JPH0378831B2 - - Google Patents
Info
- Publication number
- JPH0378831B2 JPH0378831B2 JP56190110A JP19011081A JPH0378831B2 JP H0378831 B2 JPH0378831 B2 JP H0378831B2 JP 56190110 A JP56190110 A JP 56190110A JP 19011081 A JP19011081 A JP 19011081A JP H0378831 B2 JPH0378831 B2 JP H0378831B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- level
- frequency
- pulse
- focus
- 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 11
- 238000005070 sampling Methods 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56190110A JPS5892173A (ja) | 1981-11-27 | 1981-11-27 | 焦点検出装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56190110A JPS5892173A (ja) | 1981-11-27 | 1981-11-27 | 焦点検出装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5892173A JPS5892173A (ja) | 1983-06-01 |
| JPH0378831B2 true JPH0378831B2 (fr) | 1991-12-16 |
Family
ID=16252538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56190110A Granted JPS5892173A (ja) | 1981-11-27 | 1981-11-27 | 焦点検出装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5892173A (fr) |
-
1981
- 1981-11-27 JP JP56190110A patent/JPS5892173A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5892173A (ja) | 1983-06-01 |
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