GB8923297D0 - Automatic focusing device - Google Patents
Automatic focusing deviceInfo
- Publication number
- GB8923297D0 GB8923297D0 GB898923297A GB8923297A GB8923297D0 GB 8923297 D0 GB8923297 D0 GB 8923297D0 GB 898923297 A GB898923297 A GB 898923297A GB 8923297 A GB8923297 A GB 8923297A GB 8923297 D0 GB8923297 D0 GB 8923297D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- automatic focusing
- focusing device
- automatic
- focusing
- 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.)
- Granted
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
- G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988135835U JPH0714969Y2 (en) | 1988-10-18 | 1988-10-18 | Camera autofocus device |
JP27281688A JPH02118610A (en) | 1988-10-28 | 1988-10-28 | Focus limiter for automatic focusing camera |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8923297D0 true GB8923297D0 (en) | 1989-12-06 |
GB2224126A GB2224126A (en) | 1990-04-25 |
GB2224126B GB2224126B (en) | 1993-03-31 |
Family
ID=26469589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8923297A Expired - Fee Related GB2224126B (en) | 1988-10-18 | 1989-10-16 | Automatic focusing device |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3934767C2 (en) |
FR (1) | FR2637990A1 (en) |
GB (1) | GB2224126B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3103587B2 (en) * | 1990-04-25 | 2000-10-30 | オリンパス光学工業株式会社 | Automatic focusing device |
FR2670027A1 (en) * | 1990-11-29 | 1992-06-05 | Asahi Optical Co Ltd | AUTOMATIC FOCUSING DEVICE. |
US5291235A (en) * | 1990-11-29 | 1994-03-01 | Asahi Kogaku Kogyo Kabushiki Kaisha | Automatic focusing device |
USRE36546E (en) * | 1990-11-29 | 2000-02-01 | Asahi Kogaku Kogyo Kabushiki Kaisha | Automatic focusing device |
FR2676552B1 (en) * | 1991-05-15 | 1996-01-12 | Asahi Optical Co Ltd | AUTOMATIC FOCUSING DEVICE. |
US8134597B2 (en) * | 2008-12-05 | 2012-03-13 | Sony Ericsson Mobile Communications Ab | Camera system with touch focus and method |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5732409A (en) * | 1980-08-06 | 1982-02-22 | Chinon Kk | Focusing controller |
DE3141182A1 (en) * | 1980-10-16 | 1982-05-19 | Canon K.K., Tokyo | "FOCUS DETECTING SYSTEM" |
JPS58132205A (en) * | 1982-01-30 | 1983-08-06 | Ricoh Co Ltd | Lens driving system for auto-focus system |
JPS5964816A (en) * | 1982-10-05 | 1984-04-12 | Olympus Optical Co Ltd | Lens barrel |
JPS59119306A (en) * | 1982-12-25 | 1984-07-10 | Canon Inc | Automatic focus adjusting device |
JPS6053913A (en) * | 1983-09-05 | 1985-03-28 | Canon Inc | Automatic focusing device |
US4671640A (en) * | 1984-08-09 | 1987-06-09 | Minolta Camera Kabushiki Kaisha | Automatic focus control camera |
DE3437145C2 (en) * | 1984-10-10 | 1996-03-28 | Ricoh Kk | Automatic focusing device for photographic cameras |
JP2572372B2 (en) * | 1985-05-23 | 1997-01-16 | 株式会社ニコン | Focus detection device |
JPS62169113A (en) * | 1986-01-21 | 1987-07-25 | Minolta Camera Co Ltd | Automatic focus adjuster |
US4768054A (en) * | 1986-02-14 | 1988-08-30 | Minolta Camera Kabushiki Kaisha | Focus condition detecting device |
JPH0820582B2 (en) * | 1986-07-16 | 1996-03-04 | 株式会社ニコン | camera |
JPS6347742A (en) * | 1986-08-15 | 1988-02-29 | Nikon Corp | Automatic focus adjusting camera |
DE68920782T2 (en) * | 1988-05-13 | 1995-08-10 | Nippon Kogaku Kk | Automatic focusing device. |
-
1989
- 1989-10-16 GB GB8923297A patent/GB2224126B/en not_active Expired - Fee Related
- 1989-10-17 FR FR8913522A patent/FR2637990A1/fr active Pending
- 1989-10-18 DE DE19893934767 patent/DE3934767C2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
FR2637990A1 (en) | 1990-04-20 |
GB2224126A (en) | 1990-04-25 |
DE3934767A1 (en) | 1990-04-19 |
DE3934767C2 (en) | 1996-05-30 |
GB2224126B (en) | 1993-03-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20071016 |