Compact image intensifier tube and night vision system fitted with such a tube
AssigneePhotonis France
InventorsGert Nutzel, Leo Pierre, Matthieu Feuerstein, Carlo Kaiser, Pascal Lavoute
Life of this patent
Estimating the term…
Abstract
An image intensifier tube and a night vision system fitted with such a tube. The tube body of the image intensifier tube includes a multilayer ceramic substrate fixed in a sealed manner to an input device and to an output device so as to assure leaktightness of a vacuum chamber delimited by the tube body. The multilayer substrate also maintains a microchannel plate arranged between a photocathode and a phosphorus screen, and supplies voltage to the photocathode, the plate, and the phosphorus screen.
Claims23
1-22. (canceled)
An image intensifier tube for receiving photons from an external environment and outputting a visible image, comprising:
- a tube body delimiting a vacuum chamber, closed in a sealed manner at a first end by an input device of an incident light signal and a second end opposite the first end along the axial direction of the tube by a light signal output device;
- a photocathode arranged on an internal surface of the input device, that receives photons to generate photoelectrons;
- multiplying means for receiving the photoelectrons to output secondary electrons in response thereto;
- a phosphorus screen arranged on an internal surface of the output device and receiving the secondary electrons to provide a visible image in response thereto;
- and
- a multilayer ceramic substrate fixed in a sealed manner to the input device and to the output device, on which the multiplying means are fixed, and adapted to bring the multiplying means to different electrical potentials.
Dependencies are inferred from the claim text.