US Patent Issued to Robert Bosch on Jan. 20 for "Method for producing a holographic optical element, control device and exposure device" (German Inventors)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,529,996, issued on Jan. 20, was assigned to Robert Bosch GmbH (Stuttgart, Germany).

"Method for producing a holographic optical element, control device and exposure device" was invented by Tobias Wilm (Heimsheim, Germany), Johannes Hofmann (Tuebingen, Germany) and Reinhold Fiess (Durbach, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for producing a holographic optical element. The method includes a step of exposing a recording material to a phase pattern which is provided by a first modulated light beam with a first phase portion. Furthermore, the method includes a step of an additional exposure of the recording material to the phase ...