JPS634184Y2 - - Google Patents
Info
- Publication number
- JPS634184Y2 JPS634184Y2 JP178087U JP178087U JPS634184Y2 JP S634184 Y2 JPS634184 Y2 JP S634184Y2 JP 178087 U JP178087 U JP 178087U JP 178087 U JP178087 U JP 178087U JP S634184 Y2 JPS634184 Y2 JP S634184Y2
- Authority
- JP
- Japan
- Prior art keywords
- output
- focus
- circuit
- contrast
- difference
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 32
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 230000007423 decrease Effects 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Focusing (AREA)
- Indication In Cameras, And Counting Of Exposures (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP178087U JPS634184Y2 (fr) | 1987-01-09 | 1987-01-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP178087U JPS634184Y2 (fr) | 1987-01-09 | 1987-01-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62125224U JPS62125224U (fr) | 1987-08-08 |
| JPS634184Y2 true JPS634184Y2 (fr) | 1988-02-02 |
Family
ID=30780004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP178087U Expired JPS634184Y2 (fr) | 1987-01-09 | 1987-01-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS634184Y2 (fr) |
-
1987
- 1987-01-09 JP JP178087U patent/JPS634184Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62125224U (fr) | 1987-08-08 |
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