you should read about PFCAs, they're fucking fascinating. flat camera with no lens that can be fabbed with the same technology we use to make CPUs https://en.wikipedia.org/wiki/Planar_Fourier_capture_array
"angle sensitive pixel" is what each micro-pixel that I spoke about is. https://en.wikipedia.org/wiki/Angle-sensitive_pixel
the article only speaks about it in terms of receiving light, not emitting light. I'm not a physicist but I feel like, maybe it should work both ways?
@cinebox that might be small enough.. the graph here is the same order of magnitude https://en.wikipedia.org/wiki/File:EM_Simulation_of_Light_Interacting_with_an_ASP.gif