GB1342058A - Device for measuring the intensity of a scanning light beam by means of a light-conducting rod - Google Patents

Device for measuring the intensity of a scanning light beam by means of a light-conducting rod

Info

Publication number
GB1342058A
GB1342058A GB1451972A GB1451972A GB1342058A GB 1342058 A GB1342058 A GB 1342058A GB 1451972 A GB1451972 A GB 1451972A GB 1451972 A GB1451972 A GB 1451972A GB 1342058 A GB1342058 A GB 1342058A
Authority
GB
United Kingdom
Prior art keywords
light
rod
mirror
along
intensity
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
GB1451972A
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 GB1342058A publication Critical patent/GB1342058A/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

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

Abstract

1342058 Light guides E SICK 28 March 1972 [1 April 1971 11 Oct 1971] 14519/72 Heading G2J [Also in Division G1] In an arrangement wherein light from a linearly scanning beam is appliedto a dectector 13, Fig.2 by internal reflection in a rod 14 placed along the scanned path, uniformity of response is enhanced by a mirror 12 along the side remote from the incident beam in combination with shutters 16a..i which may be individually adjusted by screws 17 Fig. 1. The surface 14 on which light is incident is made matt by grinding or etching to diffuse the light, and an additional diffusing state 25 diffused on its underside may be mounted above but close to the rod. The spacing between the plate 25 and the rod may be varied along its length by inclining the plate to the rod. The apparatus may be used in conjuntion with a laser beam scanning a moving material for defects and may include a filter to select a desired wavelength. A cylindrical lens and mirror may be provided at the end remote from the detector.
GB1451972A 1971-10-11 1972-03-28 Device for measuring the intensity of a scanning light beam by means of a light-conducting rod Expired GB1342058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712150634 DE2150634B2 (en) 1971-10-11 1971-10-11 DEVICE FOR MEASURING THE INTENSITY OF A LIGHT BEAM AT DIFFERENT POINTS OF A LINE-SHAPED AREA WITH A LIGHT GUIDE STICK

Publications (1)

Publication Number Publication Date
GB1342058A true GB1342058A (en) 1973-12-25

Family

ID=5822040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1451972A Expired GB1342058A (en) 1971-10-11 1972-03-28 Device for measuring the intensity of a scanning light beam by means of a light-conducting rod

Country Status (2)

Country Link
DE (1) DE2150634B2 (en)
GB (1) GB1342058A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006071C2 (en) * 1980-02-19 1987-05-27 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Light collecting arrangement in a device for scanning a surface such as a material web along a straight line by means of a light beam

Also Published As

Publication number Publication date
DE2150634A1 (en) 1973-04-26
DE2150634B2 (en) 1977-11-24
DE2150634C3 (en) 1978-07-13

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee