GB2020415A – Arrangement for the detection of faults on moving tapes
– Google Patents
GB2020415A – Arrangement for the detection of faults on moving tapes
– Google Patents
Arrangement for the detection of faults on moving tapes
Info
Publication number
GB2020415A
GB2020415A
GB7913732A
GB7913732A
GB2020415A
GB 2020415 A
GB2020415 A
GB 2020415A
GB 7913732 A
GB7913732 A
GB 7913732A
GB 7913732 A
GB7913732 A
GB 7913732A
GB 2020415 A
GB2020415 A
GB 2020415A
Authority
GB
United Kingdom
Prior art keywords
streaks
arrangement
detection
illumination
web
Prior art date
1978-04-19
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.)
Granted
Application number
GB7913732A
Other versions
GB2020415B
(en
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert 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.)
1978-04-19
Filing date
1979-04-19
Publication date
1979-11-14
1979-04-19
Application filed by Agfa Gevaert AG
filed
Critical
Agfa Gevaert AG
1979-11-14
Publication of GB2020415A
publication
Critical
patent/GB2020415A/en
1983-01-12
Application granted
granted
Critical
1983-01-12
Publication of GB2020415B
publication
Critical
patent/GB2020415B/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
G01N21/8916—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined for testing photographic material
Abstract
An arrangement for the detection of surface faults in the form of streaks on continuously moving webs comprising a source of light (206) for illuminating the web and a light receiving device (at 211) arranged at the angle of reflection. The source of light provides a substantially rectangular area of illumination on the tape having two sides parallel with the direction of movement (203) of the tape. The width of the rectangle is about twice the greatest expected width of the streaks. The streaks are detected by observing or recording the change in intensity of illumination in a plane of observation passing through the radiation field parallel to the web, using a ground glass screen, a magnifying lens, an image tube and photographic film or a slit and photodetector to scan the observation plane.
GB7913732A
1978-04-19
1979-04-19
Arrangement for the detection of faults of moving tapes
Expired
GB2020415B
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE19782816986
DE2816986C3
(en)
1978-04-19
1978-04-19
Arrangement for searching for errors on moving tapes
Publications (2)
Publication Number
Publication Date
GB2020415A
true
GB2020415A
(en)
1979-11-14
GB2020415B
GB2020415B
(en)
1983-01-12
Family
ID=6037410
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB7913732A
Expired
GB2020415B
(en)
1978-04-19
1979-04-19
Arrangement for the detection of faults of moving tapes
Country Status (6)
Country
Link
JP
(1)
JPS54141189A
(en)
BE
(1)
BE874785A
(en)
DE
(1)
DE2816986C3
(en)
FR
(1)
FR2423771A1
(en)
GB
(1)
GB2020415B
(en)
IT
(1)
IT7948759D0
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0297462A2
(en)
*
1987-07-01
1989-01-04
Fuji Photo Film Co., Ltd.
Tape defect detecting system
USD831908S1
(en)
2013-05-02
2018-10-23
Techtronic Floor Care Technology Limited
Floor cleaning device
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2159271B
(en)
*
1984-04-27
1988-05-18
Nissan Motor
Surface flaw detecting method and apparatus
DE3624366A1
(en)
*
1986-07-18
1988-01-21
Karlheinz Steuernagel
Device and method for the optical representation of defects on a surface
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1573508C3
(en)
*
1966-09-22
1974-10-10
Bayer Ag, 5090 Leverkusen
Device for searching for and locating strips of accumulating webs in the production of photographic papers and films
BE757900A
(en)
*
1969-10-24
1971-04-23
Agfa Gevaert Nv
DEVICE FOR TROUBLESHOOTING IN MOVING OPTICALLY TRANSPARENT MATERIALS
GB1407409A
(en)
*
1971-10-27
1975-09-24
Ferranti Ltd
Detection of blemishes in a surface
1978
1978-04-19
DE
DE19782816986
patent/DE2816986C3/en
not_active
Expired
1979
1979-03-13
BE
BE1/9307A
patent/BE874785A/en
unknown
1979-04-17
JP
JP4614379A
patent/JPS54141189A/en
active
Pending
1979-04-17
IT
IT4875979A
patent/IT7948759D0/en
unknown
1979-04-19
FR
FR7909901A
patent/FR2423771A1/en
active
Granted
1979-04-19
GB
GB7913732A
patent/GB2020415B/en
not_active
Expired
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
EP0297462A2
(en)
*
1987-07-01
1989-01-04
Fuji Photo Film Co., Ltd.
Tape defect detecting system
EP0297462A3
(en)
*
1987-07-01
1989-08-30
Fuji Photo Film Co., Ltd.
Tape defect detecting system
USD831908S1
(en)
2013-05-02
2018-10-23
Techtronic Floor Care Technology Limited
Floor cleaning device
Also Published As
Publication number
Publication date
IT7948759D0
(en)
1979-04-17
DE2816986C3
(en)
1986-03-27
FR2423771A1
(en)
1979-11-16
GB2020415B
(en)
1983-01-12
FR2423771B1
(en)
1984-03-16
JPS54141189A
(en)
1979-11-02
BE874785A
(en)
1979-07-02
DE2816986B2
(en)
1980-02-21
DE2816986A1
(en)
1979-10-25
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Legal Events
Date
Code
Title
Description
1987-11-04
746
Register noted ‘licences of right’ (sect. 46/1977)
1992-12-16
PCNP
Patent ceased through non-payment of renewal fee
