CA1151929A - Dispositif et methode de focalisation avec reglage de la profondeur de foyer de l'objectif - Google Patents

Dispositif et methode de focalisation avec reglage de la profondeur de foyer de l'objectif

Info

Publication number
CA1151929A
CA1151929A CA000372072A CA372072A CA1151929A CA 1151929 A CA1151929 A CA 1151929A CA 000372072 A CA000372072 A CA 000372072A CA 372072 A CA372072 A CA 372072A CA 1151929 A CA1151929 A CA 1151929A
Authority
CA
Canada
Prior art keywords
lens
focus
camera
aperture
distance
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
CA000372072A
Other languages
English (en)
Inventor
Kenneth C. Kiesel
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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 Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of CA1151929A publication Critical patent/CA1151929A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/40—Systems for automatic generation of focusing signals using time delay of the reflected waves, e.g. of ultrasonic waves

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Focusing (AREA)
  • Automatic Focus Adjustment (AREA)
  • Exposure Control For Cameras (AREA)
  • Lens Barrels (AREA)
CA000372072A 1980-03-03 1981-03-02 Dispositif et methode de focalisation avec reglage de la profondeur de foyer de l'objectif Expired CA1151929A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12682480A 1980-03-03 1980-03-03
US126,824 1980-03-03

Publications (1)

Publication Number Publication Date
CA1151929A true CA1151929A (fr) 1983-08-16

Family

ID=22426878

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000372072A Expired CA1151929A (fr) 1980-03-03 1981-03-02 Dispositif et methode de focalisation avec reglage de la profondeur de foyer de l'objectif

Country Status (5)

Country Link
JP (1) JPS56133722A (fr)
CA (1) CA1151929A (fr)
DE (1) DE3107945A1 (fr)
FR (1) FR2477292A1 (fr)
GB (1) GB2070794B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3346552A1 (de) * 1982-12-23 1984-06-28 Konishiroku Photo Industry Co., Ltd., Tokio/Tokyo Kamera
JPH0545057Y2 (fr) * 1986-03-17 1993-11-17
GB2196134B (en) * 1986-09-30 1990-12-19 Canon Kk Camera having auto focus apparatus
DE3912165A1 (de) * 1989-04-13 1989-09-28 Christian Dipl Ing Bock Zusatzsteuerung fuer autofocus-systeme

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641889A (en) * 1970-09-02 1972-02-15 Polaroid Corp Exposure control system
AT329375B (de) * 1974-05-07 1976-05-10 Eumig Kamera
JPS5114891A (en) * 1974-07-27 1976-02-05 Toyota Motor Co Ltd Shokubaino seizoho
US3975744A (en) * 1974-08-05 1976-08-17 Polaroid Corporation Automatic exposure control system
DE2755368A1 (de) * 1977-12-12 1979-06-13 Rollei Werke Franke Heidecke Fotografische oder kinematografische kamera mit einer einrichtung zum zuordnen und anzeigen von schaerfentiefenbereich und objektiveinstellwerten
GB2013353B (en) * 1977-12-30 1982-05-19 Polaroid Corp Focus control system for variable focus lenses
US4149792A (en) * 1977-12-30 1979-04-17 Polaroid Corporation Misfocus prevention means for cameras having unidirectional automatic focusing
DD136898A1 (de) * 1978-06-19 1979-08-01 Hans Jehmlich Schaltungsanordnung fuer photographische kameras
JPS5548737A (en) * 1978-10-02 1980-04-08 Konishiroku Photo Ind Co Ltd Photoelectrically focus detecting device mounted camera
US4178087A (en) * 1978-10-02 1979-12-11 Polaroid Corporation Autofocus movie camera having focus correction means

Also Published As

Publication number Publication date
JPS6364761B2 (fr) 1988-12-13
FR2477292B1 (fr) 1984-04-27
JPS56133722A (en) 1981-10-20
GB2070794A (en) 1981-09-09
FR2477292A1 (fr) 1981-09-04
GB2070794B (en) 1984-01-11
DE3107945A1 (de) 1981-12-24

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Legal Events

Date Code Title Description
MKEX Expiry