JPS6269366U

JPS6269366U -

Info

Publication number: JPS6269366U
Application number: JP16000885U
Authority: JP
Priority date: 1985-10-21
Filing date: 1985-10-21
Publication date: 1987-05-01

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例を示す平面図であ
つて、一部を切欠き、中間部を省略した図、第２
図は、同実施例における陽極及びダミー陽極の部
分拡大縦断面図、第３図は、同実施例において蛍
光体層の電着作業を行つた際の、陽極導体近傍に
おける電着液中での電界分布の一例を示すグラフ
、第４図は、従来の真空蛍光管の製作工程におい
て蛍光体層の電着作業を行つた際の、陽極導体近
傍における電着液中での電界分布の一例を示すグ
ラフ、第５図は、従来の真空蛍光管の一例を示す
平面図であつて、中間部を省略した図、第６図は
、第５図における陽極の部分拡大縦断面図である
。１１……基板、１２……第２制御電極、１３…
…開口部、１４……第１制御電極、１５……開口
部、１６……フイラメント状陰極、ａ２〜ａ９…
…陽極導体、ａ１，ａ１０……ダミー用の陽極導
体、Ｆ２〜Ｆ９……蛍光体層、Ｆ１，Ｆ９……ダ
ミー陽極の蛍光体層、Ａ２〜Ａ９……陽極、Ａ１
，Ａ９……ダミー陽極。 Fig. 1 is a plan view showing one embodiment of the present invention, with a part cut away and the middle part omitted;
The figure is a partially enlarged vertical cross-sectional view of the anode and dummy anode in the same example, and Figure 3 is a partial enlarged longitudinal cross-sectional view of the anode and dummy anode in the same example. Figure 4 is a graph showing an example of the electric field distribution, and shows an example of the electric field distribution in the electrodeposition liquid near the anode conductor during electrodeposition of the phosphor layer in the manufacturing process of a conventional vacuum fluorescent tube. The graph shown in FIG. 5 is a plan view showing an example of a conventional vacuum fluorescent tube, with the middle part omitted, and FIG. 6 is a partially enlarged vertical sectional view of the anode in FIG. 11... Substrate, 12... Second control electrode, 13...
...opening, 14...first control electrode, 15...opening, 16...filament cathode, a2 to a9...
...anode conductor, a1, a10... dummy anode conductor, F2-F9... phosphor layer, F1, F9... dummy anode phosphor layer, A2-A9... anode, A1
, A9...Dummy anode.

Claims

[Claims for Utility Model Registration] (1) An anode formed by coating a phosphor layer on the surface of a plurality of linear anode conductors arranged in parallel on a substrate, and to which a positive voltage is applied when driven; a control electrode having an opening formed in a direction obliquely intersecting the anode conductor and spaced apart above the anode; and a filament-shaped control electrode stretched spaced apart above the control electrode. A vacuum fluorescent tube for printers having a cathode, characterized in that two of the anodes disposed on both outer sides in the arrangement direction are formed as dummy anodes to which no positive voltage is applied during driving. Vacuum fluorescent tube for printers. (2) The vacuum fluorescent tube for a printer according to claim 1, wherein the line width of the anode conductor of the dummy anode is wider than the line width of the other anode conductors.