FR2435054B1 - - Google Patents
Info
- Publication number
- FR2435054B1 FR2435054B1 FR7921448A FR7921448A FR2435054B1 FR 2435054 B1 FR2435054 B1 FR 2435054B1 FR 7921448 A FR7921448 A FR 7921448A FR 7921448 A FR7921448 A FR 7921448A FR 2435054 B1 FR2435054 B1 FR 2435054B1
- Authority
- FR
- France
- 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
- G02B7/36—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)
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 (2)
Publication Number | Publication Date |
---|---|
FR2435054A1 FR2435054A1 (en) | 1980-03-28 |
FR2435054B1 true FR2435054B1 (en) | 1983-03-04 |
Family
ID=14456927
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7921448A Granted FR2435054A1 (en) | 1978-09-01 | 1979-08-27 | FOCUS DETECTION DEVICE FOR PHOTOGRAPHIC APPARATUS |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS5535317A (en) |
DE (1) | DE2935303C2 (en) |
FR (1) | FR2435054A1 (en) |
GB (1) | GB2030415B (en) |
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 (en) * | 1982-04-30 | 1983-11-05 | Fuji Electric Co Ltd | Automatic focus adjusting device of optical instrument |
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 (en) * | 1976-01-15 | 1977-08-12 | Leitz Ernst Gmbh | Auto focus with spatial filtering - has pairwise interrogation of photoelectric diodes and concentrator for optical fluxes |
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/en active Pending
-
1979
- 1979-08-10 GB GB7927958A patent/GB2030415B/en not_active Expired
- 1979-08-27 FR FR7921448A patent/FR2435054A1/en active Granted
- 1979-08-31 DE DE19792935303 patent/DE2935303C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2435054A1 (en) | 1980-03-28 |
GB2030415A (en) | 1980-04-02 |
DE2935303C2 (en) | 1982-05-19 |
GB2030415B (en) | 1983-03-09 |
DE2935303A1 (en) | 1980-03-13 |
JPS5535317A (en) | 1980-03-12 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
DL | Decision of the director general to leave to make available licences of right | ||
ST | Notification of lapse |