发明名称 Shielded cathode ray tube.
摘要 A shielded CRT (18) display includes a secondary shielding enclosure (14) for enclosing the CRT (18) and for inhibiting electromagnetic emissions therefrom. A primary shielded enclosure (12) internal to the secondary shielding ennlosure (14) has a portion coaxial (16) with the neck portion (22) of the CRT (18) for also inhibiting electromagnetic emissions from the CRT (18). The CRT (18) includes an internal conductive layer comprised of an internal aquadag, wire mask, and phosphor coating. This internal conductive layer is grounded via a reactive path to ground to suppress electromagnetic emissions. This double shielding suppression technique eliminates the need for external shielding of the face portion of the CRT (18). <IMAGE>
申请公布号 EP0510568(A1) 申请公布日期 1992.10.28
申请号 EP19920106766 申请日期 1992.04.21
申请人 ALLIANT TECHSYSTEMS INC. 发明人 MCGILL, TERRENCE M.
分类号 H01J29/88;H01J29/86;H04N5/64 主分类号 H01J29/88
代理机构 代理人
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