Researchers devise a full-color night vision goggle

Researchers at the Beijing Institute of Technology have built night-vision goggles that show infrared light in full color, rather than the standard single-color green. Using mercury telluride quantum dots and a dual-layer OLED, the device translates different infrared wavelengths into distinct visible colors, making it roughly 200 times more sensitive than traditional designs. The lightweight 23-gram prototype worked in tests but still faces real-world challenges, including the need for an external power supply and unresolved safety concerns around mercury telluride.