发明名称 |
Cathode ray tube |
摘要 |
An implosion protection-enhanced cathode ray tube (CRT) includes an evacuated envelope structured from a display panel section, a neck, and a funnel section. The CRT comes with a reinforcing metal band for implosion protection clamped by thermal shrink-fit methods around the outer periphery of the panel. This implosion-protective band may be a metal strip of generally rectangular closed-loop shape. The strip is machined to have bent walls so that it resembles in shape an open-roof dome as a whole. Preferably, the band has its one edge as folded back or "curled" defining a "flip." Upon attachment to the display panel, the band is placed so that the "peak" of each bulged wall is offset in position from a mold match line of the panel toward the CRT neck. With such "band preoffset" feature, the implosion-protective band offers increased locking or clamping forces against the panel thus enhancing the CRT implosion protecting ability.
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申请公布号 |
US6150760(A) |
申请公布日期 |
2000.11.21 |
申请号 |
US19990292608 |
申请日期 |
1999.04.15 |
申请人 |
HITACHI, LTD.;HITACHI DEVICE ENGINEERING CO., LTD. |
发明人 |
TSUCHIYA, YASUMASA;MUROOKA, SHINJI |
分类号 |
H01J29/87;(IPC1-7):H01J23/16 |
主分类号 |
H01J29/87 |
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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