ALEXANDRIA, Va., July 14 -- United States Patent no. 12,680,879, issued on July 14, was assigned to FLIR Systems AB (Taby, Sweden).

"Warm filter configuration for reducing effects of reflected infrared radiation systems and methods" was invented by Sten Lindau (Taby, Sweden) and Austin A. Richards (Santa Barbara, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Various techniques are disclosed to reduce the effect of reflected infrared radiation on cooled thermal imaging systems. In one example, a system includes an integrated dewar cooler assembly (IDCA) configured to maintain an interior volume at a constant temperature. The system also includes a thermal imager disposed within the interior volume and...