In general, infrared (IR) images are generated based on the temperature distribution of the objects of interest by detecting the thermal IR radiation emitted from these objects with the help of sensors. However, the generation of information-specific IR images can enable “intelligent” entities such as autonomous vehicles and artificial intelligence robots with IR detection features to use IR images for exchanging information. In this context, here, we examine a method of realizing IR-image-based information using IR laser projection. With our approach, two- and three-dimensional IR images could be generated by converting near-IR rays to far-IR rays based on the heat generated by a laser. Importantly, the IR signals do not adversely affect humans or interfere with electronic devices. The proposed IR display can be used to exchange specific information among IR-detection-enabled entities without being detected by the human eye. Therefore, it is expected to overcome the problem of light pollution due to the indiscriminate use of displays and human-health-related problems arising from the exposure to electromagnetic wave-based information transmission.

通常，通过在传感器的帮助下检测从这些物体发出的热IR辐射，基于感兴趣物体的温度分布生成红外（IR）图像。但是，生成特定于信息的IR图像可以使“智能”实体（例如具有IR检测功能的自动驾驶汽车和人工智能机器人）使用IR图像交换信息。在这种情况下，在这里，我们研究一种使用IR激光投影实现基于IR图像的信息的方法。使用我们的方法，可以基于激光产生的热量，通过将近红外射线转换为远红外射线来生成二维和三维红外图像。重要的是，IR信号不会对人体造成不利影响或干扰电子设备。所提出的IR显示器可用于在启用IR检测的实体之间交换特定信息，而无需被人眼检测到。因此，期望克服由于显示器的不加选择的使用引起的光污染问题以及由于暴露于基于电磁波的信息传输而引起的与人类健康有关的问题。