IT7928297A0 - 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
- IT7928297A0 IT7928297A0 IT7928297A IT2829779A IT7928297A0 IT 7928297 A0 IT7928297 A0 IT 7928297A0 IT 7928297 A IT7928297 A IT 7928297A IT 2829779 A IT2829779 A IT 2829779A IT 7928297 A0 IT7928297 A0 IT 7928297A0
- Authority
- IT
- Italy
- Prior art keywords
- focus
- response
- improved
- cinema camera
- auto
- Prior art date
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)
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 true IT7928297A0 (it) | 1979-12-21 |
IT1165410B 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) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112703417A (zh) * | 2018-06-15 | 2021-04-23 | 法雷奥开关和传感器有限责任公司 | 控制微振荡反射镜的驱动设备的方法、控制装置和偏转反射镜设备 |
Families Citing this family (12)
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 |
Family Cites Families (10)
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 |
CA1120578A (en) * | 1976-10-04 | 1982-03-23 | Juerg Muggli | Ultrasonic ranging system for a camera |
CA1099554A (en) * | 1976-10-04 | 1981-04-21 | Polaroid Corporation | Automatic range finding and focussing camera |
-
1979
- 1979-01-02 US US06/000,276 patent/US4238143A/en not_active Ceased
- 1979-12-06 AU AU53527/79A patent/AU538871B2/en not_active Ceased
- 1979-12-07 GB GB7942274A patent/GB2040504B/en not_active Expired
- 1979-12-17 CH CH11165/79A patent/CH654673A5/de not_active IP Right Cessation
- 1979-12-18 DE DE19792950931 patent/DE2950931A1/de active Granted
- 1979-12-20 AT AT0804279A patent/AT365789B/de not_active IP Right Cessation
- 1979-12-21 IT IT28297/79A patent/IT1165410B/it active
- 1979-12-28 JP JP54173949A patent/JPS5921001B2/ja not_active Expired
-
1980
- 1980-01-02 FR FR8000012A patent/FR2445974B1/fr not_active Expired
- 1980-01-02 CA CA342,928A patent/CA1133304A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112703417A (zh) * | 2018-06-15 | 2021-04-23 | 法雷奥开关和传感器有限责任公司 | 控制微振荡反射镜的驱动设备的方法、控制装置和偏转反射镜设备 |
Also Published As
Publication number | Publication date |
---|---|
FR2445974A1 (fr) | 1980-08-01 |
AU5352779A (en) | 1980-07-10 |
AT365789B (de) | 1982-02-10 |
US4238143A (en) | 1980-12-09 |
IT1165410B (it) | 1987-04-22 |
CA1133304A (en) | 1982-10-12 |
DE2950931C2 (it) | 1987-01-29 |
AU538871B2 (en) | 1984-08-30 |
DE2950931A1 (de) | 1980-07-17 |
ATA804279A (de) | 1981-06-15 |
CH654673A5 (de) | 1986-02-28 |
FR2445974B1 (fr) | 1985-11-15 |
GB2040504A (en) | 1980-08-28 |
JPS5598724A (en) | 1980-07-28 |
JPS5921001B2 (ja) | 1984-05-17 |
GB2040504B (en) | 1982-07-28 |
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