JPS56166469A - Detector for sheet carrying speed - Google Patents

Detector for sheet carrying speed

Info

Publication number
JPS56166469A
JPS56166469A JP7032580A JP7032580A JPS56166469A JP S56166469 A JPS56166469 A JP S56166469A JP 7032580 A JP7032580 A JP 7032580A JP 7032580 A JP7032580 A JP 7032580A JP S56166469 A JPS56166469 A JP S56166469A
Authority
JP
Japan
Prior art keywords
light
sheet
glossy surfaces
change
passage
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
JP7032580A
Other languages
English (en)
Inventor
Kenta Watase
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP7032580A priority Critical patent/JPS56166469A/ja
Publication of JPS56166469A publication Critical patent/JPS56166469A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
    • G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/171—Physical features of handled article or web
    • B65H2701/1712—Transparent

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
JP7032580A 1980-05-27 1980-05-27 Detector for sheet carrying speed Pending JPS56166469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7032580A JPS56166469A (en) 1980-05-27 1980-05-27 Detector for sheet carrying speed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7032580A JPS56166469A (en) 1980-05-27 1980-05-27 Detector for sheet carrying speed

Publications (1)

Publication Number Publication Date
JPS56166469A true JPS56166469A (en) 1981-12-21

Family

ID=13428171

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7032580A Pending JPS56166469A (en) 1980-05-27 1980-05-27 Detector for sheet carrying speed

Country Status (1)

Country Link
JP (1) JPS56166469A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6217220A (ja) * 1985-07-15 1987-01-26 Ohbayashigumi Ltd ドレ−ン材の残置確認方法およびその装置
JP2011127990A (ja) * 2009-12-17 2011-06-30 Canon Inc 速度検出装置
US9116163B2 (en) 2010-09-16 2015-08-25 Canon Kabushiki Kaisha Displacement measuring apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6217220A (ja) * 1985-07-15 1987-01-26 Ohbayashigumi Ltd ドレ−ン材の残置確認方法およびその装置
JP2011127990A (ja) * 2009-12-17 2011-06-30 Canon Inc 速度検出装置
US8805022B2 (en) 2009-12-17 2014-08-12 Canon Kabushiki Kaisha Velocity detection apparatus having two detectors
US9116163B2 (en) 2010-09-16 2015-08-25 Canon Kabushiki Kaisha Displacement measuring apparatus

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