JPS5638730A - Removing method of electron emitting material - Google Patents
Removing method of electron emitting materialInfo
- Publication number
- JPS5638730A JPS5638730A JP11385979A JP11385979A JPS5638730A JP S5638730 A JPS5638730 A JP S5638730A JP 11385979 A JP11385979 A JP 11385979A JP 11385979 A JP11385979 A JP 11385979A JP S5638730 A JPS5638730 A JP S5638730A
- Authority
- JP
- Japan
- Prior art keywords
- electron emitting
- emitting material
- suction port
- filament coil
- attraction
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/02—Manufacture of electrodes or electrode systems
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
PURPOSE:To obtain a stable force of attraction for an electron emitting material and eliminate the variation of its residual amount, by adequately determining the opening area of a suction port to a dust collector that attracts and removes the electron emitting material. CONSTITUTION:To a filament coil 3 an electron emitting material 4 is applied. In the vicinity of the filament coil 3 a suction port 6 is arranged, and the attraction of a dust collector 9 causes unnecessary electron emitting materials to be collected to a collection tank 7. An opening area of the suction port 6 is designated as 7-40cm<2>. The suction port 6 is constituted with its variable area in accordance with the size of the filament coil 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11385979A JPS5638730A (en) | 1979-09-04 | 1979-09-04 | Removing method of electron emitting material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11385979A JPS5638730A (en) | 1979-09-04 | 1979-09-04 | Removing method of electron emitting material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5638730A true JPS5638730A (en) | 1981-04-14 |
Family
ID=14622862
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11385979A Pending JPS5638730A (en) | 1979-09-04 | 1979-09-04 | Removing method of electron emitting material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5638730A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4504626A (en) * | 1982-09-23 | 1985-03-12 | General Electric Company | Polycarbonate resin mixtures |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53140873A (en) * | 1977-05-13 | 1978-12-08 | Toshiba Corp | Method of coating electrode coil for bulb with cathod material |
-
1979
- 1979-09-04 JP JP11385979A patent/JPS5638730A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53140873A (en) * | 1977-05-13 | 1978-12-08 | Toshiba Corp | Method of coating electrode coil for bulb with cathod material |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4504626A (en) * | 1982-09-23 | 1985-03-12 | General Electric Company | Polycarbonate resin mixtures |
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