JPS55124112A - Focusing detector - Google Patents
Focusing detectorInfo
- Publication number
- JPS55124112A JPS55124112A JP3004679A JP3004679A JPS55124112A JP S55124112 A JPS55124112 A JP S55124112A JP 3004679 A JP3004679 A JP 3004679A JP 3004679 A JP3004679 A JP 3004679A JP S55124112 A JPS55124112 A JP S55124112A
- Authority
- JP
- Japan
- Prior art keywords
- circuits
- space frequency
- signals
- information
- space
- 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.)
- Granted
Links
- 238000003491 array Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 abstract 1
Landscapes
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3004679A JPS55124112A (en) | 1979-03-16 | 1979-03-16 | Focusing detector |
US06/112,350 US4336450A (en) | 1979-01-20 | 1980-01-15 | Focus detecting apparatus |
DE19803001767 DE3001767A1 (de) | 1979-01-20 | 1980-01-18 | Fokussiererfassungsvorrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3004679A JPS55124112A (en) | 1979-03-16 | 1979-03-16 | Focusing detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55124112A true JPS55124112A (en) | 1980-09-25 |
JPS6236207B2 JPS6236207B2 (enrdf_load_stackoverflow) | 1987-08-06 |
Family
ID=12292872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3004679A Granted JPS55124112A (en) | 1979-01-20 | 1979-03-16 | Focusing detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55124112A (enrdf_load_stackoverflow) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61209413A (ja) * | 1986-01-20 | 1986-09-17 | Nippon Kogaku Kk <Nikon> | 焦点検出装置 |
JPH04338905A (ja) * | 1991-07-01 | 1992-11-26 | Nikon Corp | 焦点検出装置 |
EP0774730A3 (en) * | 1995-11-01 | 1998-04-01 | Canon Kabushiki Kaisha | Object extraction method, and image sensing apparatus using the method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS545270A (en) * | 1977-06-09 | 1979-01-16 | Lonza Ag | Rotary filter |
-
1979
- 1979-03-16 JP JP3004679A patent/JPS55124112A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS545270A (en) * | 1977-06-09 | 1979-01-16 | Lonza Ag | Rotary filter |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61209413A (ja) * | 1986-01-20 | 1986-09-17 | Nippon Kogaku Kk <Nikon> | 焦点検出装置 |
JPH04338905A (ja) * | 1991-07-01 | 1992-11-26 | Nikon Corp | 焦点検出装置 |
EP0774730A3 (en) * | 1995-11-01 | 1998-04-01 | Canon Kabushiki Kaisha | Object extraction method, and image sensing apparatus using the method |
US6636635B2 (en) | 1995-11-01 | 2003-10-21 | Canon Kabushiki Kaisha | Object extraction method, and image sensing apparatus using the method |
US6993184B2 (en) | 1995-11-01 | 2006-01-31 | Canon Kabushiki Kaisha | Object extraction method, and image sensing apparatus using the method |
Also Published As
Publication number | Publication date |
---|---|
JPS6236207B2 (enrdf_load_stackoverflow) | 1987-08-06 |
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