Electron gun for a cathode ray tube with electrical conductors welded to bracket base, and cathode ray tube provided with such a gun
AssigneeKoninklijke Philips Electronics N.V.
InventorArnoldus Hubertus Maria Van Eck
Life of this patent
Estimating the term…
Abstract
An electron gun (1) for use in a cathode ray tube has brackets (20) connecting grids (2, 3, 4, 5, 6) to insulator rods (10). Electric conductors (11) extending to contact pins (12) embedded in a glass flange (13) are welded to a base (21) of the brackets (20). Legs (25) extend from the base (21) and are welded to the grids (2, 3, 4, 5, 6). Lugs (26) extend from the base (21) in opposite directions and are embedded in the glass rods (10). The brackets (20) provides stability to the grids (2, 3, 4, 5, 6), thereby preventing varying properties of guns (1) from one batch. The cathode ray tube is provided with the gun (1).
Claims8
An electron gun for a cathode ray tube comprising:
- bush-shaped grids, each having a bottom wall and, extending therefrom, a circumferential lateral wall, the grids being arranged in a row having a longitudinal direction l, with the bottom walls transverse to the row;
- insulator rods extending in the longitudinal direction l of the row and alongside the row, said insulator rods maintaining the grids positioned with respect to each other;
- metal brackets having a base and juxtaposed legs on sides of the base, the legs of each said bracket being welded to the lateral wall of a respective one of the bush-shaped grids and being embedded in a respective one of the insulator rods by means of lugs extending from the brackets, said lugs facing away from the respective legs,
- the base of each of the brackets extending as far as the side of the respective insulator rod, and electric conductors being welded to the bases and electrically connected to contact pins embedded in an insulating flange.
Dependencies are inferred from the claim text.