FR2404868A1 - MANUAL AND AUTOMATICALLY CONTROLLED VARIABLE FOCAL LENS SYSTEM - Google Patents

MANUAL AND AUTOMATICALLY CONTROLLED VARIABLE FOCAL LENS SYSTEM

Info

Publication number
FR2404868A1
FR2404868A1 FR7828216A FR7828216A FR2404868A1 FR 2404868 A1 FR2404868 A1 FR 2404868A1 FR 7828216 A FR7828216 A FR 7828216A FR 7828216 A FR7828216 A FR 7828216A FR 2404868 A1 FR2404868 A1 FR 2404868A1
Authority
FR
France
Prior art keywords
desired function
manual
lens system
automatically controlled
perform
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
FR7828216A
Other languages
French (fr)
Other versions
FR2404868B1 (en
Inventor
John C Ostrowski
Norman D Staller
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
Publication of FR2404868A1 publication Critical patent/FR2404868A1/en
Application granted granted Critical
Publication of FR2404868B1 publication Critical patent/FR2404868B1/fr
Granted 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)
  • Lens Barrels (AREA)
  • Automatic Focus Adjustment (AREA)
  • Shutters For Cameras (AREA)

Abstract

Appareil comprenant un dispositif d'actionnement pour relier sélectivement ledit appareil à une source d'énergie, de premiers moyens excitables pour prélever un signal représentant la distance réelle entre ledit appareil et un objet éloigné de celui-ci, de seconds moyens répondant normalement à l'actionnement dudit dispositif d'actionnement pour rendre lesdits premiers moyens actifs et ensuite effectuer une première fonction souhaitee dépendant du signal prélevé par lesdits premiers moyens, puis une seconde fonction souhaitée et de troisièmes moyens actionnable, manuellement pour effectuer ladite première fonction souhaitée et pour rendre lesdits seconds moyens sensibles à l'actionnement dudit dispositif d'actionnement pour effectuer ladite seconde fonction souhaitée sans effectuer ladite première fonction souhaitée. Application aux appareils de prise de vues photographiques.Apparatus comprising an actuation device for selectively connecting said apparatus to a source of energy, first excitable means for picking up a signal representing the actual distance between said apparatus and an object distant therefrom, second means responding normally to the 'actuation of said actuating device to make said first means active and then perform a first desired function depending on the signal picked up by said first means, then a second desired function and third means operable, manually to perform said first desired function and to render said second means responsive to actuation of said actuator to perform said second desired function without performing said first desired function. Application to photographic cameras.

FR7828216A 1977-10-03 1978-10-03 MANUAL AND AUTOMATICALLY CONTROLLED VARIABLE FOCAL LENS SYSTEM Granted FR2404868A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83858177A 1977-10-03 1977-10-03

Publications (2)

Publication Number Publication Date
FR2404868A1 true FR2404868A1 (en) 1979-04-27
FR2404868B1 FR2404868B1 (en) 1984-08-10

Family

ID=25277484

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7828216A Granted FR2404868A1 (en) 1977-10-03 1978-10-03 MANUAL AND AUTOMATICALLY CONTROLLED VARIABLE FOCAL LENS SYSTEM

Country Status (6)

Country Link
JP (1) JPS5461525A (en)
CA (1) CA1122454A (en)
DE (1) DE2842851B2 (en)
FR (1) FR2404868A1 (en)
GB (1) GB2005852B (en)
IE (1) IE47956B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5573026A (en) * 1978-11-25 1980-06-02 Minolta Camera Co Ltd Automatic-manual focus controllable lens-barrel
JPS5573025A (en) * 1978-11-25 1980-06-02 Minolta Camera Co Ltd Changeover device of automatic-manual focus controllable lens-barrel
JPS5619033A (en) * 1979-07-25 1981-02-23 Canon Inc Automatic focus control unit
JPS5648620A (en) * 1979-09-28 1981-05-01 Nippon Seimitsu Kogyo Kk Automatic focus controlling mechanism of camera
JPS62201738U (en) * 1986-06-13 1987-12-23

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB975289A (en) * 1961-07-29 1964-11-11 Agfa Ag Zoom lens with a focus variation device selectively operable by hand or by motor and photographic camera comprising the same
FR2004667A1 (en) * 1968-03-25 1969-11-28 Polaroid Corp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB975289A (en) * 1961-07-29 1964-11-11 Agfa Ag Zoom lens with a focus variation device selectively operable by hand or by motor and photographic camera comprising the same
FR2004667A1 (en) * 1968-03-25 1969-11-28 Polaroid Corp

Also Published As

Publication number Publication date
IE47956B1 (en) 1984-08-08
DE2842851C3 (en) 1980-07-17
JPS5461525A (en) 1979-05-17
JPS5751084B2 (en) 1982-10-30
FR2404868B1 (en) 1984-08-10
CA1122454A (en) 1982-04-27
GB2005852B (en) 1982-03-17
DE2842851B2 (en) 1979-10-31
GB2005852A (en) 1979-04-25
IE781972L (en) 1979-04-03
DE2842851A1 (en) 1979-04-05

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Legal Events

Date Code Title Description
ST Notification of lapse