I was actually just thinking about this. We're almost at the point now where you could reasonably package multiple LEDs into a multi-surface package, and do so relatively cost-effectively.

The other side (pun intended) of this problem, though, is that you'd also want to capture imagery from as many perspectives as you planned on reproducing, which is a slightly more involved packaging issue. ;)

You would need to emit at infrared and UV also. As soon as anyone started doing this it would be standard to check things in multiple frequencies.

Then you run into your next problem which is depth perspective which would be off if you're not at the right distance(notice how weird the kids dancing look when they move the camera in close).