JPS6454236A - Marking detection - Google Patents

Marking detection

Info

Publication number
JPS6454236A
JPS6454236A JP62211807A JP21180787A JPS6454236A JP S6454236 A JPS6454236 A JP S6454236A JP 62211807 A JP62211807 A JP 62211807A JP 21180787 A JP21180787 A JP 21180787A JP S6454236 A JPS6454236 A JP S6454236A
Authority
JP
Japan
Prior art keywords
sheet
projector
marking
light
light receiver
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
JP62211807A
Other languages
Japanese (ja)
Inventor
Hiroshi Himeno
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.)
Kanzaki Paper Manufacturing Co Ltd
Original Assignee
Kanzaki Paper Manufacturing 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 Kanzaki Paper Manufacturing Co Ltd filed Critical Kanzaki Paper Manufacturing Co Ltd
Priority to JP62211807A priority Critical patent/JPS6454236A/en
Publication of JPS6454236A publication Critical patent/JPS6454236A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

PURPOSE:To enable detection of a marking simply and accurately without missing it attached to a side end of a sheet, by irradiating the sheet with an auxiliary projector provided on the opposite side to a light receiver through the sheet from the undersurface thereof. CONSTITUTION:A sheet 2 unwound from a wound sheet 1 runs continuously in the direction of the arrow. A projector 4 and a light receiver 5 of a reflection type marking detector 3 is arranged above the sheet and a marking is detected depending on changes in the reflection factor and reflection optical axis and the like at a marking point. An auxiliary projector 6 is so set below the sheet that a part of light therefrom 6 irradiates the undersurface of the sheet while a part thereof is incident directly into the light receiver. The auxiliary projector is so arranged to select a light source and the position thereof that intensity of illumination of light irradiating at a fixed level from the upper projector is the same as that immediately after reflected on the top surface of the sheet running.
JP62211807A 1987-08-25 1987-08-25 Marking detection Pending JPS6454236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62211807A JPS6454236A (en) 1987-08-25 1987-08-25 Marking detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62211807A JPS6454236A (en) 1987-08-25 1987-08-25 Marking detection

Publications (1)

Publication Number Publication Date
JPS6454236A true JPS6454236A (en) 1989-03-01

Family

ID=16611924

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62211807A Pending JPS6454236A (en) 1987-08-25 1987-08-25 Marking detection

Country Status (1)

Country Link
JP (1) JPS6454236A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100826710B1 (en) * 2006-12-20 2008-04-30 엘지전자 주식회사 Heating cooking appliance and burner system of the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100826710B1 (en) * 2006-12-20 2008-04-30 엘지전자 주식회사 Heating cooking appliance and burner system of the same

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