is possible to make very efficient filters to create a left-right polarized projector pair from two SX21's. |
