Luckey's most significant criticism of the Lightwear headset is that the company appears to have no such technology, despite its claims and promises over the years. In a summary, he says:
"The supposed 'Photonic Lightfield Chips' are just waveguides paired with reflective sequential-color LCOS displays and LED illumination, the same technology everyone else has been using for years, including Microsoft in their last-gen HoloLens. The ML1 is a not a 'lightfield projector' or display by any broadly accepted definition, and as a Bi-Focal Display, only solves vergence-accommodation conflict in contrived demos that put all UI and environmental elements at one of two focus planes. Mismatch occurs at all other depths. In much the same way, a broken clock displays the correct time twice a day."
Display technology expert Karl Guttag also says that Magic Leap has been taking liberties with what it describes as "digital lightfield" technology: “A true light field projector/display approximates the light rays that would pass through a plane. It would allow the eye to focus various depths in the scene and if the eye moves it could see around objects that are hidden behind other objects without any eye tracking.”
Examples of true light field displays include the FOVI3D and Nvidia’s Near-Eye Light Field Display, both of whom have shared extensive video and technical explanations of how the technology works.
See the full story here: https://www.wired.co.uk/article/magic-leap-one-palmer-luckey