7 Foot Wide Triple Screen Fresnel Lens Display for $220.
I just finished a prototype which turned out so well I thought I'd share some details.
It uses 3x19 inch monitors magnified by Fresnel lenses to give a near-seamless 135° FOV. The lenses fool the eye into believing the image is approximately 7 feet wide and farther away than it actually is; more like what eyes are used to focusing on in real life.
It can be built for a little over $200 including the cost of cheap second hand 19" LCD monitors (plentiful in most areas). Here's a link to the lens I used: http://bhlens.com/product_detail.aspx?pid=34
The overall weight is only a few pounds (plus monitors); easily made lighter by detaching the monitor stands and hard-mounting, and the compactness delivers the small moment of inertia important for motion simulators.Please note
: I am in no way promoting the use of the wooden table structure for a motion platform
That's just something I whipped together in a couple hours for proof of concept of what's above it.
Now, I never normally get sick playing video games. However, the overall effect of this design is so immersive
that I got quite motion sick and nauseous for the first few hours of trying iRacing with it. I think that means it's working
My explanation of this is that the eyes and brain get completely convinced you really are in that virtual space, but there are no motion cues to go with it as you zip around the track (i.e. inner ear sensations), which it normally expects to receive. Thankfully, you get get used to it with time (at least I did), and are left with what I think is an amazing experience. The videos below don't do this justice.Technical Details:
The side lenses/monitors are angled 45° inward and each monitor is about 19cm behind its respective lens. This gives a roughly 1.7x magnification equivalent to a 31" monitor. My viewing position is roughly at the perpendicular intersection of all three lens centers. Overall resolution is 3840x1024. Each monitor is 1280x1024 and is a 5:4 ratio,19" diagonal in size. I would not recommend using anything over 20", nor any of the widescreen 16:9 monitor types as they are not suitable for the lenses which are 40x32cm. The 5:4 x3 ratio is perfect as you also get a nice vertical FOV too. Overall, the 19" size is perfect for this application. I recommend trying to find three with very similar image & color qualities, if possible.
I'm sure this concept is nothing new to motion rig builders, but I sure don't see many people doing it. Not sure why.... highly recommended!
One lap in iRacing:http://youtu.be/kOMREPZNYwM