US Patent Issued to 3M Innovative Properties on April 1 for "Reflective polarizer and optical system" (Chinese, American Inventors)

ALEXANDRIA, Va., April 2 -- United States Patent no. 12,265,242, issued on April 1, was assigned to 3M Innovative Properties Co. (St. Paul, Minn.).

"Reflective polarizer and optical system" was invented by Fuguo Xu (Shanghai), Adam D. Haag (Woodbury, Minn.), Martin E. Denker (Vadnais Heights, Minn.) and Timothy J. Nevitt (Red Wing, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An optical system (200) includes an emissive display (220) and a reflective polarizer (100) disposed on the display (220). The display (220) includes a blue pixel (222b) emitting light having a peak at a wavelength Lambdab. For substantially normally incident light: for the wavelength Lambdab, the reflective polarizer (100) refl...