CATHODE RAY TUBE

摘要

PROBLEM TO BE SOLVED: To solve a problem that a magnetic field spurting from an electron shield distorts an electron beam and has an adverse effect on landing, in a cathode ray tube comprising a mask frame and/or an electron shield mounted on an internal magnetic shield against halation. SOLUTION: A notched and folded folding riser portion 9 or a welded riser portion 10 with a magnetic metal material welded thereto is formed along the length of an electron shield 8 or a mask shield 5 to cause a magnetic field to spurt in a direction for offsetting a force received from earth magnetism of an electron beam 7.