JPS596367U

JPS596367U - Convergence characteristic measuring device

Info

Publication number: JPS596367U
Application number: JP10083182U
Authority: JP
Inventors: 喬菅原
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1982-07-02
Filing date: 1982-07-02
Publication date: 1984-01-17

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。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図ａはコンバーゼンス特性測定装置のブロック図、
同図すはコンバーゼンス特性測定時の映出パターンを表
わす図、第２図ａおよび同図すは゛コンバーゼンス特性
測定時の誤差の生じる原因の説明図、第３図はこの考案
のコンバーゼンス特性測定装置における映像信号発生部
のブロック図、第４図はリミッタの説明図、第５図ａは
パルス発生部で発生される信号の説明図、同図すおよび
同図Ｃはリミッタ通過後の信号の説明図である。１・・・カラー陰極線管、２・・・偏向ヨーク、３・・
・電源、４・・・電子銃、５・・・映像信号発生部、６
・・・縦線、７・・・横線、１２・・・シャドウマスク
、５２・・・パルス発生部、５３・・・リミッタ、５４
・・・測定部、９１・・・信号波形の立上り部、９２・
・・信号波形の立下がり部。なお、図中、同一符号は同
一または相当部分を示す。Figure 1a is a block diagram of the convergence characteristic measuring device,
This figure is a diagram showing the projection pattern during convergence characteristic measurement, Figures 2a and 2A are explanatory diagrams of the causes of errors during convergence characteristic measurement, and Figure 3 is an illustration of the convergence characteristic measuring device of this invention. A block diagram of the video signal generating section, FIG. 4 is an explanatory diagram of the limiter, FIG. 5 a is an explanatory diagram of the signal generated in the pulse generating section, and FIG. It is. 1...Color cathode ray tube, 2...Deflection yoke, 3...
・Power supply, 4...Electron gun, 5...Video signal generator, 6
...Vertical line, 7...Horizontal line, 12...Shadow mask, 52...Pulse generator, 53...Limiter, 54
... Measuring section, 91... Rising part of signal waveform, 92.
...Falling edge of the signal waveform. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A shadow mask color cathode ray tube having an electron gun in its neck, a deflection yoke attached to the neck of the shadow mask color cathode ray tube, and an electron beam emitted from the electron gun by passing a current through the deflection yoke. A power supply for performing two-dimensional scanning in the vertical and horizontal directions;
In a convergence characteristic measuring device comprising a video signal generating section that projects a vertical line pattern on the shadow mask type color cathode ray tube in synchronization with dimensional scanning, the video signal generating section is connected to a horizontal synchronizing signal and a predetermined signal. A pulse generator that generates a pulse that has a phase relationship, has a finite rising portion and a falling portion, and has an equal slope; What is claimed is: 1. A convergence characteristic measuring device comprising: a limiter that limits at 100 nm, and a measuring section that measures the phase of a horizontal synchronizing signal and a video signal.