JPS5397337A - Optical information reader - Google Patents

Optical information reader

Info

Publication number
JPS5397337A
JPS5397337A JP1195777A JP1195777A JPS5397337A JP S5397337 A JPS5397337 A JP S5397337A JP 1195777 A JP1195777 A JP 1195777A JP 1195777 A JP1195777 A JP 1195777A JP S5397337 A JPS5397337 A JP S5397337A
Authority
JP
Japan
Prior art keywords
optical information
information reader
regular reflection
featuring
pencil
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
JP1195777A
Other languages
Japanese (ja)
Inventor
Yukio Sakano
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 JP1195777A priority Critical patent/JPS5397337A/en
Publication of JPS5397337A publication Critical patent/JPS5397337A/en
Pending legal-status Critical Current

Links

Landscapes

  • Image Input (AREA)
  • Optical Head (AREA)

Abstract

PURPOSE: To ensure an accurate reading of the marks, etc. written by the pencil featuring the regular reflection properties, by selecting the positional relation between the projector, receiver and slit so that the orthogonal projection onto the surface to be read may not be on the same line and then eliminating the effect of the regular reflection light caused by the mirror surface.
COPYRIGHT: (C)1978,JPO&Japio
JP1195777A 1977-02-05 1977-02-05 Optical information reader Pending JPS5397337A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1195777A JPS5397337A (en) 1977-02-05 1977-02-05 Optical information reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1195777A JPS5397337A (en) 1977-02-05 1977-02-05 Optical information reader

Publications (1)

Publication Number Publication Date
JPS5397337A true JPS5397337A (en) 1978-08-25

Family

ID=11792088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1195777A Pending JPS5397337A (en) 1977-02-05 1977-02-05 Optical information reader

Country Status (1)

Country Link
JP (1) JPS5397337A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155054U (en) * 1982-04-07 1983-10-17 マツダ機電株式会社 Mark reading device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155054U (en) * 1982-04-07 1983-10-17 マツダ機電株式会社 Mark reading device
JPS635082Y2 (en) * 1982-04-07 1988-02-10

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