GB8519808D0 - Optical sensor - Google Patents

Optical sensor

Info

Publication number
GB8519808D0
GB8519808D0 GB858519808A GB8519808A GB8519808D0 GB 8519808 D0 GB8519808 D0 GB 8519808D0 GB 858519808 A GB858519808 A GB 858519808A GB 8519808 A GB8519808 A GB 8519808A GB 8519808 D0 GB8519808 D0 GB 8519808D0
Authority
GB
United Kingdom
Prior art keywords
optical sensor
optical
sensor
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.)
Granted
Application number
GB858519808A
Other versions
GB2178840B (en
GB2178840A (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.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB8519808A priority Critical patent/GB2178840B/en
Publication of GB8519808D0 publication Critical patent/GB8519808D0/en
Publication of GB2178840A publication Critical patent/GB2178840A/en
Application granted granted Critical
Publication of GB2178840B publication Critical patent/GB2178840B/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)
  • Geophysics And Detection Of Objects (AREA)
GB8519808A 1985-08-07 1985-08-07 An optical sensor Expired GB2178840B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8519808A GB2178840B (en) 1985-08-07 1985-08-07 An optical sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8519808A GB2178840B (en) 1985-08-07 1985-08-07 An optical sensor

Publications (3)

Publication Number Publication Date
GB8519808D0 true GB8519808D0 (en) 1985-09-11
GB2178840A GB2178840A (en) 1987-02-18
GB2178840B GB2178840B (en) 1989-08-23

Family

ID=10583430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8519808A Expired GB2178840B (en) 1985-08-07 1985-08-07 An optical sensor

Country Status (1)

Country Link
GB (1) GB2178840B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2289330B (en) * 1994-05-11 1997-12-10 Fox Thomas Co Ltd Sensor apparatus for use with an electronic lock
DE59510347D1 (en) 1994-12-22 2002-10-02 Optosys Ag Villars Sur Glane proximity switch
US6835923B2 (en) 2001-11-16 2004-12-28 Nokia Corporation Method and apparatus for self-monitoring of proximity sensors
US8826188B2 (en) * 2011-08-26 2014-09-02 Qualcomm Incorporated Proximity sensor calibration

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2102628A5 (en) * 1970-08-12 1972-04-07 Compteurs Comp D
IT939097B (en) * 1970-11-06 1973-02-10 Cie Des Compreurs IMPROVEMENTS TO OPTICAL FIBER OPTICAL COMPARATORS
FR2127068A5 (en) * 1971-02-22 1972-10-13 Schlumberger Compteurs

Also Published As

Publication number Publication date
GB2178840B (en) 1989-08-23
GB2178840A (en) 1987-02-18

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee