FR2449293B1 - - Google Patents
Info
- Publication number
- FR2449293B1 FR2449293B1 FR8003066A FR8003066A FR2449293B1 FR 2449293 B1 FR2449293 B1 FR 2449293B1 FR 8003066 A FR8003066 A FR 8003066A FR 8003066 A FR8003066 A FR 8003066A FR 2449293 B1 FR2449293 B1 FR 2449293B1
- 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
- G02B7/38—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals measured at different points on the optical axis, e.g. focussing on two or more planes and comparing image data
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2217/00—Details of cameras or camera bodies; Accessories therefor
- G03B2217/005—Blur detection
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 (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1525779A JPS55108631A (en) | 1979-02-13 | 1979-02-13 | Focus detector of camera |
| JP1525679A JPS55108630A (en) | 1979-02-13 | 1979-02-13 | Focus detector of camera |
| JP1525579A JPS55108629A (en) | 1979-02-13 | 1979-02-13 | Focus detector of camera |
| JP1694879A JPS55110228A (en) | 1979-02-16 | 1979-02-16 | Focus detector of camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2449293A1 FR2449293A1 (fr) | 1980-09-12 |
| FR2449293B1 true FR2449293B1 (US08197722-20120612-C00093.png) | 1984-11-30 |
Family
ID=27456351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8003066A Granted FR2449293A1 (fr) | 1979-02-13 | 1980-02-12 | Dispositif pour detecter la mise au point d'une camera |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE3005044C2 (US08197722-20120612-C00093.png) |
| FR (1) | FR2449293A1 (US08197722-20120612-C00093.png) |
| GB (1) | GB2047037B (US08197722-20120612-C00093.png) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3049233C2 (de) * | 1979-12-27 | 1988-01-21 | Asahi Kogaku Kogyo K.K., Tokyo | Fotografische Kamera mit automatischer Scharfeinstellung |
| DE3142133A1 (de) * | 1980-10-23 | 1982-05-27 | Ricoh Co., Ltd., Tokyo | Automatisches fokussiersystem |
| GB2195214B (en) * | 1980-12-10 | 1988-10-26 | Emi Ltd | Automatic focussing system for an optical system |
| DE3103154A1 (de) * | 1981-01-30 | 1982-08-26 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zur binaeren codierung der sensorsignale einer mehrzahl von optoelektronischen sensorelementen und verfahren zu ihrem betrieb |
| US4432620A (en) * | 1981-03-13 | 1984-02-21 | Ricoh Co., Ltd. | Lens motor drive device in automatic focusing camera |
| US4432622A (en) * | 1981-06-16 | 1984-02-21 | Ricoh Company, Ltd. | Focusing-position-detection circuit |
| JPS5843409A (ja) * | 1981-09-10 | 1983-03-14 | Asahi Optical Co Ltd | 合焦位置検出方法 |
| AU554186B2 (en) * | 1981-10-26 | 1986-08-14 | Sony Corporation | Apparatus for detecting distance to an object |
| US4498754A (en) * | 1982-01-25 | 1985-02-12 | Ricoh Company, Ltd. | Single lens reflex camera |
| JPS58153327A (ja) * | 1982-03-08 | 1983-09-12 | Toshiba Corp | パタ−ン検査装置 |
| JPS58211721A (ja) * | 1982-06-04 | 1983-12-09 | Olympus Optical Co Ltd | 合焦検出方法 |
| GB2129642B (en) * | 1982-11-05 | 1986-09-10 | British Library Board | Focus detection |
| JP2002287017A (ja) | 2001-03-28 | 2002-10-03 | Fuji Photo Optical Co Ltd | 撮影レンズのピント状態検出装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5379531A (en) * | 1976-12-24 | 1978-07-14 | Nippon Chemical Ind | Matched focal point detection device |
| FR2386832A1 (fr) * | 1977-04-05 | 1978-11-03 | Commissariat Energie Atomique | Procede de correction automatique de mise au point d'un microscope et un dispositif mettant en oeuvre ledit procede |
| JPS53166637U (US08197722-20120612-C00093.png) * | 1977-06-02 | 1978-12-27 | ||
| FR2396325A1 (fr) * | 1977-07-01 | 1979-01-26 | Olympus Optical Co | Dispositif de mise au point automatique d'une image |
| DE2836428A1 (de) * | 1978-08-19 | 1980-03-06 | Battelle Institut E V | Verfahren und vorrichtung zur automatischen scharfeinstellung von objektiven |
-
1980
- 1980-02-11 DE DE19803005044 patent/DE3005044C2/de not_active Expired
- 1980-02-12 FR FR8003066A patent/FR2449293A1/fr active Granted
- 1980-02-13 GB GB8004788A patent/GB2047037B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE3005044C2 (de) | 1984-09-20 |
| GB2047037B (en) | 1983-11-23 |
| DE3005044A1 (de) | 1980-08-14 |
| GB2047037A (en) | 1980-11-19 |
| FR2449293A1 (fr) | 1980-09-12 |
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 |