IT7926181A0 - Sistema di correzione della messa a fuoco per macchine fotografiche con messa a fuoco automatica. - Google Patents

Sistema di correzione della messa a fuoco per macchine fotografiche con messa a fuoco automatica.

Info

Publication number: IT7926181A0
Authority: IT; Italy
Prior art keywords: correction system; focus correction; autofocus cameras; autofocus; cameras
Prior art date: 1978-10-02

Application number

IT7926181A

Other languages

English (en)

Other versions

IT1123409B (it

Inventor

Shenk Edwin Kalman

Shirley Y Tam

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.)

1978-10-02

Filing date

1979-10-02

Publication date

1979-10-02

1979-10-02 Application filed by Polaroid Corp filed Critical Polaroid Corp

1979-10-02 Publication of IT7926181A0 publication Critical patent/IT7926181A0/it

1986-04-30 Application granted granted Critical

1986-04-30 Publication of IT1123409B publication Critical patent/IT1123409B/it

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)

IT26181/79A 1978-10-02 1979-10-02 Sistema di correzione della messa a fuoco per macchine fotografiche con messa a fuoco automatica IT1123409B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US05/947,774 US4178087A (en)	1978-10-02	1978-10-02	Autofocus movie camera having focus correction means

Publications (2)

Publication Number	Publication Date
IT7926181A0 true IT7926181A0 (it)	1979-10-02
IT1123409B IT1123409B (it)	1986-04-30

Family

ID=25486743

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT26181/79A IT1123409B (it)	1978-10-02	1979-10-02	Sistema di correzione della messa a fuoco per macchine fotografiche con messa a fuoco automatica

Country Status (10)

Country	Link
US (1)	US4178087A (it)
JP (1)	JPS5550225A (it)
AT (1)	AT374012B (it)
AU (1)	AU530200B2 (it)
CA (1)	CA1133741A (it)
CH (1)	CH651945A5 (it)
DE (1)	DE2939219A1 (it)
FR (1)	FR2438280A1 (it)
GB (1)	GB2033611B (it)
IT (1)	IT1123409B (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2815151A1 (de) *	1978-04-07	1979-10-18	Agfa Gevaert Ag	Fokussiervorrichtung
US4309098A (en) *	1978-12-01	1982-01-05	Polaroid Corporation	Autofocus cine camera having automatic variable speed focusing
JPS5590934A (en) *	1978-12-29	1980-07-10	Nippon Kogaku Kk <Nikon>	Operating device of camera having automatic focusing device
JPS55115024A (en) *	1979-02-28	1980-09-04	Asahi Optical Co Ltd	Automatic focusing camera
FR2477292A1 (fr) *	1980-03-03	1981-09-04	Polaroid Corp	Systeme de mise au point pour appareil de prise de vues photographiques
US4367027A (en) *	1980-03-12	1983-01-04	Honeywell Inc.	Active auto focus system improvement
US4317991A (en) *	1980-03-12	1982-03-02	Honeywell Inc.	Digital auto focus system utilizing a photodetector array
US4336987A (en) *	1980-12-22	1982-06-29	Polaroid Corporation	Camera employing zone focusing
JPS5886893A (ja) *	1981-11-16	1983-05-24	Minolta Camera Co Ltd	モ−タ駆動制御装置
JPS58188964A (ja) *	1982-04-28	1983-11-04	West Electric Co Ltd	自動焦点調節方法および同調節装置
JPS5964816A (ja) *	1982-10-05	1984-04-12	Olympus Optical Co Ltd	レンズ鏡筒
US4849779A (en) *	1984-11-14	1989-07-18	Minolta Camera Kabushiki Kaisha	Moving driving device of camera
JPS61282812A (ja) *	1985-06-10	1986-12-13	Matsushita Electric Ind Co Ltd	レンズ位置検出装置
JPS6268057U (it) *	1985-10-18	1987-04-28
CN101770139B (zh) *	2008-12-29	2012-08-29	鸿富锦精密工业（深圳）有限公司	对焦控制系统及方法

Family Cites Families (11)

* 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
US3736057A (en) *	1971-04-12	1973-05-29	Eastman Kodak Co	Zone range finder apparatus
US3949287A (en) *	1971-05-28	1976-04-06	Agfa-Gevaert, A.G.	Position-control servo system with speed-dependent damping action
JPS563564B2 (it) *	1973-09-06	1981-01-26
US3945023A (en) *	1974-03-29	1976-03-16	Honeywell Inc.	Auto-focus camera with solid state range finder
JPS5114323A (it) *	1974-07-26	1976-02-04	Minolta Camera Kk
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
US4078171A (en) *	1976-06-14	1978-03-07	Honeywell Inc.	Digital auto focus
US4065778A (en) *	1976-06-17	1977-12-27	Eastman Kodak Company	Automatic rangefinder and focusing apparatus
CA1099554A (en) *	1976-10-04	1981-04-21	Polaroid Corporation	Automatic range finding and focussing camera

1978
- 1978-10-02 US US05/947,774 patent/US4178087A/en not_active Expired - Lifetime
1979
- 1979-08-15 AU AU49936/79A patent/AU530200B2/en not_active Ceased
- 1979-08-21 CA CA334,184A patent/CA1133741A/en not_active Expired
- 1979-09-14 GB GB7931969A patent/GB2033611B/en not_active Expired
- 1979-09-17 CH CH8396/79A patent/CH651945A5/de not_active IP Right Cessation
- 1979-09-27 DE DE19792939219 patent/DE2939219A1/de active Granted
- 1979-09-28 FR FR7924214A patent/FR2438280A1/fr active Granted
- 1979-10-01 JP JP12671479A patent/JPS5550225A/ja active Pending
- 1979-10-02 IT IT26181/79A patent/IT1123409B/it active
- 1979-10-02 AT AT0643379A patent/AT374012B/de not_active IP Right Cessation

Also Published As

Publication number	Publication date
DE2939219A1 (de)	1980-04-17
ATA643379A (de)	1983-07-15
GB2033611A (en)	1980-05-21
CA1133741A (en)	1982-10-19
AT374012B (de)	1984-03-12
FR2438280A1 (fr)	1980-04-30
JPS5550225A (en)	1980-04-11
AU4993679A (en)	1980-04-17
CH651945A5 (de)	1985-10-15
IT1123409B (it)	1986-04-30
AU530200B2 (en)	1983-07-07
FR2438280B1 (it)	1983-10-28
DE2939219C2 (it)	1989-03-09
US4178087A (en)	1979-12-11
GB2033611B (en)	1982-09-29

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