KR900008603A - 칼라 디스플레이 튜브용 전자총 - Google Patents
칼라 디스플레이 튜브용 전자총 Download PDFInfo
- Publication number
- KR900008603A KR900008603A KR1019880015938A KR880015938A KR900008603A KR 900008603 A KR900008603 A KR 900008603A KR 1019880015938 A KR1019880015938 A KR 1019880015938A KR 880015938 A KR880015938 A KR 880015938A KR 900008603 A KR900008603 A KR 900008603A
- Authority
- KR
- South Korea
- Prior art keywords
- electron gun
- color display
- electron beam
- electrode system
- display tubes
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/46—Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement
- H01J29/56—Arrangements for controlling cross-section of ray or beam; Arrangements for correcting aberration of beam, e.g. due to lenses
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
- G11B15/46—Controlling, regulating, or indicating speed
- G11B15/467—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven
- G11B15/473—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads
- G11B15/4731—Controlling, regulating, or indicating speed in arrangements for recording or reproducing wherein both record carriers and heads are driven by controlling the speed of the heads control of headwheel rotation
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
- G11B15/02—Control of operating function, e.g. switching from recording to reproducing
- G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
- G11B15/14—Masking or switching periodically, e.g. of rotating heads
Abstract
내용 없음.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제5도는 본 발명에 의한 칼라 디스플레이 튜브용 전자총의 동작하지 않는 상태에서 캐소드와 전자빔 형성 영역을 화대하여 보인 단면도.
Claims (1)
- 복수개의 캐소드, 전자빔 형성영역 전극계, 적어도 하나 이상의 정전집속 렌즈 전극계를 갖는칼라 디스플레이 튜브용 전자총에 있어서, 전자총이 동작하지 않는때를 기준하여 주정전 집속렌즈 전극계의 제1가속 및 집속전극(5)와 제2가속 및 집속전극(6)의 전자빔 통과공 사이의 거리 (S)와, 전자빔 형성영역 전극계의 제1그리드 전극(23)과 제2그리드 전극 (24) 각각의 전자빔 통과공 사이의 거리(Sc) (Sd) 가 Sc<SdS를 만족하도톡 선정 형성되어, 전자총이 동작할때 히터 (1) (1′) (1″)의 가열에 의하여 제1그리드 전극(23), 제2그리드 전극(24) 순서로 팽창하여 Sc=Sd=S가 되는 것임을 특징으로 하는 칼라 디스플레이 튜브용 전자총.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019880015938A KR930005877B1 (ko) | 1988-11-30 | 1988-11-30 | 칼라 디스플레이 튜브용 전자총 |
US07/412,842 US5119245A (en) | 1988-09-29 | 1989-09-26 | Rotational phase detecting apparatus for head drum utilizing video heads |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019880015938A KR930005877B1 (ko) | 1988-11-30 | 1988-11-30 | 칼라 디스플레이 튜브용 전자총 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900008603A true KR900008603A (ko) | 1990-06-04 |
KR930005877B1 KR930005877B1 (ko) | 1993-06-25 |
Family
ID=19279782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880015938A KR930005877B1 (ko) | 1988-09-29 | 1988-11-30 | 칼라 디스플레이 튜브용 전자총 |
Country Status (2)
Country | Link |
---|---|
US (1) | US5119245A (ko) |
KR (1) | KR930005877B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3086768B2 (ja) * | 1993-06-30 | 2000-09-11 | 株式会社東芝 | 磁気記録再生装置用増幅回路 |
CN1068449C (zh) * | 1996-01-17 | 2001-07-11 | 三星电子株式会社 | 磁带记录设备的磁头位置检测装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4318142A (en) * | 1978-03-23 | 1982-03-02 | Ampex Corporation | Automatically compensated movable head servo circuit and method |
DE3606091A1 (de) * | 1986-02-26 | 1987-08-27 | Thomson Brandt Gmbh | Geraet, insbesondere videorecorder |
-
1988
- 1988-11-30 KR KR1019880015938A patent/KR930005877B1/ko not_active IP Right Cessation
-
1989
- 1989-09-26 US US07/412,842 patent/US5119245A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
KR930005877B1 (ko) | 1993-06-25 |
US5119245A (en) | 1992-06-02 |
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