JPS5324857A - Thick ness difference detector - Google Patents

Thick ness difference detector

Info

Publication number
JPS5324857A
JPS5324857A JP9818576A JP9818576A JPS5324857A JP S5324857 A JPS5324857 A JP S5324857A JP 9818576 A JP9818576 A JP 9818576A JP 9818576 A JP9818576 A JP 9818576A JP S5324857 A JPS5324857 A JP S5324857A
Authority
JP
Japan
Prior art keywords
difference detector
thick ness
signal
ness difference
thickness difference
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
JP9818576A
Other languages
Japanese (ja)
Other versions
JPS6027925B2 (en
Inventor
Susumu Yamakawa
Yasushi Nakamura
Hideo Osawa
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP51098185A priority Critical patent/JPS6027925B2/en
Publication of JPS5324857A publication Critical patent/JPS5324857A/en
Publication of JPS6027925B2 publication Critical patent/JPS6027925B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To detect the thickness difference patterns by scanning the transmitted light image of the printed matter, which is formed with a thickness difference pattern such as a watermark, to obtain a signal of a preset level and by comparing the scanning signal with the signal of the preset level.
COPYRIGHT: (C)1978,JPO&Japio
JP51098185A 1976-08-19 1976-08-19 Print inspection method Expired JPS6027925B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51098185A JPS6027925B2 (en) 1976-08-19 1976-08-19 Print inspection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51098185A JPS6027925B2 (en) 1976-08-19 1976-08-19 Print inspection method

Publications (2)

Publication Number Publication Date
JPS5324857A true JPS5324857A (en) 1978-03-08
JPS6027925B2 JPS6027925B2 (en) 1985-07-02

Family

ID=14212949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51098185A Expired JPS6027925B2 (en) 1976-08-19 1976-08-19 Print inspection method

Country Status (1)

Country Link
JP (1) JPS6027925B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01245106A (en) * 1988-03-28 1989-09-29 Kanzaki Paper Mfg Co Ltd Inspecting device for sticking paper with peeling sheet

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0317859Y2 (en) * 1987-12-24 1991-04-16

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4969545A (en) * 1972-03-06 1974-07-05

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4969545A (en) * 1972-03-06 1974-07-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01245106A (en) * 1988-03-28 1989-09-29 Kanzaki Paper Mfg Co Ltd Inspecting device for sticking paper with peeling sheet

Also Published As

Publication number Publication date
JPS6027925B2 (en) 1985-07-02

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