DE3219809A1 - Automatisches scharfeinstellungssystem - Google Patents

Automatisches scharfeinstellungssystem

Info

Publication number: DE3219809A1
Authority: DE; Germany
Prior art keywords: automatic focusing; focusing system; automatic; focusing
Prior art date: 1981-05-28
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

DE19823219809

Other languages

English (en)

Inventor

Takashi Kawabata

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.)

Canon Inc

Original Assignee

Canon Inc

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.)

1981-05-28

Filing date

1982-05-26

Publication date

1982-12-23

1981-05-28 Priority claimed from JP8133681A external-priority patent/JPS57196219A/ja

1981-05-29 Priority claimed from JP8266881A external-priority patent/JPS57197524A/ja

1982-05-26 Application filed by Canon Inc filed Critical Canon Inc

1982-12-23 Publication of DE3219809A1 publication Critical patent/DE3219809A1/de

Status Granted legal-status Critical Current

Classifications

- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated focusing

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Focusing (AREA)

DE19823219809 1981-05-28 1982-05-26 Automatisches scharfeinstellungssystem Granted DE3219809A1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP8133681A JPS57196219A (en)	1981-05-28	1981-05-28	Autofocusing camera
JP8266881A JPS57197524A (en)	1981-05-29	1981-05-29	Automatic focusing camera

Publications (1)

Publication Number	Publication Date
DE3219809A1 true DE3219809A1 (de)	1982-12-23

Family

ID=26422357

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE19823219809 Granted DE3219809A1 (de)	1981-05-28	1982-05-26	Automatisches scharfeinstellungssystem

Country Status (2)

Country	Link
US (1)	US4416523A (de)
DE (1)	DE3219809A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
USRE33015E (en) *	1981-12-17	1989-08-08	Minolta Camera Kabushiki Kaisha	Camera system operable in accordance with stored memory
US6183145B1 (en) *	1986-02-13	2001-02-06	Canon Kabushiki Kaisha	Camera system
US4904854A (en) *	1987-01-12	1990-02-27	Minolta Camera Kabushiki Kaisha	Automatic focus detecting device having deviation compensation
US4845521A (en) *	1987-01-12	1989-07-04	Canon Kabushiki Kaisha	Camera with automatic focusing apparatus
JPS63172231A (ja) *	1987-01-12	1988-07-15	Canon Inc	自動焦点調節装置
US4967225A (en) *	1987-01-12	1990-10-30	Canon Kabushiki Kaisha	Camera incorporating automatic focusing apparatus
US5097282A (en) *	1987-02-06	1992-03-17	Minolta Camera Kabushiki Kaisha	Automatic focusing apparatus
JP2605282B2 (ja) *	1987-05-21	1997-04-30	ミノルタ株式会社	自動焦点調節装置
US5243375A (en) *	1987-05-21	1993-09-07	Minolta Camera Kabushiki Kaisha	Automatic focus adjusting device for adjusting the focus of the main object to be photographed
US5144357A (en) *	1987-11-06	1992-09-01	Minolta Camera Kabushiki Kaisha	Automatic focus detecting means
JP2662650B2 (ja) *	1987-11-06	1997-10-15	ミノルタ株式会社	自動焦点調節装置
US5053800A (en) *	1988-01-21	1991-10-01	Minolta Camera Kabushiki Kaisha	Automatic focus detecting apparatus
US5159376A (en) *	1990-05-29	1992-10-27	Nikon Corporation	Automatic focus controlling apparatus
FR2670022A1 (fr) *	1990-11-29	1992-06-05	Asahi Optical Co Ltd	Dispositif de mise au point automatique.
JP4125104B2 (ja) *	2002-12-10	2008-07-30	キヤノン株式会社	自動合焦装置、プログラム、及びコンピュータ読み取り可能な記憶媒体

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2249849A1 (de) *	1971-10-11	1973-04-19	Canon Kk	Automatische fokussiervorrichtung fuer eine kamera
DE2549905B2 (de) *	1974-11-07	1977-10-27	Asahi Kogaku Kogyo K.K, Tokio	Vorrichtung zur scharfeinstellung eines objektivs
DE2015899B2 (de) *	1969-04-04	1978-02-23	Eastman Kodak Co, Rochester, N Y (VStA)	Kamera mit koordinierter blenden- und entfernungseinstellung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3571598A (en) *	1969-12-08	1971-03-23	Mc Donnell Douglas Corp	Automatic focusing means using an analog signal correlator
US3836919A (en) *	1970-12-08	1974-09-17	Canon Kk	Automatic focusing device for use with a photographic camera

1982
- 1982-05-20 US US06/380,438 patent/US4416523A/en not_active Expired - Lifetime
- 1982-05-26 DE DE19823219809 patent/DE3219809A1/de active Granted

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2015899B2 (de) *	1969-04-04	1978-02-23	Eastman Kodak Co, Rochester, N Y (VStA)	Kamera mit koordinierter blenden- und entfernungseinstellung
DE2249849A1 (de) *	1971-10-11	1973-04-19	Canon Kk	Automatische fokussiervorrichtung fuer eine kamera
DE2549905B2 (de) *	1974-11-07	1977-10-27	Asahi Kogaku Kogyo K.K, Tokio	Vorrichtung zur scharfeinstellung eines objektivs

Also Published As

Publication number	Publication date
US4416523A (en)	1983-11-22

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Legal Events

Date	Code	Title	Description
1986-09-11	8110	Request for examination paragraph 44
1987-07-23	8125	Change of the main classification	Ipc: G03B 3/10
1989-06-01	D2	Grant after examination
1989-11-30	8364	No opposition during term of opposition