Method for manufacturing electrodes of electron gun for cathode ray tube and electrodes manufactured thereby

An electrode of an electron gun for a cathode ray tube having:

• a first electrode member having beam passing holes the circumferential portion of which has a predetermined thickness, and gas exhaust holes;
• and
• a second electrode member having a flat portion which has through holes formed to be larger than the beam passing holes and another gas exhaust holes formed to be larger than the gas exhaust holes, a side portion perpendicularly extended from the peripheral portion of the flat portion, and embedded portions perpendicularly extended from the side portion;
• wherein the electrode members are aligned for the beam passing holes and gas exhaust holes of the first electrode member to respectively correspond to the through holes and gas exhaust holes of the second electrode member, and the electrode members are welded to each other.

A method for manufacturing electrodes of an electron gun for a cathode ray tube comprising the steps of:

• forming a first electrode member as a flat element with a set of beam passing holes and a first set of gas exhaust holes created therein;
• forming a second electrode member having
• a flat portion with a set of through holes and a second set of gas exhaust holes, the through holes of the second electrode member being larger than the beam passing holes of the first electrode member,
• a side portion perpendicularly extending from a peripheral portion of the flat portion, and
• embedded portions perpendicularly extending from the side portion;
• forming a third electrode member as another flat element with another set of through holes and a third set of gas exhaust holes;
• aligning the electrode members, with the third electrode member positioned between the first and second electrode members, for the beam passing holes and gas exhaust holes of the first electrode member to respectively correspond to the through holes and gas exhaust holes of the third and second electrode members;
• and
• welding the electrode members to each other.

A method for manufacturing electrodes of an electron gun for a cathode ray tube comprising the steps of:

• forming first and second electrode members each having a flat portion with a set of gas exhaust holes created therein, a side portion perpendicularly extending from a peripheral portion of the flat portion, and embedded portions perpendicularly extending from the side portion, wherein the flat portions of the first and second electrode members further comprise a set of beam passing holes and a set of through holes, respectively, and the through holes of the second electrode member are larger than the beam passing holes of the first electrode member;
• aligning the first and second electrode members, with the embedded portions of the first and second electrode members axially spaced from each other, for the beam passing holes and gas exhaust holes of the first electrode member to respectively correspond to the through holes and gas exhaust holes of the third and second electrode members;
• and
• welding the first and second electrode members to each other.