ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,736,469, issued on Sept. 15, was assigned to FUJIFILM Corp. (Tokyo).

"Optical element and optical sensor" was invented by Yukito Saitoh (Minamiashigara, Japan) and Hiroshi Sato (Minamiashigara, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are an optical element that causes a guided-mode resonance phenomenon to occur using a liquid crystal diffraction element to reflect light in a specific wavelength range such that the reflection wavelength range can be widened and the controllability of the width of the reflection wavelength range is also excellent, and an optical sensor including the above-described optical element. The optical eleme...