FR2144899A1 - - Google Patents

Info

Publication number
FR2144899A1
FR2144899A1 FR7224809A FR7224809A FR2144899A1 FR 2144899 A1 FR2144899 A1 FR 2144899A1 FR 7224809 A FR7224809 A FR 7224809A FR 7224809 A FR7224809 A FR 7224809A FR 2144899 A1 FR2144899 A1 FR 2144899A1
Authority
FR
France
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.)
Withdrawn
Application number
FR7224809A
Other languages
French (fr)
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Publication of FR2144899A1 publication Critical patent/FR2144899A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)
FR7224809A 1971-07-07 1972-07-07 Withdrawn FR2144899A1 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3186171A GB1396889A (en) 1971-07-07 1971-07-07 Optical velocity measuring apparatus

Publications (1)

Publication Number Publication Date
FR2144899A1 true FR2144899A1 (cs) 1973-02-16

Family

ID=10329497

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7224809A Withdrawn FR2144899A1 (cs) 1971-07-07 1972-07-07

Country Status (4)

Country Link
CH (1) CH564777A5 (cs)
DE (2) DE2233509A1 (cs)
FR (1) FR2144899A1 (cs)
GB (1) GB1396889A (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56147120A (en) * 1980-04-18 1981-11-14 Victor Co Of Japan Ltd Optical low-pass filter

Also Published As

Publication number Publication date
GB1396889A (en) 1975-06-11
DE2233509A1 (de) 1973-03-15
DE7225461U (de) 1973-07-26
CH564777A5 (cs) 1975-07-31

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Legal Events

Date Code Title Description
ST Notification of lapse