US Patent Issued to 3M Innovative Properties on June 10 for "Optical system" (Minnesota Inventor)

ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,555, issued on June 10, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Optical system" was invented by Timothy L. Wong (St. Paul, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Optical systems including a reflective polarizer are described. The reflective polarizer includes first and second reflection zones, such that for light substantially normally incident on the reflective polarizer, the first zone substantially reflects light in a first wavelength range and substantially transmits light in a different non-overlapping second wavelength range, and the second zone substantially reflects light in the second wavelength range ...