JPS59144471U - 陰極線管の焦点制御装置 - Google Patents
陰極線管の焦点制御装置Info
- Publication number
- JPS59144471U JPS59144471U JP1983038524U JP3852483U JPS59144471U JP S59144471 U JPS59144471 U JP S59144471U JP 1983038524 U JP1983038524 U JP 1983038524U JP 3852483 U JP3852483 U JP 3852483U JP S59144471 U JPS59144471 U JP S59144471U
- Authority
- JP
- Japan
- Prior art keywords
- ray tube
- cathode ray
- focus control
- control device
- voltage source
- 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.)
- Granted
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
- H01J29/58—Arrangements for focusing or reflecting ray or beam
- H01J29/62—Electrostatic lenses
- H01J29/626—Electrostatic lenses producing fields exhibiting periodic axial symmetry, e.g. multipolar fields
- H01J29/628—Electrostatic lenses producing fields exhibiting periodic axial symmetry, e.g. multipolar fields co-operating with or closely associated to an electron gun
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/26—Modifications of scanning arrangements to improve focusing
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Details Of Television Scanning (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
め要約のデータは記録されません。
Description
′ 第1図は従来の焦点制御回路図、第2図は本考案に
係る焦点制御回路の原理を説明するための簡単な回路図
、第3図は4極電子レンズを有する陰極線管に本考案を
応用した実例を示す回路図である。 10′ :陰極線管(CRT)、70:焦点制御電圧源
、72:非点収差制御電圧源、74. 76:増幅器、
R2:接続手段(抵抗器)。
係る焦点制御回路の原理を説明するための簡単な回路図
、第3図は4極電子レンズを有する陰極線管に本考案を
応用した実例を示す回路図である。 10′ :陰極線管(CRT)、70:焦点制御電圧源
、72:非点収差制御電圧源、74. 76:増幅器、
R2:接続手段(抵抗器)。
Claims (3)
- (1)独立して制御可能な焦点制御及び非点収差制御電
圧源と、該2電圧源からの制御電圧を夫々増幅する1対
の増幅器と、上記非点収差制御電圧源の出力を増幅する
増幅器の入力端に上記焦点制御電圧源の出力端を接続す
る接続手段とを具えた陰極線管の焦点制御装置。 - (2)上記1対の増幅器は夫々、入力及び帰還抵抗器を
有する演算増幅器である特許請求の範囲第1項に記載の
陰極線管の焦点制御装置。 - (3)上記陰極線管の焦点及び非点収差制御電極は4極
電子レンズである特許請求の範囲第1項に記載の陰極線
管の焦点制御装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1983038524U JPS59144471U (ja) | 1983-03-18 | 1983-03-18 | 陰極線管の焦点制御装置 |
US06/576,239 US4529915A (en) | 1983-03-18 | 1984-02-02 | CRT Focus control circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1983038524U JPS59144471U (ja) | 1983-03-18 | 1983-03-18 | 陰極線管の焦点制御装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59144471U true JPS59144471U (ja) | 1984-09-27 |
JPH0446308Y2 JPH0446308Y2 (ja) | 1992-10-30 |
Family
ID=12527659
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1983038524U Granted JPS59144471U (ja) | 1983-03-18 | 1983-03-18 | 陰極線管の焦点制御装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US4529915A (ja) |
JP (1) | JPS59144471U (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040099385A (ko) * | 2002-04-04 | 2004-11-26 | 톰슨 라이센싱 에스.에이. | 포커스 마스크용 다이나믹 포커스 전압 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49102779U (ja) * | 1972-12-22 | 1974-09-04 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3961223A (en) * | 1975-03-04 | 1976-06-01 | United Technologies Corporation | Astigmatic focus correction circuit |
US4162403A (en) * | 1978-07-26 | 1979-07-24 | Advanced Metals Research Corp. | Method and means for compensating for charge carrier beam astigmatism |
US4249112A (en) * | 1979-09-18 | 1981-02-03 | Tektronix, Inc. | Dynamic focus and astigmatism correction circuit |
-
1983
- 1983-03-18 JP JP1983038524U patent/JPS59144471U/ja active Granted
-
1984
- 1984-02-02 US US06/576,239 patent/US4529915A/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49102779U (ja) * | 1972-12-22 | 1974-09-04 |
Also Published As
Publication number | Publication date |
---|---|
US4529915A (en) | 1985-07-16 |
JPH0446308Y2 (ja) | 1992-10-30 |
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