ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,532, issued on Oct. 28, was assigned to ROBERT BOSCH GMBH (Stuttgart, Germany).
"Device and method for manufacturing holographic optical elements" was invented by Johannes Hofmann (Tuebingen, Germany) and Reinhold Fiess (Durbach, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device and a method for manufacturing holographic optical elements. The device includes at least two partial light beams and one interference light beam, one deformable mirror in each case per partial light beam, a control unit, which is configured to actuate the deformable mirrors to adapt a wavefront of the partial light beam, and a holographic film. The deformable ...