KR930024042A - Heater of electron gun for cathode ray tube - Google Patents

Heater of electron gun for cathode ray tube Download PDF

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Publication number
KR930024042A
KR930024042A KR1019920008068A KR920008068A KR930024042A KR 930024042 A KR930024042 A KR 930024042A KR 1019920008068 A KR1019920008068 A KR 1019920008068A KR 920008068 A KR920008068 A KR 920008068A KR 930024042 A KR930024042 A KR 930024042A
Authority
KR
South Korea
Prior art keywords
heater
electron gun
insulating film
ray tube
cathode ray
Prior art date
Application number
KR1019920008068A
Other languages
Korean (ko)
Other versions
KR950001077B1 (en
Inventor
박공석
Original Assignee
이헌조
주식회사 금성사
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 이헌조, 주식회사 금성사 filed Critical 이헌조
Priority to KR1019920008068A priority Critical patent/KR950001077B1/en
Publication of KR930024042A publication Critical patent/KR930024042A/en
Application granted granted Critical
Publication of KR950001077B1 publication Critical patent/KR950001077B1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
    • H01J1/22—Heaters

Abstract

본 발명은 히터에 코팅되는 절연막의 강도를 증대시켜 전기적, 열적 및 외부 충격시 절연막의 파손 발생율을 줄이는데 적합한 전자총의 히터에 관한 것으로, 맨드릴선에 발열선이 감김된 발연부를 갖는 히터 표면에 절연막이 형성된 것에 있어서, 절연막 전착시 ø2.0 ∼3.0㎛의 알루미나 입경을 갖는 전착액을 사용, 전착한 후 소결처리하여 200∼300g의 소결강도를 갖게 한 음극선관용 전자총의 히터에 관한 기술이다.The present invention relates to a heater of an electron gun suitable for increasing the strength of the insulating film coated on the heater to reduce the breakage rate of the insulating film during electrical, thermal and external impact, wherein the insulating film is formed on the heater surface having a smoke section wound around the heating wire The present invention relates to a heater for an electron gun for a cathode ray tube, in which an electrodeposition liquid having an alumina particle diameter of? 2.0 to 3.0 µm is used for electrodeposition, followed by sintering to give a sintering strength of 200 to 300 g.

Description

음극선관용 전자총의 히터Heater of electron gun for cathode ray tube

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제5도는 본 발명의 알루미나 입도를 나타낸 현미경 사진.5 is a micrograph showing the alumina particle size of the present invention.

Claims (2)

맨드릴선에 발열선이 감겨진 히터 표면에 입경크기가ø2.0 ∼3.0㎛인 알루미나로 된 절연막의 형성되어 이루어짐을 특징으로 하는 음극 선관용 전자총 히터.An electron gun heater for a cathode ray tube, characterized in that an insulating film made of alumina having a particle size of ø2.0 to 3.0 μm is formed on a heater surface on which a heating wire is wound on a mandrel wire. 제1항에 있어서, 히터 표면에 1차 절연막과 2차 절연막이 형성되고 그 상층부에 입경크기가 ø2.0 ∼3.0㎛인 알루미나로 된 절연막이 형성되어 이루어짐을 특징으로 하는 음극선관용 전자총 히터.The electron gun heater for cathode ray tube according to claim 1, wherein a primary insulating film and a secondary insulating film are formed on the heater surface, and an insulating film made of alumina having a particle size of ø2.0 to 3.0 mu m is formed on the upper layer. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920008068A 1992-05-13 1992-05-13 Heater of electron gun for crt KR950001077B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920008068A KR950001077B1 (en) 1992-05-13 1992-05-13 Heater of electron gun for crt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920008068A KR950001077B1 (en) 1992-05-13 1992-05-13 Heater of electron gun for crt

Publications (2)

Publication Number Publication Date
KR930024042A true KR930024042A (en) 1993-12-21
KR950001077B1 KR950001077B1 (en) 1995-02-08

Family

ID=19333026

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920008068A KR950001077B1 (en) 1992-05-13 1992-05-13 Heater of electron gun for crt

Country Status (1)

Country Link
KR (1) KR950001077B1 (en)

Also Published As

Publication number Publication date
KR950001077B1 (en) 1995-02-08

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