Night vision photograph of man next to tree. This image was obtained using an image intensifier in very low light conditions. Image intensifiers use t


Night vision photograph of man next to tree. This image was obtained using an image intensifier in very low light conditions. Image intensifiers use the visible spectrum Âand a small part of the near infrared for detection. The incoming photons strike a photo cathode which produces an electron emission. The electrons are then amplified using a micro-channel plate and then focused onto a luminescent screen via an electron lens. This screen reconverts the electron signal into light which is bright enough to observe.


Size: 5289px × 4144px
Photo credit: © Science Photo Library / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: adult, darkness, green, human, image, intensifier, male, man, military, monochrome, night, people, person, photography, science, scientific, sight, technique, techniques, technological, technology, tree, vision