GB2021894B - Monocular range-finders - Google Patents
Monocular range-findersInfo
- Publication number
- GB2021894B GB2021894B GB7917310A GB7917310A GB2021894B GB 2021894 B GB2021894 B GB 2021894B GB 7917310 A GB7917310 A GB 7917310A GB 7917310 A GB7917310 A GB 7917310A GB 2021894 B GB2021894 B GB 2021894B
- Authority
- GB
- United Kingdom
- Prior art keywords
- finders
- monocular range
- monocular
- range
- 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
- G02B7/343—Systems for automatic generation of focusing signals using different areas in a pupil plane using light beam separating prisms
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Focusing (AREA)
- Studio Devices (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
- Measurement Of Optical Distance (AREA)
- Automatic Focus Adjustment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782821722 DE2821722C2 (en) | 1978-05-18 | 1978-05-18 | Device for automatic or semi-automatic focusing of the image of an object on an image plane |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2021894A GB2021894A (en) | 1979-12-05 |
GB2021894B true GB2021894B (en) | 1982-10-27 |
Family
ID=6039644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7917310A Expired GB2021894B (en) | 1978-05-18 | 1979-05-17 | Monocular range-finders |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS54153029A (en) |
DE (1) | DE2821722C2 (en) |
FR (1) | FR2426272B1 (en) |
GB (1) | GB2021894B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4414470A (en) * | 1979-02-08 | 1983-11-08 | Ricoh Company, Ltd. | Pupil divisional focusing position detection apparatus using lenticula lens |
DE3050691C2 (en) * | 1979-02-09 | 1984-09-27 | Asahi Kogaku Kogyo K.K., Tokio/Tokyo | Focusing determination device of a camera with a device for determining the average lighting of an object to be photographed |
JPS5788415A (en) * | 1980-11-21 | 1982-06-02 | Mamiya Koki Kk | Automatic focusing control device |
GB2195214B (en) * | 1980-12-10 | 1988-10-26 | Emi Ltd | Automatic focussing system for an optical system |
JPS5843409A (en) * | 1981-09-10 | 1983-03-14 | Asahi Optical Co Ltd | Detection of focusing position |
JPS5933409A (en) * | 1982-08-19 | 1984-02-23 | Olympus Optical Co Ltd | Focusing detector |
DD217621A1 (en) * | 1983-07-20 | 1985-01-16 | Univ Schiller Jena | DEVICE FOR THE FOTOMETRIC STRUCTURE ORDER IDENTIFICATION WITH A PHOTO MEMPARATOR ARRAY |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4840089A (en) * | 1971-09-26 | 1973-06-12 | ||
DE2156617C3 (en) * | 1971-11-15 | 1980-08-21 | Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar | Device for determining the position of the plane of maximum amplitude of a spatial frequency, for example in the case of a range finder |
CH553421A (en) * | 1971-11-15 | 1974-08-30 | Leitz Ernst Gmbh | DEVICE FOR INDEPENDENT FOCUSING. |
US4083056A (en) * | 1975-09-09 | 1978-04-04 | Asahi Kogaku Kogyo Kabushiki Kaisha | Focus detecting device for single-lens reflex cameras |
JPS52110032A (en) * | 1976-03-12 | 1977-09-14 | Canon Inc | Detector for focusing |
JPS5914723B2 (en) * | 1976-05-22 | 1984-04-05 | 旭光学工業株式会社 | Focus detection device for single-lens reflex camera |
JPS6044643B2 (en) * | 1977-03-18 | 1985-10-04 | 旭光学工業株式会社 | focus detection device |
JPS5593325A (en) * | 1979-01-09 | 1980-07-15 | Sharp Corp | Precharge circuit of mos transistor |
-
1978
- 1978-05-18 DE DE19782821722 patent/DE2821722C2/en not_active Expired
-
1979
- 1979-05-16 FR FR7912431A patent/FR2426272B1/en not_active Expired
- 1979-05-17 JP JP6098979A patent/JPS54153029A/en active Pending
- 1979-05-17 GB GB7917310A patent/GB2021894B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2426272B1 (en) | 1985-12-27 |
DE2821722C2 (en) | 1981-09-17 |
JPS54153029A (en) | 1979-12-01 |
FR2426272A1 (en) | 1979-12-14 |
GB2021894A (en) | 1979-12-05 |
DE2821722A1 (en) | 1979-11-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |