FR2217668B1 - - Google Patents

Info

Publication number
FR2217668B1
FR2217668B1 FR7404539A FR7404539A FR2217668B1 FR 2217668 B1 FR2217668 B1 FR 2217668B1 FR 7404539 A FR7404539 A FR 7404539A FR 7404539 A FR7404539 A FR 7404539A FR 2217668 B1 FR2217668 B1 FR 2217668B1
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.)
Expired
Application number
FR7404539A
Other versions
FR2217668A1 (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.)
Bell and Howell Co
Original Assignee
Bell and Howell Co
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 Bell and Howell Co filed Critical Bell and Howell Co
Publication of FR2217668A1 publication Critical patent/FR2217668A1/fr
Application granted granted Critical
Publication of FR2217668B1 publication Critical patent/FR2217668B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/43—Control or regulation of mechanical tension of record carrier, e.g. tape tension
    • 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
    • G01D5/28—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 deflection of beams of light, e.g. for direct optical indication
    • G01D5/30—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 deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B1/00—Film strip handling
    • G03B1/42—Guiding, framing, or constraining film in desired position relative to lens system
    • G03B1/54—Tensioning or loop-maintaining devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
FR7404539A 1973-02-12 1974-02-11 Expired FR2217668B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00331371A US3828188A (en) 1973-02-12 1973-02-12 Rotational position sensor

Publications (2)

Publication Number Publication Date
FR2217668A1 FR2217668A1 (fr) 1974-09-06
FR2217668B1 true FR2217668B1 (fr) 1980-07-25

Family

ID=23293669

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7404539A Expired FR2217668B1 (fr) 1973-02-12 1974-02-11

Country Status (6)

Country Link
US (1) US3828188A (fr)
JP (2) JPS49114906A (fr)
CA (1) CA1058299A (fr)
DE (1) DE2406393C2 (fr)
FR (1) FR2217668B1 (fr)
GB (1) GB1454564A (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097005A (en) * 1976-05-03 1978-06-27 Ampex Corporation Web transport system
JPS58164044A (ja) * 1982-03-23 1983-09-28 Matsushita Electric Ind Co Ltd 磁気記録再生装置のテ−プテンシヨン制御装置
NL8403331A (nl) * 1984-11-02 1986-06-02 Optische Ind De Oude Delft Nv Elektronische keten voor het bepalen van de positie van een lichtspot op een positiegevoelige detector.
JPS61149144U (fr) * 1985-03-05 1986-09-13
CA2073802C (fr) * 1991-08-16 2003-04-01 John Shimmick Methode et appareil permettant d'apporter simultanement des corrections cylindriques et spheriques a la cornee
US5670779A (en) * 1995-05-05 1997-09-23 General Scanning Electro-optical shaft angle transducer having a rotatable refractive optical element
AT518531B1 (de) 2016-07-07 2017-11-15 Tridonic Gmbh & Co Kg Vorrichtung und Verfahren zur Erfassung des Drehwinkels

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921757A (en) * 1948-06-26 1960-01-19 Gen Scient Projects Inc Long range automatic navigator device
US3205364A (en) * 1956-12-31 1965-09-07 Baldwin Co D H Encoder
US3012469A (en) * 1959-06-01 1961-12-12 Pullman Inc Aligning device
CH368404A (fr) * 1959-12-18 1963-03-31 Baumgartner Freres Sa Dispositif de commande à distance pour orienter un jouet mobile
US3293513A (en) * 1962-08-08 1966-12-20 Texas Instruments Inc Semiconductor radiant diode
US3242482A (en) * 1963-04-15 1966-03-22 Bendix Corp Photoconductor means for indicator device
US3363106A (en) * 1964-06-26 1968-01-09 Seeburg Corp Photo-conductor potential divider
US3469102A (en) * 1966-09-27 1969-09-23 Canadair Ltd Drift angle meter for measuring the drift angle of aircraft
DE1957161B2 (de) * 1968-11-15 1972-09-28 Hitachi, Ltd., Tokio Photoelektrischer umsetzer
DE1942304A1 (de) * 1969-07-24 1971-02-25 Signt Ind Holdings Ltd Spielautomat
US3727123A (en) * 1972-02-22 1973-04-10 Electric Machinery Mfg Co Brushless generator field ground detection system

Also Published As

Publication number Publication date
FR2217668A1 (fr) 1974-09-06
JPS49114906A (fr) 1974-11-01
US3828188A (en) 1974-08-06
CA1058299A (fr) 1979-07-10
JPS616404Y2 (fr) 1986-02-26
DE2406393A1 (de) 1974-08-15
DE2406393C2 (de) 1986-01-23
JPS58129107U (ja) 1983-09-01
GB1454564A (en) 1976-11-03

Similar Documents

Publication Publication Date Title
FR2217668B1 (fr)
JPS535159B2 (fr)
AR195311A1 (fr)
AR195948A1 (fr)
AR196382A1 (fr)
AR193950A1 (fr)
AU447540B2 (fr)
AR196212Q (fr)
AU1891376A (fr)
AR196123Q (fr)
CH1189174A4 (fr)
AU479504A (fr)
AU479496A (fr)
CH564278A5 (fr)
CH563904A5 (fr)
CH566199A5 (fr)
CH563572A5 (fr)
CH563541A5 (fr)
CH560992A5 (fr)
CH559096A5 (fr)
CH559051A5 (fr)
CH566502A5 (fr)
CH1092673A4 (fr)
BG21603A3 (fr)
BG20035A1 (fr)

Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property
ST Notification of lapse