CA1099554A - Methode de mise au point automatique de la lentille d'une camera en fonction de la distance de l'objet photographie - Google Patents

Methode de mise au point automatique de la lentille d'une camera en fonction de la distance de l'objet photographie

Info

Publication number
CA1099554A
CA1099554A CA282,155A CA282155A CA1099554A CA 1099554 A CA1099554 A CA 1099554A CA 282155 A CA282155 A CA 282155A CA 1099554 A CA1099554 A CA 1099554A
Authority
CA
Canada
Prior art keywords
camera
accordance
lens
lens mount
range
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
CA282,155A
Other languages
English (en)
Inventor
Edwin K. Shenk
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
Priority to CA352,423A priority Critical patent/CA1108458A/fr
Application granted granted Critical
Publication of CA1099554A publication Critical patent/CA1099554A/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)
  • Shutters For Cameras (AREA)
  • Lens Barrels (AREA)
CA282,155A 1976-10-04 1977-07-06 Methode de mise au point automatique de la lentille d'une camera en fonction de la distance de l'objet photographie Expired CA1099554A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA352,423A CA1108458A (fr) 1976-10-04 1980-05-21 Appareil photographique ou cinematographique a telemetrie et mise au point automatiques

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72928976A 1976-10-04 1976-10-04
US729,289 1976-10-04

Publications (1)

Publication Number Publication Date
CA1099554A true CA1099554A (fr) 1981-04-21

Family

ID=24930378

Family Applications (1)

Application Number Title Priority Date Filing Date
CA282,155A Expired CA1099554A (fr) 1976-10-04 1977-07-06 Methode de mise au point automatique de la lentille d'une camera en fonction de la distance de l'objet photographie

Country Status (9)

Country Link
JP (2) JPS5348523A (fr)
AT (1) AT368638B (fr)
AU (1) AU511120B2 (fr)
CA (1) CA1099554A (fr)
CH (2) CH627285A5 (fr)
DE (1) DE2744093C3 (fr)
FR (1) FR2366593A1 (fr)
GB (2) GB1591340A (fr)
IT (1) IT1110180B (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5359419A (en) * 1976-11-10 1978-05-29 Mamiya Camera Automatic focusing device for camera
US4149792A (en) * 1977-12-30 1979-04-17 Polaroid Corporation Misfocus prevention means for cameras having unidirectional automatic focusing
GB2013353B (en) * 1977-12-30 1982-05-19 Polaroid Corp Focus control system for variable focus lenses
DE2801251A1 (de) * 1978-01-12 1979-07-19 Agfa Gevaert Ag Vorrichtung zur scharfeinstellung des objektivs einer fotografischen oder kinematografischen kamera
US4182563A (en) * 1978-04-20 1980-01-08 Polaroid Corporation Focus control system for interchangeable adjustable focus lenses
GB2020051B (en) * 1978-04-25 1982-06-30 Polaroid Corp Cameras with rangefinders
FR2424559A1 (fr) * 1978-04-25 1979-11-23 Polaroid Corp Dispositif de selection de modes de commande de mise au point, manuel ou automatique
US4167316A (en) * 1978-06-26 1979-09-11 Polaroid Corporation Sonar controlled lens focus apparatus
US4178087A (en) * 1978-10-02 1979-12-11 Polaroid Corporation Autofocus movie camera having focus correction means
US4238143A (en) * 1979-01-02 1980-12-09 Polaroid Corporation Autofocus movie camera having pulsed terminal drive means
US4239354A (en) * 1979-01-02 1980-12-16 Polaroid Corporation Autofocus movie camera having improved focus response
JPS55115023A (en) * 1979-02-28 1980-09-04 Canon Inc Distance detector and focus control system utilizing this
JPS5642472A (en) * 1979-09-13 1981-04-20 Matsushita Electric Ind Co Ltd Automatic focusing unit of television camera
US4307952A (en) * 1980-06-03 1981-12-29 Polaroid Corporation Auto focus camera with electronic lens disc pawl release arrangement
US5099263A (en) * 1984-11-10 1992-03-24 Minolta Camera Kabushiki Kaisha Variable focal length camera
JPS63183267A (ja) * 1987-01-21 1988-07-28 Mazda Motor Corp 渦流室式デイ−ゼルエンジン
US5130216A (en) * 1988-09-22 1992-07-14 Canon Kabushiki Kaisha Photosensitive member for electrophotography
JP2567086B2 (ja) * 1989-03-15 1996-12-25 キヤノン株式会社 電子写真感光体
US5419993A (en) * 1991-11-01 1995-05-30 Canon Kabushiki Kaisha Polyamide, electrophotographic photosensitive member employing the polyamide, and electrophotographic apparatus, device unit and facsimile machine employing the member
JPH0654490A (ja) * 1992-07-17 1994-02-25 Namiki Precision Jewel Co Ltd スロットレス電機子の巻線方法
DE60011170T2 (de) * 1999-03-19 2005-07-14 Canon K.K. Elektrophotographisches fotoempfindliches Element, Prozesskartusche und elektrophotographischer Apparat
US8285390B2 (en) 2007-08-21 2012-10-09 Zeltiq Aesthetics, Inc. Monitoring the cooling of subcutaneous lipid-rich cells, such as the cooling of adipose tissue

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945023A (en) * 1974-03-29 1976-03-16 Honeywell Inc. Auto-focus camera with solid state range finder

Also Published As

Publication number Publication date
JPS6261933B2 (fr) 1987-12-24
CH627285A5 (en) 1981-12-31
DE2744093B2 (de) 1979-10-04
JPS58193528A (ja) 1983-11-11
AT368638B (de) 1982-10-25
FR2366593B1 (fr) 1982-12-03
GB1591338A (en) 1981-06-17
AU2828677A (en) 1979-03-01
AU511120B2 (en) 1980-07-31
DE2744093A1 (de) 1978-04-06
DE2744093C3 (de) 1980-06-26
ATA706377A (de) 1982-02-15
CH646798A5 (en) 1984-12-14
FR2366593A1 (fr) 1978-04-28
IT1110180B (it) 1985-12-23
JPS5348523A (en) 1978-05-02
GB1591340A (en) 1981-06-17
JPS6155099B2 (fr) 1986-11-26

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Legal Events

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