But that aside, what’s in the patent? The main figure in the application (see Figure 1) should already clue you in, if you read my pair of posts about the thankfully failed Holovision Kickstarter project. It’s a volumetric display of some unspecified sort (maybe a non-linear crystal? Or, if that fails, a rotating 2D display? Or “other 3D display technology?” Sure, why be specific! It’s only a patent! I suggest adding “holomatter” or “mass effect field” to the list, just to be sure.), placed inside a double parabolic mirror to create a real image of the volumetric display floating in air above the display assembly. Or, in other words, Project Vermeer. Now, I’m not a patent lawyer, but how Apple continues to file patents on the patently trivial (rounded corners, anyone?), or some exact thing that was shown by Microsoft in 2011, about a year before Apple’s patent was filed, is beyond me.
Figure 1: Main image from Apple’s patent application, showing the unspecified 3D image source (24) located inside the double-parabolic mirror, and the real 3D image of same (32) floating above the mirror. There is also some unspecified optical sensor (16) that may or may not let the user interact with the real 3D image in some unspecified way.
The solution, of course, is simple: instead of having the display and tracking system as separate entities that need to be calibrated with respect to each other, integrate them into the same frame, and pre-calibrate them at the factory. The only thing that had to happen was for a manufacturer to step up to the plate and make it so.