Stereoscopic imaging
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The Project (2012)

Years on from building my first projection rig,  technology has moved on; we are now in a world where 3D TV sets are common place, digital projectors are being produced for high definition (HD) media and 3D Blu-ray disks are being produced in high volume; thanks to films like AVATAR.

Over the last few years I have provided well over sixty 3D presentations to both photography and video groups. During this time, I developed a need to get away from using a computer to drive my projectors. This need was inspired by developments taking place with 3D capable Blu-ray players and 3D media players, along with the need to avoid the constraints imposed by computers and their operating systems.

I first needed to upgrade my projectors to ones that took full advantage of HD and HDMI connectivity.  To cut a long story short, I came up with the solution shown in the schematic Figure 1.

The the two projector, Optoma HD200X models are HD with a native resolution of 1920 x 1080.  The are mounted on a framework constructed from 20 mm square section aluminium tube a plastic joints, care of B&Q. Figure 2. with adjustable platforms.   

I have a range of devices that connect to the projectors via HDMI.  The devices are interchangeable with the necessary wiring in place for all.  In Figure 3. we can see the rear connections involved.  

A HiMedia HD 900B media player is seen in Figure 4.  This device has a replaceable HDD, Figure 5, which makes it easy to transfer content from my PC to the media player.  The player also takes SD cards and other USB connected storage devices, including a secondary portable hard drive if required.  The firmware provided with the player uses the Android 4 operating system and can be wirelessly connected to other devices.

The rear panel connections of the player includes those for phono and optical audio. Figure 6.  These are used to connect a self-powered speaker system, presently Creative T40 pair.

A Mede8er MED600X 3D is a valid alternative to the HiMedia device, both require support from an HDMI splitter and two Demultiplexers, Figure 7., to sort out the left and right video streams.  Both devices will work with half width side-by-side, above and below or frame packed (MVC) source material.

A Samsung 3D Blu-ray disk player is used for playing commercial and home produced 3D Blu-ray disks. Figure 8.

3D Projection