Can night vision cameras see infrared?
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Night vision devices, specifically those based on image intensification technology, cannot directly see infrared (IR) radiation. Night vision devices (like a night vision phone) enhance existing ambient light, including visible light and low levels of infrared light, to provide improved visibility in low-light conditions.
Image intensification night vision devices work by collecting available light through an objective lens. The collected light then passes through an image intensifier tube, which amplifies the light photons. The intensified image is then displayed to the viewer through an eyepiece.
While image intensification night vision can enhance low levels of infrared light that are present in the environment, it cannot detect or display the full spectrum of infrared radiation. These devices primarily rely on the visible light spectrum, and their performance is limited in complete darkness or environments with minimal ambient light.
On the other hand, thermal imaging cameras (such as a thermal imaging phones), which are different from image intensification night vision devices, can detect and visualize infrared radiation. A thermal camera operates based on the detection of heat signatures emitted by objects, rather than amplifying existing light. They are capable of creating images or videos that represent variations in temperature, providing a clear view of objects based on their thermal emissions.
So, while night vision devices can utilize low levels of infrared light present in the environment, they cannot directly see or display the full infrared spectrum. For applications requiring the detection and visualization of infrared radiation, thermal imaging cameras or specialized infrared cameras are more suitable.
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