Thermography
Videos
Infrared thermography, also known as thermal imaging, is a measurement and imaging technique in which a thermal camera detects infrared radiation originating from the surface of objects. This radiatio
Thermogram of a cat
This thermogram shows excessive heating on a terminal in an industrial electrical fuse block.
A thermal image showing temperature variation in a hot air balloon
Thermogram of a snake held by a human
Night-vision device
Videos
A night-vision device, also known as a night optical/observation device or night-vision goggle, is an optoelectronic device that allows visualization of images in low levels of light, improving the us
Thermography
…the measured object must be over 250 °C (482 °F) or be reflecting infrared radiation from something that is at least that hot. Starlight-type night-vision devices generally only magnify ambient light and are not thermal imagers. Some infrared cameras marketed as night vision are sensitive to near-infrared just…
A US Navy aviator uses a pair of helmet-mounted AN/AVS-6 vision goggles. The effect on the natural night vision of the eye is evident
A standard telescopic sight augmented with a night-vision device in front on the M110. Note that in addition to the image intensifier, the NVD gathers much more light by its much larger aperture
A 1PN51-2 night-vision reticle with markings for range estimation
An M16A1 rifle fitted with the AN/PVS-2 Starlight scope