JPS56168283A - Reflected light reader - Google Patents

Reflected light reader

Info

Publication number
JPS56168283A
JPS56168283A JP7223580A JP7223580A JPS56168283A JP S56168283 A JPS56168283 A JP S56168283A JP 7223580 A JP7223580 A JP 7223580A JP 7223580 A JP7223580 A JP 7223580A JP S56168283 A JPS56168283 A JP S56168283A
Authority
JP
Japan
Prior art keywords
fiber
face
photodetecting
fibers
hyperboloid
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
JP7223580A
Other languages
Japanese (ja)
Inventor
Osamu Hasegawa
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7223580A priority Critical patent/JPS56168283A/en
Publication of JPS56168283A publication Critical patent/JPS56168283A/en
Pending legal-status Critical Current

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
    • G06K7/10831—Arrangement of optical elements, e.g. lenses, mirrors, prisms

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)

Abstract

PURPOSE:To perform reflection reading having high resolving power and large photodection levels by forming the common end face of lighting fibers or photodetecting fibers into a spherical shape or a hyperboloid of revolution shape. CONSTITUTION:A lighting fiber 41 constituted by bundling plural pieces of optical fibers, and a photodetecting fiber 42 which is so disposed in the bundle of the optical fibers that its end face aligns roughly to the end face of the fiber 41 are provided. Here, if the common end face of the fiber 41 or the fiber 42 is formed into a spherical shape or a hyperboloid of revolution shape, the resolving power attains the minimum value on the focal plane. Thereby, the reflection reading having high resolving powder and large photodetecting levels is accomplished.
JP7223580A 1980-05-30 1980-05-30 Reflected light reader Pending JPS56168283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7223580A JPS56168283A (en) 1980-05-30 1980-05-30 Reflected light reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7223580A JPS56168283A (en) 1980-05-30 1980-05-30 Reflected light reader

Publications (1)

Publication Number Publication Date
JPS56168283A true JPS56168283A (en) 1981-12-24

Family

ID=13483411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7223580A Pending JPS56168283A (en) 1980-05-30 1980-05-30 Reflected light reader

Country Status (1)

Country Link
JP (1) JPS56168283A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6151560U (en) * 1984-09-07 1986-04-07

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151165A (en) * 1974-05-25 1975-12-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50151165A (en) * 1974-05-25 1975-12-04

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6151560U (en) * 1984-09-07 1986-04-07

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