ALEXANDRIA, Va., June 2 -- United States Patent no. 12,645,021, issued on June 2, was assigned to Nokia Technologies Oy (Espoo, Finland).
"Optical apparatus, modules and devices" was invented by Toni Johan Jarvenpaa (Akaa, Finland).
According to the abstract* released by the U.S. Patent & Trademark Office: "Examples of the disclosure relate to optical apparatus, modules, and devices. Examples of the disclosure relate to an apparatus including a light guide. The light guide includes at least an in-coupling diffractive member configured to in-couple one or more input beams of light into the light guide from a light engine, an expander configured to expand the one or more input beams of light, and an out-coupling diffractive member configure...