Image intensifier with two-layer input window

Details Image intensifier with two-layer input window Image intensifier with two-layer input window

1980-01-18

1982-05-25

Willis, Davis L.

Electric lamp and discharge devices

With radioactive material

220 21R, 250213VT, 250369, 313101, 313110, H01J 3500

Patent

active

043318983

ABSTRACT:
In an image intensifier comprising an evacuated envelope which comprises a cylindrical vessel, an input window member airtightly sealed to one end of the vessel, and an output container formed at the other end of the vessel, at least said one end portion of the cylindrical vessel is formed of metal, the input window member has a multilayer structure including an outer thin plate formed of metal weldable to the metal which constitutes at least said one end portion of the cylindrical vessel and an inner thin plate formed of aluminum or aluminum alloy which is thicker than the outer thin plate, the peripheral portion of the inner thin plate is pressure-bonded to an inner portion of a flange at the one end portion of the cylindrical vessel, and the peripheral portion of the outer thin plate extends beyond the peripheral portion of the inner thin plate and is fused with an outer portion of the flange.

REFERENCES:
patent: 3419741 (1968-12-01), Legendre
patent: 4122967 (1978-10-01), Rohrich
patent: 4238043 (1980-12-01), Minami et al.

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