JPH02244019A - 焦点検出装置 - Google Patents
焦点検出装置Info
- Publication number
- JPH02244019A JPH02244019A JP2024065A JP2406590A JPH02244019A JP H02244019 A JPH02244019 A JP H02244019A JP 2024065 A JP2024065 A JP 2024065A JP 2406590 A JP2406590 A JP 2406590A JP H02244019 A JPH02244019 A JP H02244019A
- Authority
- JP
- Japan
- Prior art keywords
- filter means
- output
- photoelectric
- signal
- filter
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 72
- 238000006243 chemical reaction Methods 0.000 claims abstract description 57
- 230000003287 optical effect Effects 0.000 claims abstract description 50
- 238000003384 imaging method Methods 0.000 claims abstract description 29
- 238000003491 array Methods 0.000 claims abstract description 14
- 238000004364 calculation method Methods 0.000 claims description 48
- 238000005070 sampling Methods 0.000 abstract description 41
- 238000006073 displacement reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 12
- 238000001914 filtration Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 210000001747 pupil Anatomy 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 101100258233 Caenorhabditis elegans sun-1 gene Proteins 0.000 description 1
- 101100024583 Mus musculus Mtf1 gene Proteins 0.000 description 1
- 241000270666 Testudines Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2024065A JPH02244019A (ja) | 1990-02-02 | 1990-02-02 | 焦点検出装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2024065A JPH02244019A (ja) | 1990-02-02 | 1990-02-02 | 焦点検出装置 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1588783A Division JPS59142506A (ja) | 1983-02-02 | 1983-02-02 | 焦点検出装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02244019A true JPH02244019A (ja) | 1990-09-28 |
JPH0585883B2 JPH0585883B2 (enrdf_load_stackoverflow) | 1993-12-09 |
Family
ID=12128044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2024065A Granted JPH02244019A (ja) | 1990-02-02 | 1990-02-02 | 焦点検出装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02244019A (enrdf_load_stackoverflow) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009180778A (ja) * | 2008-01-29 | 2009-08-13 | Canon Inc | 焦点検出装置および撮像装置 |
US10425574B2 (en) | 2015-03-27 | 2019-09-24 | Olympus Corporation | Imaging device and focusing evaluation device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59107312A (ja) * | 1982-12-11 | 1984-06-21 | Canon Inc | 焦点検出信号処理方法 |
JPS59142506A (ja) * | 1983-02-02 | 1984-08-15 | Nippon Kogaku Kk <Nikon> | 焦点検出装置 |
-
1990
- 1990-02-02 JP JP2024065A patent/JPH02244019A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59107312A (ja) * | 1982-12-11 | 1984-06-21 | Canon Inc | 焦点検出信号処理方法 |
JPS59142506A (ja) * | 1983-02-02 | 1984-08-15 | Nippon Kogaku Kk <Nikon> | 焦点検出装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009180778A (ja) * | 2008-01-29 | 2009-08-13 | Canon Inc | 焦点検出装置および撮像装置 |
US10425574B2 (en) | 2015-03-27 | 2019-09-24 | Olympus Corporation | Imaging device and focusing evaluation device |
Also Published As
Publication number | Publication date |
---|---|
JPH0585883B2 (enrdf_load_stackoverflow) | 1993-12-09 |