基本信息:
- 专利标题： Projection tube having different neck diameters
- 专利标题（中）：具有不同颈径的投影管
- 申请号：US10636795 申请日：2003-08-07
- 公开(公告)号：US20040027043A1 公开(公告)日：2004-02-12
- 发明人： Kouichi Saitou , Kazumasa Hirai , Tetsuo Asano , Kotaro Aoki , Yasuo Tanaka
- 优先权： JP2001-159789 20010529
- 主分类号： H01J029/00
- IPC分类号： H01J029/00
摘要：
The present invention aims at maintaining the high focusing performance at a low deflection power in a single-beam projection tube which is used as a projection type TV receiver or a projector and is operated at a high voltage and with a high current. The neck outer diameter of a portion on which a deflection yoke is mounted is made smaller than the neck outer diameter of a portion which accommodates an electron gun. The maximum anode voltage of the projection tube is set to equal to or more than 25 kV and the maximum beam current is set to equal to or more than 4 mA
摘要（中）：
本发明旨在在用作投影型TV接收机或投影仪并且以高电流和高电流操作的单束投影管中保持低偏转功率的高聚焦性能。 安装有偏转线圈的部分的颈部外径比容纳电子枪的部分的颈部外径小。 投影管的最大阳极电压被设定为等于或大于25kV，最大光束电流被设定为等于或大于4mA
公开/授权文献:
- US07075221B2 Projection tube having different neck diameters 公开/授权日：2006-07-11