JPS5444818A - Measuring instrument for pickup dimensions - Google Patents

Measuring instrument for pickup dimensions

Info

Publication number
JPS5444818A
JPS5444818A JP11191177A JP11191177A JPS5444818A JP S5444818 A JPS5444818 A JP S5444818A JP 11191177 A JP11191177 A JP 11191177A JP 11191177 A JP11191177 A JP 11191177A JP S5444818 A JPS5444818 A JP S5444818A
Authority
JP
Japan
Prior art keywords
cursor
brightness
outputs
signal
measurements
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
Application number
JP11191177A
Other languages
Japanese (ja)
Other versions
JPS6145436B2 (en
Inventor
Koji Fujita
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP11191177A priority Critical patent/JPS5444818A/en
Publication of JPS5444818A publication Critical patent/JPS5444818A/en
Publication of JPS6145436B2 publication Critical patent/JPS6145436B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

PURPOSE: To make it possible to attain measurements with extremely high precision and high accuracy by making registration at the optimum cursor brightness, by automatically or manually varying the brightness of the cursor corresponding to the contrast of a detected-body image.
CONSTITUTION: Outputs 103 and 104 of pulse generators MV1 and MV2 cause pulse generators MV3 and MV4 using monostable multivibrators to operate to generates outputs 106 and 107, whose pulse width corresponds to the bright-line width of cursors 3 and 4, and they are mixed MX1 and then outputted to gate GT2. The output of this gate GT2 is supplied to inversion circuit IV2, which outputs signal 112 of the opposite polarity to cursor signal 111, and potentiometer R3 outputs final cursor signal 113. Namely, the cursor brightness is varied manually or automatically corresponding to the contrast of a detected body and the registration is done at the optimum cursor brightness, so that measurements can be done with extremely high precision and high accuracy.
COPYRIGHT: (C)1979,JPO&Japio
JP11191177A 1977-09-16 1977-09-16 Measuring instrument for pickup dimensions Granted JPS5444818A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11191177A JPS5444818A (en) 1977-09-16 1977-09-16 Measuring instrument for pickup dimensions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11191177A JPS5444818A (en) 1977-09-16 1977-09-16 Measuring instrument for pickup dimensions

Publications (2)

Publication Number Publication Date
JPS5444818A true JPS5444818A (en) 1979-04-09
JPS6145436B2 JPS6145436B2 (en) 1986-10-08

Family

ID=14573201

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11191177A Granted JPS5444818A (en) 1977-09-16 1977-09-16 Measuring instrument for pickup dimensions

Country Status (1)

Country Link
JP (1) JPS5444818A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816981U (en) * 1981-07-23 1983-02-02 株式会社東芝 ITV equipment
JPS6363906A (en) * 1986-09-04 1988-03-22 Dainippon Screen Mfg Co Ltd Length measuring apparatus
JPH01203908A (en) * 1988-02-10 1989-08-16 Keioo Denshi Kogyo Kk Size measuring instrument

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5019382A (en) * 1973-06-21 1975-02-28
JPS50120738A (en) * 1974-03-08 1975-09-22

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5019382A (en) * 1973-06-21 1975-02-28
JPS50120738A (en) * 1974-03-08 1975-09-22

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816981U (en) * 1981-07-23 1983-02-02 株式会社東芝 ITV equipment
JPS6363906A (en) * 1986-09-04 1988-03-22 Dainippon Screen Mfg Co Ltd Length measuring apparatus
JPH01203908A (en) * 1988-02-10 1989-08-16 Keioo Denshi Kogyo Kk Size measuring instrument

Also Published As

Publication number Publication date
JPS6145436B2 (en) 1986-10-08

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