ALEXANDRIA, Va., May 5 -- United States Patent no. 12,619,070, issued on May 5, was assigned to Envisics Ltd (Milton Keynes, Great Britain).

"Hologram waveguiding" was invented by Jamieson Christmas (Milton Keynes, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A projection system comprising a display device, a hologram engine and a waveguide. The display device is arranged to display a hologram of an image and spatially modulate light in accordance with the hologram to form a holographic wavefront. The hologram engine is arranged to calculate the hologram. The hologram is arranged to angularly distribute light within the holographic wavefront in accordance with spatial position within the imag...