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Electrostatic lens for image intensifier tube

Electrostatic lens for image intensifier tube function is to focus on the electron beam. The constituent portion refers to an electric field region composed of a photocathode, a focusing electrode, an auxiliary anode, an anode, and the like.
Image intensifier output screen:

12 inch image intensifier application
The effect is to convert the enhanced electronic image into a visible image.
The composition is composed of an aluminum foil, a phosphor layer, and a glass layer. The glass layer is part of the image intensifier housing and is the support for the output screen.
Phosphor layer: It is coated on the glass layer with ZnGds (Ag); its function is to receive electrons to produce strong visible light.
Aluminum foil: after being located in the phosphor layer, the thickness is about 0.5 um or less, and is connected to the anode; in order to change the edge sharpness, the output screen of the phenomenon is concave.

Author:Alina


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