Quote:
Originally Posted by AC_Hacker
Thermal Imaging is not the same thing as Infra Red,….. and that is why Thermal Imaging should not be confused with Infra Red imaging.
-AC
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That's my understanding.
Some old video cameras had a "Night-Vision" feature on them. They had an infrared light on the front of the camera, and the camera was sensitive to infra-red light. In that mode, the video camera could see in complete darkness, at least up to the point of whatever the light on the front of the camera could illuminate, which wasn't that far away, because it wasn't a very powerful light.
The video image was typically black-and-white or a green monochrome. But yes, that was infrared lighting, NOT thermal imaging. There were also night vision goggles that worked the exact same way. The big down-side is that if you had an IR light, you were extremely visible to anyone else who had the same type of night vision goggles.
With a lot of video cameras, they can see the wavelength of infrared emitted by a typical infrared remote control. Point your remote into a video camera lens and press the button. Chances are, you will be able to see the infrared LED of the remote light up through the viewfinder.