Full-color night vision goggle sees infrared in natural hues

Researchers at the Beijing Institute of Technology have built a full-color night-vision goggle that translates different infrared wavelengths into distinct visible colors, moving beyond the monochrome green of conventional devices. The team, led by Xin Tang and Ge Mu, published their findings in Science Advances on July 31, 2026, with the DOI 10.1126/sciadv.aed0245. The device combines mercury telluride colloidal quantum dots with a dual-layer OLED to produce a color image that encodes both the wavelength and intensity of incoming infrared light. This approach could allow users to distinguish infrared power differences roughly 200 times smaller than with brightness-only designs, according to the study. The eyeglass is semi-transparent, weighs 23 grams, and has an active viewing area of about 3.57 square centimeters. In tests, it projected sharp, color-coded images of objects illuminated with shortwave infrared light, while still letting ordinary visible light pass through. The team also demonstrated that the upconverted infrared light triggered photocurrents in cells expressing channelrhodopsin-2, and produced electroencephalogram responses in mice and electroretinogram responses in human volunteers when they viewed the device's display under infrared pulses. The authors claim the work "redefined infrared vision" by "transcending the monochrome paradigm" and could pave the way to "next generation visual prosthetics." However, the demonstrations occurred under controlled conditions with simple test patterns, and the OLED requires an external power supply. The paper does not address long-term safety or biocompatibility of the mercury telluride material, and implantable applications remain supported only by isolated neuron, EEG, and ERG data, leaving several steps before practical night-vision glasses or retinal implants are achievable.