Originally Posted by philiwahnilli
Thanks a lot for the quick reply. Is an internal mounting of the filters a preferable choice to get best results? I mean getting the filters vertically in the light path won't be that hard (I performed a lot of successful device - surgerys).
In any filter configuration, does the back reflected light affect the lamp lifetime in some way? It seems that much light gets back into the projector and must be absorbed somewhere.
Another related thing: Concerning the demultiplexer: e.g. Geobox or Optoma 3D-XL. Is there any trouble with HDCP when watching newer blurays? Do these demuxer have an internal HDCP validation or is this signal forwarded to just one projector? I guess a PC-dual-VGA solution won't work with HDCP, even if the software player does support it!?
your very welcome. back reflection is not an issue and will not damage the lamp or projector, the filters do not reflect IR or thermal energy. these filters will withstand more heat though than the projector itself so internal mounting is ideal if you can do it right. there are some pics on here of someone doing just that. the filters can be unmounted and cut if you so desire i can also sell you some scraps just pm me and ill set something up.
originally these filters were designed for a wheel that was placed at the focal point of an 8000w xenon arc lamp inside cinema projectors so heat, reflection and all that are no issue. i have built many small dual passive rigs now and not had any issues with the reflected light causing any problems.
as far as HDCP the geobox, vip demux and 3d-xl all should have no issue with blueray, a lot on here have been doing just that with all of these. there are HDCP settings in the geobox on a hidden setup menu ive seen so i know this has been setup to run right from a BD player to the projectors. there are some on here who have played BD disks on an HTPC with dual head video cards and the stereoscopic player but you should go to their site and read about it. i believe its 3dtv.at