发明授权
- 专利标题： Color picture tube with rectangular hall shadow mask
- 专利标题（中）： 彩色图像管，带矩形HALL SHADOW MASK
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申请号： US3633058D申请日： 1970-01-21
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公开(公告)号： US3633058A公开(公告)日： 1972-01-04
- 发明人: KOUNO AKIYOSHI
- 申请人： NIPPON ELECTRIC CO
- 专利权人： Nippon Electric Co
- 当前专利权人： Nippon Electric Co
- 优先权： JP515969 1969-01-24
- 主分类号： H01J29/07
- IPC分类号： H01J29/07 ; H01J29/32 ; H01J29/06 ; H01J31/20
摘要：
A cathode-ray tube for displaying colored images comprises an in-line three-element gun and a shadow mask. The shadow mask has formed therein a plurality of rectangular holes arranged in an orderly manner in rows and columns. The dimensions and spacing of the rectangular holes is selected to provide for optimum transmission of the electron beams to the screen, while still providing mechanical strength for the shadow mask.
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