While I see how it works, I'm doubting the claim of better low light performance of a actual camera (which does not exist). The light loss seems to me to merely be moved to a different place. That very tiny diffraction grating is 100% efficient, but light that does not strike it is reflected back and lost while all of the light that strikes a color filter is kept, even if its 50% efficient. How good will the top micro lenses be at focusing all the light on the diffraction grating??