GB1375021A - - Google Patents

Info

Publication number
GB1375021A
GB1375021A GB5151971A GB5151971A GB1375021A GB 1375021 A GB1375021 A GB 1375021A GB 5151971 A GB5151971 A GB 5151971A GB 5151971 A GB5151971 A GB 5151971A GB 1375021 A GB1375021 A GB 1375021A
Authority
GB
United Kingdom
Prior art keywords
guide
radiation
receiving
thickness
guides
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
GB5151971A
Other languages
English (en)
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 claimed from FR7040004A external-priority patent/FR2112717A5/fr
Priority claimed from FR7101304A external-priority patent/FR2122040A6/fr
Application filed filed Critical
Publication of GB1375021A publication Critical patent/GB1375021A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/026—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring distance between sensor and object

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB5151971A 1970-11-06 1971-11-05 Expired GB1375021A (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7040004A FR2112717A5 (enrdf_load_stackoverflow) 1970-11-06 1970-11-06
FR7101304A FR2122040A6 (enrdf_load_stackoverflow) 1971-01-15 1971-01-15

Publications (1)

Publication Number Publication Date
GB1375021A true GB1375021A (enrdf_load_stackoverflow) 1974-11-27

Family

ID=26216037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5151971A Expired GB1375021A (enrdf_load_stackoverflow) 1970-11-06 1971-11-05

Country Status (3)

Country Link
DE (1) DE2155049A1 (enrdf_load_stackoverflow)
GB (1) GB1375021A (enrdf_load_stackoverflow)
IT (1) IT939097B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178840A (en) * 1985-08-07 1987-02-18 English Electric Company Plc An optical proximity sensor
GB2182436A (en) * 1985-11-05 1987-05-13 Emhart Ind Optical inspection of transparent or translucent layers

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0279836A1 (de) * 1986-09-03 1988-08-31 Wolfgang Dr. Ruhrmann Opto-elektronischer sensor
DE3644866A1 (de) * 1986-09-03 1988-03-17 Wolfgang Dr Ruhrmann Sensor
EP0336687B1 (en) * 1988-04-06 1995-02-15 Mitsubishi Denki Kabushiki Kaisha Recording and reproducing optical disk device
US5162661A (en) * 1990-02-08 1992-11-10 Pioneer Electronic Corporation Position detector for maintaining a fixed distance between two objects
GB9307484D0 (en) * 1993-04-08 1993-06-02 Lucas Ind Plc Optical displacement sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178840A (en) * 1985-08-07 1987-02-18 English Electric Company Plc An optical proximity sensor
GB2178840B (en) * 1985-08-07 1989-08-23 English Electric Company Plc An optical sensor
GB2182436A (en) * 1985-11-05 1987-05-13 Emhart Ind Optical inspection of transparent or translucent layers
GB2182436B (en) * 1985-11-05 1989-10-18 Emhart Ind Optical inspection of transparent layers

Also Published As

Publication number Publication date
DE2155049A1 (de) 1972-05-10
IT939097B (it) 1973-02-10

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Legal Events

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