发明名称 |
BEAM MISLANDING CORRECTING SYSTEM |
摘要 |
<p>A system for compensating for mislanding of electron beams on the screen of a color cathode ray tube resulting from thermal expansion of a beam selecting structure in the tube which comprises electromagnetic devices provided on the tube for producing respective magnetic fields by means of a current supplied thereto so as to change the paths of the electron beams passing through the beam selecting structure, and a circuit for supplying to the electro-magnetic devices a first correcting current varying substantially in response to changes in the temperature of the beam selecting structure and a second correcting current varying in accordance with a predetermined change in value during the initial period of the operating condition of the tube.</p> |
申请公布号 |
CA1047158(A) |
申请公布日期 |
1979.01.23 |
申请号 |
CA19750229272 |
申请日期 |
1975.06.13 |
申请人 |
SONY CORPORATION |
发明人 |
AWATA, YORIYOSHI;TAKAGAWA, KIYOYUKI |
分类号 |
H01J31/20;H01J29/72;H04N9/28;(IPC1-7):04N9/20 |
主分类号 |
H01J31/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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