JPS52124344A - Mark shading detector - Google Patents

Mark shading detector

Info

Publication number
JPS52124344A
JPS52124344A JP4035476A JP4035476A JPS52124344A JP S52124344 A JPS52124344 A JP S52124344A JP 4035476 A JP4035476 A JP 4035476A JP 4035476 A JP4035476 A JP 4035476A JP S52124344 A JPS52124344 A JP S52124344A
Authority
JP
Japan
Prior art keywords
mark
shading detector
detector
mark shading
shading
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
Application number
JP4035476A
Other languages
Japanese (ja)
Inventor
Shigeo Sasaki
Masashige Aoyama
Kosuke Nakajima
Masanobu Ando
Kaname Tajiri
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 JP4035476A priority Critical patent/JPS52124344A/en
Publication of JPS52124344A publication Critical patent/JPS52124344A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To amplify the differences in shading and improve the accuracy of detection by integrating the outputs from and optical sensor.
COPYRIGHT: (C)1977,JPO&Japio
JP4035476A 1976-04-12 1976-04-12 Mark shading detector Pending JPS52124344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4035476A JPS52124344A (en) 1976-04-12 1976-04-12 Mark shading detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4035476A JPS52124344A (en) 1976-04-12 1976-04-12 Mark shading detector

Publications (1)

Publication Number Publication Date
JPS52124344A true JPS52124344A (en) 1977-10-19

Family

ID=12578285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4035476A Pending JPS52124344A (en) 1976-04-12 1976-04-12 Mark shading detector

Country Status (1)

Country Link
JP (1) JPS52124344A (en)

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