ACTIVE DEVICE FOR VIEWING A SCENE THROUGH A DIFFUSING MEDIUM, USE OF SAID DEVICE, AND VIEWING METHOD

摘要

The present invention relates to an active device (10) for viewing a scene, comprising a light source (12) suitable for emitting electromagnetic radiation toward the scene to be viewed. The device (10) also includes a detector (14), and is configured to activate said detector so as to measure at least a portion of the electromagnetic radiation emitted by said light source and returned by the viewed scene. The electromagnetic radiation emitted by the light source (12) is infrared radiation at least partially included within a spectral band, referred to as an viewing band, the wavelengths of which are between 8 micrometers and 15 micrometers, and the detector (14) is suitable for measuring infrared radiation within said viewing band. Such an active viewing device (10) is particularly suitable for viewing in foggy weather or in rainy weather. The present invention also relates to a viewing method (50).