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GB2067280B - Optical position sensors - Google Patents

Optical position sensors

Info

Publication number
GB2067280B
GB2067280B GB8000928A GB8000928A GB2067280B GB 2067280 B GB2067280 B GB 2067280B GB 8000928 A GB8000928 A GB 8000928A GB 8000928 A GB8000928 A GB 8000928A GB 2067280 B GB2067280 B GB 2067280B
Authority
GB
United Kingdom
Prior art keywords
position sensors
optical position
optical
sensors
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
GB8000928A
Other versions
GB2067280A (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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Priority to GB8000928A priority Critical patent/GB2067280B/en
Publication of GB2067280A publication Critical patent/GB2067280A/en
Application granted granted Critical
Publication of GB2067280B publication Critical patent/GB2067280B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
GB8000928A 1980-01-11 1980-01-11 Optical position sensors Expired GB2067280B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8000928A GB2067280B (en) 1980-01-11 1980-01-11 Optical position sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8000928A GB2067280B (en) 1980-01-11 1980-01-11 Optical position sensors

Publications (2)

Publication Number Publication Date
GB2067280A GB2067280A (en) 1981-07-22
GB2067280B true GB2067280B (en) 1984-02-08

Family

ID=10510575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8000928A Expired GB2067280B (en) 1980-01-11 1980-01-11 Optical position sensors

Country Status (1)

Country Link
GB (1) GB2067280B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3829647A1 (en) * 1988-09-01 1990-03-15 Bodenseewerk Geraetetech MOTION SENSOR
JP2589411B2 (en) * 1990-12-27 1997-03-12 シャープ株式会社 Chip position detection method
US5376785A (en) * 1992-10-02 1994-12-27 Chin; Philip K. Optical displacement sensor utilizing optical diffusion
US5389777A (en) * 1992-10-02 1995-02-14 Chin; Philip K. Optical displacement sensor utilizing optical diffusion and reflection

Also Published As

Publication number Publication date
GB2067280A (en) 1981-07-22

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee