This already exists: http://lightfield-forum.com/light-field-camera-prototypes/nv... (among others)

Wow, that looks awesome! For something at the demonstration-prototype stage in 2013 I'd have hoped they would have something at least in development by now.

They have a fully working version of it: https://vr.lytro.com/within/hallelujah

Looks awesome, but only an "experience" rather than something you can buy? I guess it would need an ultra-beefy system to run it, and is probably extremely expensive and not supported by much software (yet).

They run it for you - it is a capture service. https://www.lytro.com/immerge#immergeDetails

We're talking about two different things. Hallelujah is interesting because it does light field videography, but what I linked was a light field display.

My top candidate for AR in the longer term is a scanning pico-watt laser which projects the image directly onto your retina.