GB2246258B - Optical sensors - Google Patents

Optical sensors

Info

Publication number
GB2246258B
GB2246258B GB9015782A GB9015782A GB2246258B GB 2246258 B GB2246258 B GB 2246258B GB 9015782 A GB9015782 A GB 9015782A GB 9015782 A GB9015782 A GB 9015782A GB 2246258 B GB2246258 B GB 2246258B
Authority
GB
United Kingdom
Prior art keywords
optical sensors
sensors
optical
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 - Fee Related
Application number
GB9015782A
Other versions
GB2246258A (en
GB9015782D0 (en
Inventor
James Mark Naden
John Christopher Greenwood
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.)
Nortel Networks Ltd
STC PLC
Alcatel Submarine Networks UK Ltd
Nortel Networks Optical Components Ltd
Original Assignee
Northern Telecom Ltd
STC PLC
Northern Telecom Europe Ltd
STC Submarine Systems Ltd
STC 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 Northern Telecom Ltd, STC PLC, Northern Telecom Europe Ltd, STC Submarine Systems Ltd, STC Ltd filed Critical Northern Telecom Ltd
Priority to GB9015782A priority Critical patent/GB2246258B/en
Publication of GB9015782D0 publication Critical patent/GB9015782D0/en
Publication of GB2246258A publication Critical patent/GB2246258A/en
Application granted granted Critical
Publication of GB2246258B publication Critical patent/GB2246258B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01D5/268—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 using optical fibres
GB9015782A 1990-07-18 1990-07-18 Optical sensors Expired - Fee Related GB2246258B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9015782A GB2246258B (en) 1990-07-18 1990-07-18 Optical sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9015782A GB2246258B (en) 1990-07-18 1990-07-18 Optical sensors

Publications (3)

Publication Number Publication Date
GB9015782D0 GB9015782D0 (en) 1990-09-05
GB2246258A GB2246258A (en) 1992-01-22
GB2246258B true GB2246258B (en) 1994-05-11

Family

ID=10679268

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9015782A Expired - Fee Related GB2246258B (en) 1990-07-18 1990-07-18 Optical sensors

Country Status (1)

Country Link
GB (1) GB2246258B (en)

Also Published As

Publication number Publication date
GB2246258A (en) 1992-01-22
GB9015782D0 (en) 1990-09-05

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030718