JPH0164847U - - Google Patents
Info
- Publication number
- JPH0164847U JPH0164847U JP1987160362U JP16036287U JPH0164847U JP H0164847 U JPH0164847 U JP H0164847U JP 1987160362 U JP1987160362 U JP 1987160362U JP 16036287 U JP16036287 U JP 16036287U JP H0164847 U JPH0164847 U JP H0164847U
- Authority
- JP
- Japan
- Prior art keywords
- thermionic
- cathode filament
- amount
- conductor solid
- grid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004020 conductor Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 2
- 230000001133 acceleration Effects 0.000 claims 2
- 230000005855 radiation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
Landscapes
- Discharge Lamps And Accessories Thereof (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Description
第１図および第２図は本考案の一実施例におけ
る蛍光管の平面説明図および部分拡大平面図、第
３図は本考案の他の実施例における蛍光管の平面
説明図、第４図および第５図は一般の蛍光管の分
解斜視図および横断面図、第６図および第７図は
カソードフイラメントに印加される電位分布およ
びそれぞれに対応する蛍光体の輝度を示す線図、
第８図は熱電子放出量の分布を表わした線図であ
る。
１……ガラス基板、２……アノード電極、３…
…蛍光体、７……カソードフイラメント、１５…
…グリツド、１７，２７……導体中実部。
1 and 2 are an explanatory plan view and a partially enlarged plan view of a fluorescent tube in one embodiment of the present invention, FIG. 3 is an explanatory plan view of a fluorescent tube in another embodiment of the present invention, and FIG. FIG. 5 is an exploded perspective view and cross-sectional view of a general fluorescent tube, and FIGS. 6 and 7 are diagrams showing the potential distribution applied to the cathode filament and the brightness of the phosphor corresponding to each.
FIG. 8 is a diagram showing the distribution of the thermionic emission amount. 1...Glass substrate, 2...Anode electrode, 3...
...phosphor, 7... cathode filament, 15...
...Grid, 17, 27...Conductor solid part.
Claims (1)
ントと基板上に多数配列されたドツト状の蛍光体
との間に、上記カソードフイラメントから放出さ
れる熱電子を加速し蛍光体側への到達量を制御す
るグリツドを配置するようにした蛍光管において
、上記グリツドは、カソードフイラメント長手方
向に延在する導体中実部を備えているとともに、
この導体中実部は、カソードフイラメント長手方
向の熱電子放出量分布に対応した熱電子加速制御
機能を備えるように設置されてなり、上記導体中
実部により、グリツドの熱電子加速制御機能が、
カソードフイラメントの熱電子放出量の小さい中
央側部分で大きくなるように設定され、かつ熱電
子放出量の大きい両端側部分で小さくなるように
設定されていることを特徴とする蛍光管。 ２ グリツドは、蛍光体を両側から挟むように設
けられているとともに、導体中実部は、両グリツ
ドの蛍光体側に近接される端縁部分に配置され、
該導体中実部の形成幅は、カソードフイラメント
の熱電子放出量の小さい中央側部分で広くとられ
、かつ熱電子放出量の大きい両端側部分で狹くと
られるように形成されていることを特徴とする特
許請求の範囲第１項記載の蛍光管。[Claims for Utility Model Registration] 1. Accelerating thermionic electrons emitted from the cathode filament between a long cathode filament stretched in a tube and a large number of dot-shaped phosphors arranged on a substrate. In a fluorescent tube in which a grid is arranged to control the amount of radiation reaching the phosphor side, the grid has a conductor solid portion extending in the longitudinal direction of the cathode filament, and
This conductor solid part is installed to have a thermionic acceleration control function corresponding to the thermionic emission distribution in the longitudinal direction of the cathode filament, and the conductor solid part allows the thermionic acceleration control function of the grid to be
1. A fluorescent tube characterized in that the cathode filament is set to be large at the central portion where the amount of thermionic emission is small and to be set to be small at both end side portions where the amount of thermionic emission is large. 2. The grids are provided so as to sandwich the phosphor from both sides, and the conductor solid portions are arranged at the edge portions of both grids that are close to the phosphor side,
The width of the conductor solid portion is wide at the central portion of the cathode filament, where the amount of thermionic emissions is small, and narrower at both end portions where the amount of thermionic emissions is large. A fluorescent tube according to claim 1, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160362U JPH0164847U (en) | 1987-10-20 | 1987-10-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987160362U JPH0164847U (en) | 1987-10-20 | 1987-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0164847U true JPH0164847U (en) | 1989-04-26 |
Family
ID=31442363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987160362U Pending JPH0164847U (en) | 1987-10-20 | 1987-10-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0164847U (en) |
-
1987
- 1987-10-20 JP JP1987160362U patent/JPH0164847U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0164847U (en) | ||
| JP2577361Y2 (en) | Electron emitting device and image display device using the electron emitting device | |
| JP2723667B2 (en) | Planar electron emission device | |
| JPH0162646U (en) | ||
| JPH0313661U (en) | ||
| JPS63179650U (en) | ||
| JPH0458946U (en) | ||
| JPH0435341U (en) | ||
| JPS63150456U (en) | ||
| JPH1064409A (en) | Cathode structure of electron gun for cathode ray tube | |
| JPS6218951U (en) | ||
| JPS62169452U (en) | ||
| JPH0232650U (en) | ||
| JPH0164846U (en) | ||
| JPS6148555U (en) | ||
| JPS63109436U (en) | ||
| JPS58169653U (en) | Cathode ray tube for light source | |
| JPH01172253U (en) | ||
| JPS60840U (en) | Electron gun structure | |
| JPS642352U (en) | ||
| JPH0160340U (en) | ||
| JPS63202060U (en) | ||
| JPH0316653U (en) | ||
| JPS58169652U (en) | Cathode ray tube for light source | |
| JPS61133962U (en) |