GB1214148A - Device for detecting variations in the surface reflectance of objects - Google Patents

Device for detecting variations in the surface reflectance of objects

Info

Publication number
GB1214148A
GB1214148A GB5645967A GB5645967A GB1214148A GB 1214148 A GB1214148 A GB 1214148A GB 5645967 A GB5645967 A GB 5645967A GB 5645967 A GB5645967 A GB 5645967A GB 1214148 A GB1214148 A GB 1214148A
Authority
GB
United Kingdom
Prior art keywords
lens
receiver
surface reflectance
detecting variations
dec
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.)
Expired
Application number
GB5645967A
Inventor
Jean-Claude Adam Chaimowicz
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.)
Mining and Chemical Products Ltd
Original Assignee
Mining and Chemical Products 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 Mining and Chemical Products Ltd filed Critical Mining and Chemical Products Ltd
Priority to GB5645967A priority Critical patent/GB1214148A/en
Priority to FR1594988D priority patent/FR1594988A/fr
Priority to CH1856368A priority patent/CH479067A/en
Priority to DE19681814276 priority patent/DE1814276A1/en
Publication of GB1214148A publication Critical patent/GB1214148A/en
Expired 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
    • G06K7/10861—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
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/55—Specular reflectivity

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Toxicology (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Theoretical Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

1,214,148. Measuring reflectance photoelectrically. MINING & CHEMICAL PRODUCTS Ltd. Dec. 6, 1968 [Dec. 12, 1967], No. 56459/67. Heading G1A. A device for detecting variations in the surface reflectance of objects comprises a semi-conductor light source and a semi-conductor light receiver disposed on one side of a lens, the receiver being located in such a position in relation to the emitter that light reflected from an object through the lens will strike the receiver. Infrared radiation from a GaAs emitter 6 spaced from the lens 5 by a tube 1 of more than 2 focal lengths is directed on to an object 9. Reflected light from 9 passes back through lens 5 and falls on four parallel photosensitive devices 7 connected to an amplifying transistor 8. A spacer may be inserted between the tube 1 and block 2 to vary the resolving power of the arrangement.
GB5645967A 1967-12-12 1967-12-12 Device for detecting variations in the surface reflectance of objects Expired GB1214148A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB5645967A GB1214148A (en) 1967-12-12 1967-12-12 Device for detecting variations in the surface reflectance of objects
FR1594988D FR1594988A (en) 1967-12-12 1968-12-10
CH1856368A CH479067A (en) 1967-12-12 1968-12-12 Detector of variation of the surface reflectance of an object
DE19681814276 DE1814276A1 (en) 1967-12-12 1968-12-12 Device for recording changes in the surface reflection properties of objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5645967A GB1214148A (en) 1967-12-12 1967-12-12 Device for detecting variations in the surface reflectance of objects

Publications (1)

Publication Number Publication Date
GB1214148A true GB1214148A (en) 1970-12-02

Family

ID=10476678

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5645967A Expired GB1214148A (en) 1967-12-12 1967-12-12 Device for detecting variations in the surface reflectance of objects

Country Status (4)

Country Link
CH (1) CH479067A (en)
DE (1) DE1814276A1 (en)
FR (1) FR1594988A (en)
GB (1) GB1214148A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411421A1 (en) * 1977-12-06 1979-07-06 Lasag Sa OPTICAL PRESENCE DETECTOR
GB2117511A (en) * 1982-02-19 1983-10-12 Dr Paul Derek Cook Laser beam alignment detection
WO2003052800A2 (en) * 2001-12-17 2003-06-26 Cyberoptics Semiconductor, Inc. Semiconductor wafer carrier mapping sensor

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414757A1 (en) * 1978-01-11 1979-08-10 Rao Code reader for postal sorting centres - uses black plastics piece through which IR beam is transceived and space spectrum corrected
AT356935B (en) * 1978-05-02 1980-06-10 Vianova Kunstharz Ag ARRANGEMENT FOR MEASURING THE CHARACTERISTICS OF THE GLOSS SURFACE OF SURFACES
FR2475256A1 (en) * 1980-02-06 1981-08-07 Bortolin Ennio IR reflective bar code reader with wide vertical angle tolerance - uses horizontal plane collimating lens ahead of phototransistors mounted above and blow IR LED
DE3200652C2 (en) * 1982-01-12 1992-01-16 Metzeler Kautschuk GmbH, 8000 München Sealing frame made of elastomeric material
JPS62203071A (en) * 1986-03-03 1987-09-07 Agency Of Ind Science & Technol Infrared sensor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411421A1 (en) * 1977-12-06 1979-07-06 Lasag Sa OPTICAL PRESENCE DETECTOR
GB2117511A (en) * 1982-02-19 1983-10-12 Dr Paul Derek Cook Laser beam alignment detection
WO2003052800A2 (en) * 2001-12-17 2003-06-26 Cyberoptics Semiconductor, Inc. Semiconductor wafer carrier mapping sensor
WO2003052800A3 (en) * 2001-12-17 2003-11-13 Cyberoptics Semiconductor Inc Semiconductor wafer carrier mapping sensor
US7095763B2 (en) 2001-12-17 2006-08-22 Cyberoptics Semiconductor, Inc. Semiconductor wafer carrier mapping sensor

Also Published As

Publication number Publication date
FR1594988A (en) 1970-06-08
CH479067A (en) 1969-09-30
DE1814276A1 (en) 1969-07-10

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees