发明名称 |
Shielding means and process for use in the manufacture of tension mask color cathode ray tubes |
摘要 |
Shielding means are disclosed for use in the manufacture of a tension mask color cathode ray tube having a glass faceplate and a substantially rectangular mask support structure having outwardly tapered sides for deflecting a mask-trimming laser beam away from the glass. The shielding means according to the invention are detachably supported by the support structure, or by the faceplate, for bridging only the corner areas of the support structure where the glass is exposed. The shielding means have a configuration effective to intercept the laser beam and shield the glass from the destructive effects of the laser beam. A process for use of the shielding means in manufacture is also disclosed.
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申请公布号 |
US4891028(A) |
申请公布日期 |
1990.01.02 |
申请号 |
US19890336283 |
申请日期 |
1989.04.11 |
申请人 |
ZENITH ELECTRONICS CORPORATION |
发明人 |
KAUTZ, ALLAN D.;STEINER, JOHANN |
分类号 |
B23K26/42;H01J9/14 |
主分类号 |
B23K26/42 |
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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