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This is a much better (IMO)approach by Nvidia: http://www.fudzilla.com/news/graphics/39762-nvidia-shows-off...

If I'm understanding things, that only has two focal planes. They mention the approach of just having several focal planes in the video.

They time-multiplex the two planes (switching the displays on and off quickly). Amazingly, the brain interprets it as a 3rd, or 4th, or 5th, plane!

This Facebook optic uses the same technique.

No that's not accurate. The brain may not be able to distinguish the two focal planes but it's just wrong to say "the brain interprets it as a 3rd, or 4th or 5th plane".

And this Facebook technique clearly doesn't use the same technique. Instead of a focal plane they have a focal surface that isn't restricted to a plane. It might not be noticeably better (who knows) but it's definitely not the same technique.

Yes that seems so. Must be for cost reasons, I initially thought the new system was like the one they demoed in 2013 (http://lightfield-forum.com/light-field-camera-prototypes/nv...), much more like the Lytro light field camera in approatch. So yes as already said, same idea as Oculus.

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