IT1165410B - Macchina cinematografica con messa a fuoco automatica con risposta perfezionata alla messa a fuoco - Google Patents

Macchina cinematografica con messa a fuoco automatica con risposta perfezionata alla messa a fuoco

Info

Publication number
IT1165410B
IT1165410B IT28297/79A IT2829779A IT1165410B IT 1165410 B IT1165410 B IT 1165410B IT 28297/79 A IT28297/79 A IT 28297/79A IT 2829779 A IT2829779 A IT 2829779A IT 1165410 B IT1165410 B IT 1165410B
Authority
IT
Italy
Prior art keywords
focus
film machine
automatic
perfect response
perfect
Prior art date
Application number
IT28297/79A
Other languages
English (en)
Other versions
IT7928297A0 (it
Inventor
Edwin Kalman Shenk
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 IT7928297A0 publication Critical patent/IT7928297A0/it
Application granted granted Critical
Publication of IT1165410B publication Critical patent/IT1165410B/it

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)
IT28297/79A 1979-01-02 1979-12-21 Macchina cinematografica con messa a fuoco automatica con risposta perfezionata alla messa a fuoco IT1165410B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/000,276 US4238143A (en) 1979-01-02 1979-01-02 Autofocus movie camera having pulsed terminal drive means

Publications (2)

Publication Number Publication Date
IT7928297A0 IT7928297A0 (it) 1979-12-21
IT1165410B true IT1165410B (it) 1987-04-22

Family

ID=21690772

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28297/79A IT1165410B (it) 1979-01-02 1979-12-21 Macchina cinematografica con messa a fuoco automatica con risposta perfezionata alla messa a fuoco

Country Status (10)

Country Link
US (1) US4238143A (it)
JP (1) JPS5921001B2 (it)
AT (1) AT365789B (it)
AU (1) AU538871B2 (it)
CA (1) CA1133304A (it)
CH (1) CH654673A5 (it)
DE (1) DE2950931A1 (it)
FR (1) FR2445974B1 (it)
GB (1) GB2040504B (it)
IT (1) IT1165410B (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5886893A (ja) * 1981-11-16 1983-05-24 Minolta Camera Co Ltd モ−タ駆動制御装置
JPS5888710A (ja) * 1981-12-21 1983-05-26 Nippon Kogaku Kk <Nikon> 自動合焦用撮影レンズ構体
JPS59170807A (ja) * 1982-12-28 1984-09-27 Kyocera Corp レンズ駆動モ−タ制御装置
JPH067216B2 (ja) * 1984-04-04 1994-01-26 キヤノン株式会社 自動焦点装置
JPH064331Y2 (ja) * 1984-12-27 1994-02-02 ミノルタカメラ株式会社 自動合焦装置付カメラ
US4743931A (en) * 1985-12-05 1988-05-10 Olympus Optical Company, Ltd. Apparatus for delivering distance information of camera
US4857947A (en) * 1986-12-08 1989-08-15 Nikon Corporation Position controlling device in a lens driving apparatus for camera
US5003400A (en) * 1987-08-19 1991-03-26 Hitachi, Ltd. Focusing apparatus of video camera or the like
US4878077A (en) * 1987-09-29 1989-10-31 Olympus Optical Company Ltd. Motor drive and control apparatus for a camera
GB2248947B (en) * 1988-02-22 1992-08-05 Honda Motor Co Ltd Synchronous operation control system for numerically controlled machine
JPH07107643B2 (ja) * 1988-02-22 1995-11-15 本田技研工業株式会社 Ｎｃ同期制御システム
JPH0218601A (ja) * 1988-07-07 1990-01-22 Mitsubishi Electric Corp サーボ制御装置
DE102018114388A1 (de) * 2018-06-15 2019-12-19 Valeo Schalter Und Sensoren Gmbh Verfahren zur Steuerung einer Antriebseinrichtung eines Mikroschwingspiegels, Steuervorrichtung und Umlenkspiegeleinrichtung

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3370289A (en) * 1965-02-26 1968-02-20 Collins Radio Co Digital-to-analog converter system
CA902167A (en) * 1967-09-22 1972-06-06 Fairchild Camera And Instrument Corporation Stepper motor control system
US3949287A (en) * 1971-05-28 1976-04-06 Agfa-Gevaert, A.G. Position-control servo system with speed-dependent damping action
US3760252A (en) * 1972-07-05 1973-09-18 Burroughs Corp Damping of a step servo motor using one step anticipation logic
JPS563564B2 (it) * 1973-09-06 1981-01-26
US4114079A (en) * 1973-10-04 1978-09-12 Ichiro Miyakita Rotary cutter drive control with electric motor
DE2460675C3 (de) * 1974-12-20 1981-06-11 Agfa-Gevaert Ag, 5090 Leverkusen Kinematografische Kamera
US4002405A (en) * 1975-04-03 1977-01-11 Curt Stahl Variable speed control for zooming
CA1099554A (en) * 1976-10-04 1981-04-21 Polaroid Corporation Automatic range finding and focussing camera
CA1120578A (en) * 1976-10-04 1982-03-23 Juerg Muggli Ultrasonic ranging system for a camera

Also Published As

Publication number Publication date
DE2950931A1 (de) 1980-07-17
AU5352779A (en) 1980-07-10
FR2445974B1 (fr) 1985-11-15
JPS5598724A (en) 1980-07-28
US4238143A (en) 1980-12-09
IT7928297A0 (it) 1979-12-21
GB2040504A (en) 1980-08-28
FR2445974A1 (fr) 1980-08-01
ATA804279A (de) 1981-06-15
CH654673A5 (de) 1986-02-28
CA1133304A (en) 1982-10-12
DE2950931C2 (it) 1987-01-29
JPS5921001B2 (ja) 1984-05-17
AU538871B2 (en) 1984-08-30
AT365789B (de) 1982-02-10
GB2040504B (en) 1982-07-28

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