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image différée - traduction vers Anglais

VACUUM TUBE DEVICE FOR INCREASING THE INTENSITY OF AVAILABLE LIGHT
Image intensifiers; Image intensification; Image intensifier tube; Image amplifier
  • Photons from a low-light source enter the objective lens (on the left) and strike the photocathode (gray plate). The photocathode (which is negatively biased) releases electrons which are accelerated to the higher-voltage microchannel plate (red). Each electron causes multiple electrons to be released from the microchannel plate. The electrons are drawn to the higher-voltage phosphor screen (green). Electrons that strike the phosphor screen cause the phosphor to produce photons of light viewable through the eyepiece lenses.

image différée      
n. afterimage
image matricielle         
n. raster image, bit map image, picture depicted by pixels of different colors
image raster      
raster image, bit map image, picture depicted by pixels of different colors

Définition

image intensifier
¦ noun a device used to make a brighter version of an image on a photoelectric screen.

Wikipédia

Image intensifier

An image intensifier or image intensifier tube is a vacuum tube device for increasing the intensity of available light in an optical system to allow use under low-light conditions, such as at night, to facilitate visual imaging of low-light processes, such as fluorescence of materials in X-rays or gamma rays (X-ray image intensifier), or for conversion of non-visible light sources, such as near-infrared or short wave infrared to visible. They operate by converting photons of light into electrons, amplifying the electrons (usually with a microchannel plate), and then converting the amplified electrons back into photons for viewing. They are used in devices such as night-vision goggles.