|
An image intensifier is a device that amplifies light from an image. In some respects a photon acts as a particle for instance the reflection of a picture from flat water. In order to create a picture, a large amount of photons are required to reach the human retina. An image intensifier turns the few photons into electrons and then multiplies the electrons through the microchannel plate and then turns the electrons back into an enhanced picture using a phosfure screan.
Albert Einstein was first to claim that when a photon collides with matter, the photon passes it's energy to an electron.
An image intensifier tube uses that claim, then we multiply the electrons and end with the electrons reaching the phosphor screen.
A microchannel plate consists of a bundle of thousands of tiny glass fibres fused together in parallel, sliced transversely, and polished on both faces. Electrons impinging on one side of the plate tend to travel along the fibres, perpendicular to the plate's faces, thus preserving a coherent image.
|
