JPS5535317A - Focus detector of camera - Google Patents
Focus detector of cameraInfo
- Publication number
- JPS5535317A JPS5535317A JP10735478A JP10735478A JPS5535317A JP S5535317 A JPS5535317 A JP S5535317A JP 10735478 A JP10735478 A JP 10735478A JP 10735478 A JP10735478 A JP 10735478A JP S5535317 A JPS5535317 A JP S5535317A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- photoelectric elements
- sample holding
- numberth
- outputs
- 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.)
- Pending
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)
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10735478A JPS5535317A (en) | 1978-09-01 | 1978-09-01 | Focus detector of camera |
GB7927958A GB2030415B (en) | 1978-09-01 | 1979-08-10 | Focus detection device |
FR7921448A FR2435054A1 (fr) | 1978-09-01 | 1979-08-27 | Dispositif de detection de la mise au point pour appareil photographique |
DE19792935303 DE2935303C2 (de) | 1978-09-01 | 1979-08-31 | Vorrichtung zur Feststellung der Fokussierung eines Objektivs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10735478A JPS5535317A (en) | 1978-09-01 | 1978-09-01 | Focus detector of camera |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5535317A true JPS5535317A (en) | 1980-03-12 |
Family
ID=14456927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10735478A Pending JPS5535317A (en) | 1978-09-01 | 1978-09-01 | Focus detector of camera |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5535317A (ja) |
DE (1) | DE2935303C2 (ja) |
FR (1) | FR2435054A1 (ja) |
GB (1) | GB2030415B (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5759107A (en) * | 1980-09-26 | 1982-04-09 | Hitachi Ltd | Method and device for measuring plate thickness |
GB2195214B (en) * | 1980-12-10 | 1988-10-26 | Emi Ltd | Automatic focussing system for an optical system |
JPS58189606A (ja) * | 1982-04-30 | 1983-11-05 | Fuji Electric Co Ltd | 光学器械の自動焦点調整装置 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3906219A (en) * | 1973-10-09 | 1975-09-16 | Honeywell Inc | Focus detecting apparatus |
FR2338504A1 (fr) * | 1976-01-15 | 1977-08-12 | Leitz Ernst Gmbh | Dispositif pour la determination photo-electrique de la position d'un plan de nettete d'une image |
US4132888A (en) * | 1976-03-17 | 1979-01-02 | Toshihiro Kondo | Device for automatically focusing image |
JPS5529878A (en) * | 1978-08-24 | 1980-03-03 | Asahi Optical Co Ltd | Focus detector of camera |
-
1978
- 1978-09-01 JP JP10735478A patent/JPS5535317A/ja active Pending
-
1979
- 1979-08-10 GB GB7927958A patent/GB2030415B/en not_active Expired
- 1979-08-27 FR FR7921448A patent/FR2435054A1/fr active Granted
- 1979-08-31 DE DE19792935303 patent/DE2935303C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2435054B1 (ja) | 1983-03-04 |
FR2435054A1 (fr) | 1980-03-28 |
GB2030415A (en) | 1980-04-02 |
DE2935303C2 (de) | 1982-05-19 |
GB2030415B (en) | 1983-03-09 |
DE2935303A1 (de) | 1980-03-13 |
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