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GB862394A - Photoelectric control system, in particular for control by marks - Google Patents

Photoelectric control system, in particular for control by marks

Info

Publication number
GB862394A
GB862394A GB18798/57A GB1879857A GB862394A GB 862394 A GB862394 A GB 862394A GB 18798/57 A GB18798/57 A GB 18798/57A GB 1879857 A GB1879857 A GB 1879857A GB 862394 A GB862394 A GB 862394A
Authority
GB
United Kingdom
Prior art keywords
control
marks
light
cell
june
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
GB18798/57A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB862394A publication Critical patent/GB862394A/en
Expired legal-status Critical Current

Links

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
    • G01N21/8901—Optical details; Scanning details

Landscapes

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

Abstract

862,394. Photo-electric control. SICK, E. June 14, 1957 [June 19, 1956], No. 18798/57. Class 40(3) In apparatus in which light reflected from or transmitted by a web &c. 4 carrying control marks 5 falls on a photo-cell 7 to control an operation or give an indication, the amount of light falling on the web &c. is adjustable by a variable aperture 17 to control the amount of light falling on the cell 7 due to different webs and control marks. The light is directed on to the cell 7 by a concave mirror 6 and a lenticular screen 19. For determining the aperture necessary, two prisms 18, 18<SP>1</SP> are employed to form two images 3<SP>1</SP>, 3<SP>11</SP>, one of which is on a mark 5 to give an average light intensity.
GB18798/57A 1956-06-19 1957-06-14 Photoelectric control system, in particular for control by marks Expired GB862394A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE862394X 1956-06-19

Publications (1)

Publication Number Publication Date
GB862394A true GB862394A (en) 1961-03-08

Family

ID=6798089

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18798/57A Expired GB862394A (en) 1956-06-19 1957-06-14 Photoelectric control system, in particular for control by marks

Country Status (1)

Country Link
GB (1) GB862394A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253482B (en) * 1965-02-20 1967-11-02 Licentia Gmbh Photoelectric scanner
IT201900001069A1 (en) * 2019-01-24 2020-07-24 Futura Spa Device for the production of logs of paper material.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253482B (en) * 1965-02-20 1967-11-02 Licentia Gmbh Photoelectric scanner
IT201900001069A1 (en) * 2019-01-24 2020-07-24 Futura Spa Device for the production of logs of paper material.

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