Multiple electrode support members with low coefficient of expansion
AssigneeU.S. Philips Corporation
InventorsAntonie Sijtze VAN DER Goot, Peter Hermans
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Abstract
An electron gun assembly for generating a plurality of converging electron beams wherein at least one control electrode is supported eccentrically relative to the tube axis by a supporting member having a coefficient of linear expansion lower than 80.10.sup.-.sup.7 /.degree.C.
Claims4
A color cathode ray tube comprising, in an evacuated envelope, means to generate at least two electron beams, said means comprising a number of electrodes including at least one control electrode having an aperture situated eccentrically relative to the tube axis for passing an electron beam to a convergence point, supporting members for securing said electrodes in a predetermined space relationship and having free ends secured in assembly members consisting of electrically insulating material, the eccentricity of said at least one control electrode aperture being determined by supporting means having a coefficient of linear expansion less than 80.10.sup.-.sup.7 /.degree.C.
Dependencies are inferred from the claim text.