ELECTRON GUN OF CATHODE-RAY TUBE
PROBLEM TO BE SOLVED: To prevent mixing of a foreign matter inside an electron gun, and to prevent the deterioration in a withstand voltage characteristic of a cathode- ray tube in the electron gun provided, for example, in a neck part of the color cathode-ray tube. SOLUTION: Foreign matter mixing p...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PROBLEM TO BE SOLVED: To prevent mixing of a foreign matter inside an electron gun, and to prevent the deterioration in a withstand voltage characteristic of a cathode- ray tube in the electron gun provided, for example, in a neck part of the color cathode-ray tube. SOLUTION: Foreign matter mixing preventive walls 8f and 8g for preventing the mixing of the foreign matter are arranged in an electron beam passing hole 8c of a convergence cup 11 in the electron gun 2 of the cathode-ray tube. |
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