发明授权
US5663609A Electron gun assembly having a quadruple lens for a color cathode ray
tube
失效
具有用于彩色阴极射线管的四重透镜的电子枪组件
- 专利标题: Electron gun assembly having a quadruple lens for a color cathode ray tube
- 专利标题(中): 具有用于彩色阴极射线管的四重透镜的电子枪组件
-
申请号: US530731申请日: 1995-09-19
-
公开(公告)号: US5663609A公开(公告)日: 1997-09-02
- 发明人: Eiji Kamohara , Junichi Kimiya
- 申请人: Eiji Kamohara , Junichi Kimiya
- 申请人地址: JPX Kawasaki
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JPX Kawasaki
- 优先权: JPX4-089170 19920410
- 主分类号: H01J29/48
- IPC分类号: H01J29/48 ; H01J29/50 ; H01J29/51 ; H01J29/62 ; H01J29/58
摘要:
A color cathode ray tube apparatus is provided with an electron gun assembly. In the electron gun assembly, three electron beams, which are emitted from cathodes of an in-line arrangement, are accelerated and converged onto a phosphor screen by an electron lens system of the electron gun assembly. The electron lens system is constituted by a plurality of grid electrodes and includes individual electron lenses and a common electron lens. Each of the individual electron lenses has first and second lens powers in horizontal and vertical planes, respectively. Each of the electron beams is diverged in the horizontal plane and converged in the vertical plane by the corresponding individual electron lens due to the first and second lens powers. The common electron lens has third and forth lens powers in the horizontal and vertical planes, respectively. The electron beams from the individual electron lenses are converged in the horizontal plane by the common electron lens due to the third lens power and each of the electron beams diverged by the common electron lens due to the fourth lens power.
公开/授权文献
- USD328994S Corner wall book shelf 公开/授权日:1992-09-01