FR2399681A1 - Dispositif de detection de la quantite de deplacement d'un film pour appareil photographique - Google Patents

Dispositif de detection de la quantite de deplacement d'un film pour appareil photographique

Info

Publication number
FR2399681A1
FR2399681A1 FR7822640A FR7822640A FR2399681A1 FR 2399681 A1 FR2399681 A1 FR 2399681A1 FR 7822640 A FR7822640 A FR 7822640A FR 7822640 A FR7822640 A FR 7822640A FR 2399681 A1 FR2399681 A1 FR 2399681A1
Authority
FR
France
Prior art keywords
camera
detector elements
count
pressure plate
logic circuitry
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
FR7822640A
Other languages
English (en)
Other versions
FR2399681B1 (fr
Inventor
Shuichi Tamura
Tetsuya Taguchi
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.)
Canon Inc
Original Assignee
Canon Inc
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
Priority claimed from JP52092370A external-priority patent/JPS6057578B2/ja
Priority claimed from JP9236777A external-priority patent/JPS6057577B2/ja
Priority claimed from JP9236977A external-priority patent/JPS5426723A/ja
Priority claimed from JP9236877A external-priority patent/JPS5426722A/ja
Application filed by Canon Inc filed Critical Canon Inc
Publication of FR2399681A1 publication Critical patent/FR2399681A1/fr
Application granted granted Critical
Publication of FR2399681B1 publication Critical patent/FR2399681B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G03B1/60—Measuring or indicating length of the used or unused film; Counting number of exposures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)

Abstract

Dispositif de détection de la quantité de déplacement d'un film pour appareil photographique ou pour caméra. Le dispositif comprend une paire d'électrodes de détection, disposées en un endroit où les perforations passent entre les électrodes, de façon à détecter la différence de capacité électrostatique avec et sans perforation. Non seulement le dispositif de détection peut être utilisé au moment d'une prise de photographie, mais aussi la quantité de déplacement du film peut etre détectée correctement Application aux appareils photographiques et aux caméras.
FR7822640A 1977-08-01 1978-07-31 Dispositif de detection de la quantite de deplacement d'un film pour appareil photographique Granted FR2399681A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP52092370A JPS6057578B2 (ja) 1977-08-01 1977-08-01 カメラの空送り制御装置
JP9236777A JPS6057577B2 (ja) 1977-08-01 1977-08-01 カメラの給送制御装置
JP9236977A JPS5426723A (en) 1977-08-01 1977-08-01 Film movement detector for camera
JP9236877A JPS5426722A (en) 1977-08-01 1977-08-01 Film movement detector for camera

Publications (2)

Publication Number Publication Date
FR2399681A1 true FR2399681A1 (fr) 1979-03-02
FR2399681B1 FR2399681B1 (fr) 1982-11-05

Family

ID=27468032

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7822640A Granted FR2399681A1 (fr) 1977-08-01 1978-07-31 Dispositif de detection de la quantite de deplacement d'un film pour appareil photographique

Country Status (2)

Country Link
DE (1) DE2833550C3 (fr)
FR (1) FR2399681A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4299466A (en) * 1980-05-05 1981-11-10 Eastman Kodak Company Apparatus for restoring lost data to a memory device
DE19617291C2 (de) * 1996-04-30 1999-03-04 Raytheon Anschuetz Gmbh Verfahren und Vorrichtung zur Verringerung des Bildstandfehlers bei der Projektion von Filmen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2170551A5 (fr) * 1971-12-23 1973-09-14 Zentronik Veb K
DE2521158A1 (de) * 1975-05-13 1976-11-25 Schickedanz Willi Einrichtung zum anzeigen der bildnummern bei einer kamera mit filmfortschaltung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5840170B2 (ja) * 1973-03-20 1983-09-03 富士写真光機株式会社 フイルムの電動巻上げ装置
US4021828A (en) * 1974-02-13 1977-05-03 Canon Kabushiki Kaisha Film counter
JPS5650259B2 (fr) * 1974-02-25 1981-11-27
DE2441542B2 (de) * 1974-08-30 1977-01-20 Bildzaehlvorrichtung in kinematografischen kameras
JPS5234717A (en) * 1975-09-12 1977-03-16 Fuji Photo Optical Co Ltd Motor drive device for the single lens reflex camera

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2170551A5 (fr) * 1971-12-23 1973-09-14 Zentronik Veb K
DE2521158A1 (de) * 1975-05-13 1976-11-25 Schickedanz Willi Einrichtung zum anzeigen der bildnummern bei einer kamera mit filmfortschaltung

Also Published As

Publication number Publication date
DE2833550C2 (fr) 1988-11-24
DE2833550C3 (de) 1995-06-01
FR2399681B1 (fr) 1982-11-05
DE2833550A1 (de) 1979-02-15

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