Researchers devise a full-color night vision goggle

AI 中文解读

北京理工团队搞出了一种新型夜视镜，最大亮点是能像白天一样看到“全彩”的红外世界。以前的夜视仪只能把红外线变成绿油油的画面，看啥都像老式监控；而这项新技术把不同波长的红外光分别映射成红、绿、蓝等不同颜色，让夜间图像看起来接近自然色彩。原理是用了吸收红外的量子点材料，配合能发光的OLED屏幕，像“翻译官”一样把看不见的光转成看得见的彩色画面。这会给普通人带来什么好处呢？以后夜间出行、户外探险、野生动物观察，甚至安防监控都能看得更清楚、更不费劲——消防员在浓烟里能分辨物体颜色，警察夜里追人不会认错衣服，摄影爱好者也能拍出更有质感的夜景。虽然目前还是实验设备，但一旦缩小成本，未来普通人或许也能戴上这样的“透视眼镜”，夜晚不再是一片模糊和惨绿。

Human eyes don’t register the infrared portion of the light spectrum because infrared photons don't carry enough energy to trigger the signaling pathway inside our light-sensing cells. But we’ve been able to make devices that give us a visual representation of what’s happening in the infrared. A team at the Beijing Institute of Technology, led by Xin Tang and Ge Mu, has now built a device that lets people see infrared in a new way. Instead of just translating it to visible shades of green as it’s done in standard night-vision goggles, it translates different infrared wavelengths into distinct parts of the visual spectrum, giving the eye something closer to natural vision. Researchers achieved that by combining mercury telluride colloidal quantum dots, which absorb infrared light, and a dual-layer OLED, which converts that absorbed energy into visible color. Stacked together with the right internal wiring, they make incoming infrared radiation come out the other side as an ordinary-looking, full-color image.Read full article Comments