JPS4840089B1 - - Google Patents
Info
- Publication number
- JPS4840089B1 JPS4840089B1 JP44094623A JP9462369A JPS4840089B1 JP S4840089 B1 JPS4840089 B1 JP S4840089B1 JP 44094623 A JP44094623 A JP 44094623A JP 9462369 A JP9462369 A JP 9462369A JP S4840089 B1 JPS4840089 B1 JP S4840089B1
- Authority
- JP
- Japan
- 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)
- Focusing (AREA)
- Optical Couplings Of Light Guides (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP44094623A JPS4840089B1 (en, 2012) | 1969-11-27 | 1969-11-27 | |
| US91454A US3688673A (en) | 1969-11-27 | 1970-11-20 | Light receiving means in automatic focusing device |
| GB1297689D GB1297689A (en, 2012) | 1969-11-27 | 1970-11-20 | |
| DE19702058209 DE2058209A1 (de) | 1969-11-27 | 1970-11-26 | Einrichtung zur selbsttaetigen Scharfeinstellung optischer Geraete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP44094623A JPS4840089B1 (en, 2012) | 1969-11-27 | 1969-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4840089B1 true JPS4840089B1 (en, 2012) | 1973-11-28 |
Family
ID=14115366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP44094623A Pending JPS4840089B1 (en, 2012) | 1969-11-27 | 1969-11-27 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3688673A (en, 2012) |
| JP (1) | JPS4840089B1 (en, 2012) |
| DE (1) | DE2058209A1 (en, 2012) |
| GB (1) | GB1297689A (en, 2012) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015184614A (ja) * | 2014-03-26 | 2015-10-22 | リコーイメージング株式会社 | 自動焦点調節装置 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3950764A (en) * | 1971-10-08 | 1976-04-13 | Canon Kabushiki Kaisha | System for automatically focusing an object in a camera or the like |
| US3798660A (en) * | 1971-10-11 | 1974-03-19 | Canon Kk | Automatic focusing device for cameras |
| US4008965A (en) * | 1972-05-06 | 1977-02-22 | Asahi Optical Co., Ltd. | Method and device for use in detecting a precise focusing point |
| JPS5635844B2 (en, 2012) * | 1972-12-07 | 1981-08-20 | ||
| DE2260474C3 (de) * | 1972-12-11 | 1981-10-08 | Ernst Leitz Wetzlar Gmbh, 6330 Wetzlar | Verfahren und Einrichtung zur Scharfeinstellung eines Objektivs |
| US4474446A (en) * | 1982-06-30 | 1984-10-02 | Honeywell Inc. | Focal sensor having optical low pass filter |
| DD234340A3 (de) * | 1984-05-02 | 1986-04-02 | Zeiss Jena Veb Carl | Automatische fokussiereinrichtung |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3270647A (en) * | 1963-06-21 | 1966-09-06 | Agfa Ag | Objective-focusing apparatus |
| US3511155A (en) * | 1965-07-14 | 1970-05-12 | Nippon Kogaku Kk | Automatic focussing means of optical instruments and structure of the light receiving portion thereof |
| US3542475A (en) * | 1968-08-09 | 1970-11-24 | Alphanumeric Inc | Optical focusing |
-
1969
- 1969-11-27 JP JP44094623A patent/JPS4840089B1/ja active Pending
-
1970
- 1970-11-20 GB GB1297689D patent/GB1297689A/en not_active Expired
- 1970-11-20 US US91454A patent/US3688673A/en not_active Expired - Lifetime
- 1970-11-26 DE DE19702058209 patent/DE2058209A1/de active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015184614A (ja) * | 2014-03-26 | 2015-10-22 | リコーイメージング株式会社 | 自動焦点調節装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| US3688673A (en) | 1972-09-05 |
| GB1297689A (en, 2012) | 1972-11-29 |
| DE2058209A1 (de) | 1971-06-09 |