GB2128050B - Arrangement for automatic focusing of photographic cameras - Google Patents
Arrangement for automatic focusing of photographic camerasInfo
- Publication number
- GB2128050B GB2128050B GB08316817A GB8316817A GB2128050B GB 2128050 B GB2128050 B GB 2128050B GB 08316817 A GB08316817 A GB 08316817A GB 8316817 A GB8316817 A GB 8316817A GB 2128050 B GB2128050 B GB 2128050B
- Authority
- GB
- United Kingdom
- Prior art keywords
- arrangement
- automatic focusing
- photographic cameras
- photographic
- cameras
- 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.)
- Expired
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
- G02B7/34—Systems for automatic generation of focusing signals using different areas in a pupil plane
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Focusing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD24357282A DD210359A1 (en) | 1982-09-29 | 1982-09-29 | ARRANGEMENT FOR AUTOMATIC SHARPENING OF PHOTOGRAPHIC CAMERAS |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8316817D0 GB8316817D0 (en) | 1983-07-27 |
GB2128050A GB2128050A (en) | 1984-04-18 |
GB2128050B true GB2128050B (en) | 1986-08-06 |
Family
ID=5541444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08316817A Expired GB2128050B (en) | 1982-09-29 | 1983-06-21 | Arrangement for automatic focusing of photographic cameras |
Country Status (3)
Country | Link |
---|---|
DD (1) | DD210359A1 (en) |
DE (1) | DE3329603A1 (en) |
GB (1) | GB2128050B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3803305C3 (en) * | 1987-02-04 | 1998-12-10 | Asahi Optical Co Ltd | Device for detecting the focusing of a camera lens |
US5291234A (en) * | 1987-02-04 | 1994-03-01 | Asahi Kogaku Kogyo Kabushiki Kaisha | Auto optical focus detecting device and eye direction detecting optical system |
US5327191A (en) * | 1987-06-11 | 1994-07-05 | Asahi Kogaku Kogyo Kabushiki Kaisha | Eye direction detecting apparatus |
US5583606A (en) * | 1987-06-11 | 1996-12-10 | Asahi Kogaku Kogyo Kabushiki Kaisha | Eye direction detecting apparatus |
US5557364A (en) * | 1987-12-17 | 1996-09-17 | Asahi Kogaku Kogyo Kabushiki Kaisha | Eye direction detecting apparatus |
DE3943700C2 (en) * | 1988-04-28 | 1998-10-22 | Asahi Optical Co Ltd | Structure of optical surface of view finder screen |
JP2787488B2 (en) * | 1989-11-28 | 1998-08-20 | 旭光学工業株式会社 | Eye gaze detection device |
JPH05154106A (en) * | 1991-11-29 | 1993-06-22 | Asahi Optical Co Ltd | Sight line detecting device |
DE19730976C2 (en) * | 1996-07-19 | 2003-12-24 | Pentax Corp | Device for focusing the lens of a camera |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH543076A (en) * | 1971-06-23 | 1973-10-15 | Vockenhuber Karl | Range finder |
GB1510941A (en) * | 1976-01-15 | 1978-05-17 | Leitz Ernst Gmbh | Apparatus for photoelectrically determining the position of the focal plane in an optical system |
JPS6044643B2 (en) * | 1977-03-18 | 1985-10-04 | 旭光学工業株式会社 | focus detection device |
JPS5598709A (en) * | 1979-01-20 | 1980-07-28 | Nippon Kogaku Kk <Nikon> | Focusing detector |
US4373791A (en) * | 1979-02-20 | 1983-02-15 | Ricoh Company, Ltd. | Focusing position detection apparatus |
JPS5632126A (en) * | 1979-08-24 | 1981-04-01 | Canon Inc | Ttl type focus detector for lens interchangeable type camera |
JPS5843409A (en) * | 1981-09-10 | 1983-03-14 | Asahi Optical Co Ltd | Detection of focusing position |
-
1982
- 1982-09-29 DD DD24357282A patent/DD210359A1/en not_active IP Right Cessation
-
1983
- 1983-06-21 GB GB08316817A patent/GB2128050B/en not_active Expired
- 1983-08-17 DE DE19833329603 patent/DE3329603A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB8316817D0 (en) | 1983-07-27 |
DD210359A1 (en) | 1984-06-06 |
GB2128050A (en) | 1984-04-18 |
DE3329603A1 (en) | 1984-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920621 |