ZA838895B - A process for reading relief marking on a product - Google Patents

A process for reading relief marking on a product

Info

Publication number
ZA838895B
ZA838895B ZA838895A ZA838895A ZA838895B ZA 838895 B ZA838895 B ZA 838895B ZA 838895 A ZA838895 A ZA 838895A ZA 838895 A ZA838895 A ZA 838895A ZA 838895 B ZA838895 B ZA 838895B
Authority
ZA
South Africa
Prior art keywords
photosensitive means
spot
light beam
coded message
reading
Prior art date
Application number
ZA838895A
Inventor
Thierry Jurret
Frederic Grein
Gerard Tourscher
Original Assignee
Siderurgie Fse Inst Rech
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 Siderurgie Fse Inst Rech filed Critical Siderurgie Fse Inst Rech
Publication of ZA838895B publication Critical patent/ZA838895B/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10821—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices
    • G06K7/10861—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum further details of bar or optical code scanning devices sensing of data fields affixed to objects or articles, e.g. coded labels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Artificial Intelligence (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Credit Cards Or The Like (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Image Analysis (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Holo Graphy (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Character Input (AREA)
  • Discharge Of Articles From Conveyors (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

1. A method of reading a coded message on an object (1) one surface (2) of which bears an embossed marking realized in the form of rectilinear segments (3) disposed parallel to each other so as to define said coded message, characterized in that an incident light beam (5) is directed onto the marked surface (2) so as to form a spot there which is observed under substantially specular reflection conditions with the aid of photosensitive means (7) whose optical axis forms with said light beam (5) a plane (9) which the coding segments (3) pass during relative displacement of the object (1) and the photosensitive means (7), and the presence of a segment (3) is identified when a displacement of the image of the spot and a weakening of its intensity resulting from its change of shape are simultaneously observed on the photosensitive means (7).
ZA838895A 1982-12-20 1983-11-29 A process for reading relief marking on a product ZA838895B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8221353A FR2538143A1 (en) 1982-12-20 1982-12-20 METHOD FOR READING A RELIEF MARKING ON A METALLURGICAL PRODUCT

Publications (1)

Publication Number Publication Date
ZA838895B true ZA838895B (en) 1984-07-25

Family

ID=9280295

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA838895A ZA838895B (en) 1982-12-20 1983-11-29 A process for reading relief marking on a product

Country Status (10)

Country Link
EP (1) EP0112767B1 (en)
JP (1) JPS59133676A (en)
KR (1) KR840007193A (en)
AT (1) ATE30485T1 (en)
AU (1) AU2232783A (en)
DE (1) DE3374240D1 (en)
DK (1) DK542883A (en)
ES (1) ES528176A0 (en)
FR (1) FR2538143A1 (en)
ZA (1) ZA838895B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0380209A (en) * 1989-08-24 1991-04-05 Nippon Telegr & Teleph Corp <Ntt> Perrule for polarization maintaining optical fiber

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3380334A (en) * 1963-10-29 1968-04-30 Control Data Corp Optical scanning system using specular reflections
US3947691A (en) * 1970-02-16 1976-03-30 Decicom Systems, Inc. Optical embossing reader
GB1470562A (en) * 1974-04-02 1977-04-14 Sharp Kk Embossed card reader
US4020327A (en) * 1976-01-30 1977-04-26 Bell Telephone Laboratories, Incorporated Apparatus for reading optical codes
DE3279976D1 (en) * 1981-03-30 1989-11-16 Minnesota Mining & Mfg Method and apparatus for sensing and identifying information within a large interrogation zone

Also Published As

Publication number Publication date
DK542883D0 (en) 1983-11-28
DK542883A (en) 1984-06-21
DE3374240D1 (en) 1987-12-03
FR2538143A1 (en) 1984-06-22
KR840007193A (en) 1984-12-05
ATE30485T1 (en) 1987-11-15
EP0112767B1 (en) 1987-10-28
ES8406760A1 (en) 1984-08-01
ES528176A0 (en) 1984-08-01
JPS59133676A (en) 1984-08-01
EP0112767A1 (en) 1984-07-04
FR2538143B1 (en) 1985-04-26
AU2232783A (en) 1984-06-28

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