GB1170179A - Apparatus and Process for Detection of Streaks. - Google Patents

Apparatus and Process for Detection of Streaks.

Info

Publication number
GB1170179A
GB1170179A GB5870867A GB5870867A GB1170179A GB 1170179 A GB1170179 A GB 1170179A GB 5870867 A GB5870867 A GB 5870867A GB 5870867 A GB5870867 A GB 5870867A GB 1170179 A GB1170179 A GB 1170179A
Authority
GB
United Kingdom
Prior art keywords
coating
web
measuring head
paper
filter
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
GB5870867A
Inventor
Konrad Bunge
Otto Koch
Bernhard Vinzelberg
Gunther Koepke
George Brauniger
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.)
Bayer AG
Original Assignee
Bayer AG
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
Priority to CH1593767A priority Critical patent/CH502596A/en
Priority to FR130851A priority patent/FR1546310A/en
Application filed by Bayer AG filed Critical Bayer AG
Priority to GB5870867A priority patent/GB1170179A/en
Publication of GB1170179A publication Critical patent/GB1170179A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/74—Applying photosensitive compositions to the base; Drying processes therefor
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • 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
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • G01N21/8921—Streaks
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B35/00—Stereoscopic photography
    • G03B35/18—Stereoscopic photography by simultaneous viewing
    • G03B35/24—Stereoscopic photography by simultaneous viewing using apertured or refractive resolving means on screens or between screen and eye

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Textile Engineering (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Materials Engineering (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Paper (AREA)

Abstract

1,170,179. Copying by scanning. FARBENFABRIKEN BAYER A.G. 27 Dec., 1967, No. 58708/67. Heading H4F. [Also in Division G1] The coating produced on a web by an aqueous coating process is monitored for streaks by a photo-electric measuring head movable across the web at a point where the coating is still wet, the measuring head comprising a transducer sensitive to the 2Á absorption band of water. The web may be paper coated with photographic emulsion or polyethylene. Radiation from a filament lamp is focused on to the coated paper through a filter which removes wavelengths which would expose the emulsion. It passes through the coating and is scattered back by the paper through the coating and a 2Á filter to the PbS photo-cell. The measuring head is reciprocated across the web and its output is fed through a threshold circuit and a delay device to a recording element moved in synchronism with the measuring head. The recording head may be of the type which burns dots into metallized paper.
GB5870867A 1967-11-15 1967-12-27 Apparatus and Process for Detection of Streaks. Expired GB1170179A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH1593767A CH502596A (en) 1967-11-15 1967-11-15 Photographic coating process monitor
FR130851A FR1546310A (en) 1967-11-15 1967-12-04 Device and method for detecting and locating lines, in particular on strips of photographic paper and films in progress
GB5870867A GB1170179A (en) 1967-11-15 1967-12-27 Apparatus and Process for Detection of Streaks.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1593767A CH502596A (en) 1967-11-15 1967-11-15 Photographic coating process monitor
GB5870867A GB1170179A (en) 1967-11-15 1967-12-27 Apparatus and Process for Detection of Streaks.

Publications (1)

Publication Number Publication Date
GB1170179A true GB1170179A (en) 1969-11-12

Family

ID=25717221

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5870867A Expired GB1170179A (en) 1967-11-15 1967-12-27 Apparatus and Process for Detection of Streaks.

Country Status (2)

Country Link
CH (1) CH502596A (en)
GB (1) GB1170179A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338032A (en) * 1979-05-18 1982-07-06 Spencer Wright Industries, Inc. Detection of faults in sheet and like materials
US4475035A (en) * 1981-06-11 1984-10-02 Vektronics, Inc. Method and apparatus for scanning
US4595840A (en) * 1983-06-28 1986-06-17 Enso-Gutzeit Oy Procedure and means for observing streaks in the machine direction in paper or in its coating
US4849643A (en) * 1987-09-18 1989-07-18 Eaton Leonard Technologies Optical probe with overlapping detection fields
US5008555A (en) * 1988-04-08 1991-04-16 Eaton Leonard Technologies, Inc. Optical probe with overlapping detection fields
GB2239946A (en) * 1989-12-19 1991-07-17 Hajime Industries Detection of surface defects

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338032A (en) * 1979-05-18 1982-07-06 Spencer Wright Industries, Inc. Detection of faults in sheet and like materials
US4475035A (en) * 1981-06-11 1984-10-02 Vektronics, Inc. Method and apparatus for scanning
US4595840A (en) * 1983-06-28 1986-06-17 Enso-Gutzeit Oy Procedure and means for observing streaks in the machine direction in paper or in its coating
US4849643A (en) * 1987-09-18 1989-07-18 Eaton Leonard Technologies Optical probe with overlapping detection fields
US5008555A (en) * 1988-04-08 1991-04-16 Eaton Leonard Technologies, Inc. Optical probe with overlapping detection fields
GB2239946A (en) * 1989-12-19 1991-07-17 Hajime Industries Detection of surface defects

Also Published As

Publication number Publication date
CH502596A (en) 1971-01-31

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