JPS6424584A - Convergence device - Google Patents
Convergence deviceInfo
- Publication number
- JPS6424584A JPS6424584A JP62180452A JP18045287A JPS6424584A JP S6424584 A JPS6424584 A JP S6424584A JP 62180452 A JP62180452 A JP 62180452A JP 18045287 A JP18045287 A JP 18045287A JP S6424584 A JPS6424584 A JP S6424584A
- Authority
- JP
- Japan
- Prior art keywords
- screen
- detected
- detector
- convergence
- pattern signal
- 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
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
PURPOSE:To detect a static color slippage with a simple circuit constitution and with good accuracy without providing a detector on a screen and to automatically execute the static convergence correction by converging the light of a pattern signal by the optical system to set a pattern signal reflected on the screen at the position away from the screen. CONSTITUTION:By lenses 32 and 33 to provide pattern signals 34 and 35 reflected on a screen 20 at a position away from the screen, the light of a pattern signal is converged, and for the light of the converged pattern signal, the dislocation is detected by detectors 30 and 31 composed of an one- dimensional photoelectric converting element, the detecting signal is supplied to a position detector 36, the dislocation quantity to a reference position is detected, and a convergence correcting circuit 38 is controlled by the detecting signal. Thus, since a display screen and a detector can be divided, detection can be executed without providing the detector on the screen, respective parts of the screen can be detected, the convergence dislocation of a central part can be detected with good accuracy and the fluctuation of the static convergence can be automatically adjusted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62180452A JPS6424584A (en) | 1987-07-20 | 1987-07-20 | Convergence device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62180452A JPS6424584A (en) | 1987-07-20 | 1987-07-20 | Convergence device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6424584A true JPS6424584A (en) | 1989-01-26 |
Family
ID=16083474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62180452A Pending JPS6424584A (en) | 1987-07-20 | 1987-07-20 | Convergence device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6424584A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146279A (en) * | 1991-09-10 | 1992-09-08 | Xerox Corporation | Active airflow system for development apparatus |
US5531826A (en) * | 1993-10-12 | 1996-07-02 | Freund Industrial Co., Ltd. | Granular material coating apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59104884A (en) * | 1982-12-08 | 1984-06-16 | Matsushita Electric Ind Co Ltd | Automatic static convergence adjusting device |
-
1987
- 1987-07-20 JP JP62180452A patent/JPS6424584A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59104884A (en) * | 1982-12-08 | 1984-06-16 | Matsushita Electric Ind Co Ltd | Automatic static convergence adjusting device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5146279A (en) * | 1991-09-10 | 1992-09-08 | Xerox Corporation | Active airflow system for development apparatus |
US5531826A (en) * | 1993-10-12 | 1996-07-02 | Freund Industrial Co., Ltd. | Granular material coating apparatus |
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