JPS6424387U - - Google Patents
Info
- Publication number
- JPS6424387U JPS6424387U JP12004887U JP12004887U JPS6424387U JP S6424387 U JPS6424387 U JP S6424387U JP 12004887 U JP12004887 U JP 12004887U JP 12004887 U JP12004887 U JP 12004887U JP S6424387 U JPS6424387 U JP S6424387U
- Authority
- JP
- Japan
- Prior art keywords
- hood
- output
- observing
- photo sensor
- comparator
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
第１図は本考案の外部トリガ発生回路の構成を
示すブロツク図、第２図は第１図の各信号の波形
を示す原理説明図、第３図は本考案の使用例を示
す説明図である。
１……出力端子、１１……フード、１２……フ
オトセンサ、１３……増幅器、１４……比較器、
１５……発振器、３１……表示面、３２……フー
ド、３３……外部トリガ発生器、３４……測定器
。
Fig. 1 is a block diagram showing the configuration of the external trigger generation circuit of the present invention, Fig. 2 is a principle explanatory diagram showing the waveforms of each signal in Fig. 1, and Fig. 3 is an explanatory diagram showing an example of the use of the present invention. be. 1...Output terminal, 11...Hood, 12...Photo sensor, 13...Amplifier, 14...Comparator,
15... Oscillator, 31... Display surface, 32... Hood, 33... External trigger generator, 34... Measuring instrument.
Claims (1)
のフードと、フード内の前記表示面の発光状態を
観測するフオトセンサと、フオトセンサ出力を増
幅する増幅器と、増幅器出力から、閾値を越える
ものを検出する比較器と、比較器出力からトリガ
パルスを発生する発振器とを含むことを特徴とす
る、表示装置測定用の外部トリガ発生器。 A hood for observing only a part of the display surface of the display device, a photo sensor for observing the light emitting state of the display surface within the hood, an amplifier for amplifying the photo sensor output, and detecting anything exceeding a threshold from the amplifier output. An external trigger generator for measuring display devices, comprising a comparator and an oscillator that generates a trigger pulse from the comparator output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12004887U JPS6424387U (en) | 1987-08-04 | 1987-08-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12004887U JPS6424387U (en) | 1987-08-04 | 1987-08-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6424387U true JPS6424387U (en) | 1989-02-09 |
Family
ID=31365805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12004887U Pending JPS6424387U (en) | 1987-08-04 | 1987-08-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6424387U (en) |
-
1987
- 1987-08-04 JP JP12004887U patent/JPS6424387U/ja active Pending
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