This presentation covers all what is important about night vision. Night vision is the technology which has enabled humans to see during the night. Night vision is mainly used for military purposes. The PPT was designed as a part of Cambridge IGCSE ICT syllabus
2. Some animals, like leopards, can see during the
night (without/less light).
Humans don’t have any such capability.
For this, we have night vision technology.
This technology was first invented by Germans
during World War.
3. Night vision
Amplification
increases the visible light, and
makes it bright enough for our
eyes to see
Infrared
Images are created with the
help of light and heat
4. In this technology, infrared and visible light are
amplified to produce image at darkness.
5. The dim light source is captured.
The light is passed through an image intensifier tube.
The intensifier tube converts the light into electrons
These electrons are amplified to produce more
electrons than the original ones.
All these electrons then hit a phosphor dot screen at
the end of the tube, the screen glows, and a clear
image is produced.
