JPS5638730A - Removing method of electron emitting material - Google Patents

Removing method of electron emitting material

Info

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
Application number
JP11385979A
Other languages
Japanese (ja)
Inventor
Yoshikazu Yamane
Toshiteru Tomita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NIPPON DENKI SYLVANIA KK
NEC Home Electronics Ltd
Original Assignee
NIPPON DENKI SYLVANIA KK
NEC Home Electronics Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NIPPON DENKI SYLVANIA KK, NEC Home Electronics Ltd filed Critical NIPPON DENKI SYLVANIA KK
Priority to JP11385979A priority Critical patent/JPS5638730A/en
Publication of JPS5638730A publication Critical patent/JPS5638730A/en
Pending legal-status Critical Current

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

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.
JP11385979A 1979-09-04 1979-09-04 Removing method of electron emitting material Pending JPS5638730A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504626A (en) * 1982-09-23 1985-03-12 General Electric Company Polycarbonate resin mixtures

Citations (1)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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