US Patent Issued to Carl Zeiss Jena on Aug. 18 for "Projection unit comprising a volume hologram having a volume grating, and projection device having a projection unit" (German Inventor)

ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,710,651, issued on Aug. 18, was assigned to Carl Zeiss Jena GmbH (Jena, Germany).

"Projection unit comprising a volume hologram having a volume grating, and projection device having a projection unit" was invented by Daniel Thomae (Jena, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A projection unit images a multi-color image having a first and a second wavelength into an exit pupil such that an observer can perceive said image as a virtual image when an eye of the observer is positioned in the exit pupil and the observer views the projection unit at a predefined angle of observation. Each volume grating of the projection unit has a deflection...