I think one of the major challenges designing the Pimax 8K is to develop a sophisticated lens design that deals with the slightly tilted screens setup to project a natural feeling image to the eyes.
Correcting the image via lenses only is surely the first obvious approach one could investigate in but is it really the right/smart way to do it?
How about this method:
Each display is arranged in a Wheatstone configuration (this means they are face to face) and angled mirrors redirect the images towards the lenses?
This is actually the exact same design invented by Charles Wheatstone in the 19th century but applied to digital media.
Well I know this suggestions comes in way way to late to be picked up and taken seriously. What I want to know is if this approach is actually a better way to do it? It would be cool if some knowledgble people in this area could discribe their point of view with regards to overall feasibilty, 200° FOV problems that might arise etc.
Btw this approach got picked up by a company called “Cinera” which developed a very awesome Virtual Home Theather headset you can check out here: http://cinera.net/
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Interesting. The site you linked says the Cinera:
offer a stunning field of view of 66 degrees.
Well for movie watching purposes its actually stunning. The Sony HMZ or Royole Moon for comparison have 45° which feels by no means small.
The really cool thing is that Cinera has a Pixel per Degree (PPD) ratio of 39. Which discribes the percieved overall sharpnesses of the image. Rift has 11,5 PPD…Vive has 9,8 PPD.
A recent post showed an hmd which uses polarization to seperate left & right eyes. 1 screen faces you the other is reflect from top over the left image.
The lenses are polarized. Neat thing with this idea is a different binocular overlap method. Maybe more natural.
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That’s an interesting approach, but the FOV would have to be fairly limited.
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That particular one of course was standard FoV.
I’m no engineer, but it seems to me that the FOV is really what would hold any other technique, like this one, back. Apart from a single full size curved display going the entire way across the headset; but that’s the ultimate goal for in like 5 years or such 
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The design of the DJI FPV goggles and the Expanse HMD use a mirror/beam splitter so that each eye sees the entire screen.
The DJI has a per eye FOV of 85 degrees. I think Pimax could use a design like that for a revamped 4k.
Im actually thinking of building my own at this point.
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