OK - so now that our test projector is equipped with our fancy new polarised filter and is outputting gorgeous circularly polarised light beamz, it's time to throw up the glasses into said light path, and read the tea leaves, err shadows, cast upon the canvas which we calleth our screen!
Again, I was VERY surprised at how much light passed through the setup. Very PLEASANTLY surprised. You are going to mess yourself when you see how transparent these lenses are in the below pictures.
In fact, you may be even more excited when you notice how much light was occluded (blocked) by the appropriate filter in the glasses (particularly with the RealD pair).
After all, this is EXACTLY what we want! LOTS of light passing through one lens, with just about ALL the light blocked from the other lens.
However, after opening a couple of pictures, your going to become confused and come back to read the rest of what I am saying here
After all, why the heck has rdjam posted pictures of the glasses in both the "normal" (horizontal) position - AS WELL AS this "wierd-as-hell" sidways (vertical) orientation????
The answer seems pretty self-evident to me - these glasses are manufactured for polarised projector systems that are based on a VERTICALLY polarised light source. As such, their performance, as illustrated below, is severely compromised when held or worn at the "proper" position on your nose. But when oriented sideways, as if for spidermonleys from Mars, their performance is superb.
Right off the bat, that means we are going to have to look a little harder for an off-the-shelf pair of glasses that is set up for a horizontally polarised system, or at worst, may have to custom build our own from sheets of polariser film. Neither of these is a deal-breaker in my view.
Now, moving on - you will also notice that the performance of the RealD glasses is significantly better than the MicroVision glasses, as evidenced by the higher light pass-thru on one lens, and MUCH darker image thru the other lens.
In the images below, the order is as follows: (1) RealD in "normal" (worst) orientation (2) RealD in Vertical (best) orientation (3) MicroVision in "normal (worst) position (4) Microvision in "vertical" (better) position (5) MicroVision in "halfway" (best) position...
I'm very impressed with the RealD glasses - ideally, I'd want to track down the manufacturer of the film used in these. More on that later...
In our next section, we cover the biggest disappointment of the night - the performance of my pride-and-joy BDII screen...