JPS6227688B2 - - Google Patents
Info
- Publication number
- JPS6227688B2 JPS6227688B2 JP54139549A JP13954979A JPS6227688B2 JP S6227688 B2 JPS6227688 B2 JP S6227688B2 JP 54139549 A JP54139549 A JP 54139549A JP 13954979 A JP13954979 A JP 13954979A JP S6227688 B2 JPS6227688 B2 JP S6227688B2
- Authority
- JP
- Japan
- Prior art keywords
- focus
- signal
- distance
- short
- time
- 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 56
- 230000004044 response Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 206010028347 Muscle twitching Diseases 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Focusing (AREA)
- Automatic Focus Adjustment (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13954979A JPS5662220A (en) | 1979-10-26 | 1979-10-26 | Unstable operation preventing system of automatic focus detector |
US06/199,262 US4335942A (en) | 1979-10-26 | 1980-10-21 | Camera provided with automatic focus detector |
DE3040162A DE3040162C2 (de) | 1979-10-26 | 1980-10-24 | Automatische Scharfeinstelleinrichtung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13954979A JPS5662220A (en) | 1979-10-26 | 1979-10-26 | Unstable operation preventing system of automatic focus detector |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5662220A JPS5662220A (en) | 1981-05-28 |
JPS6227688B2 true JPS6227688B2 (fr) | 1987-06-16 |
Family
ID=15247841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13954979A Granted JPS5662220A (en) | 1979-10-26 | 1979-10-26 | Unstable operation preventing system of automatic focus detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5662220A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01223986A (ja) * | 1988-03-02 | 1989-09-07 | Sankyo Kk | 遊技機の回転ドラム装置 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0228508Y2 (fr) * | 1981-02-03 | 1990-07-31 | ||
JPS5852607A (ja) * | 1981-09-24 | 1983-03-28 | Nippon Kogaku Kk <Nikon> | 自動焦点調節装置 |
JPS593406A (ja) * | 1982-06-29 | 1984-01-10 | Olympus Optical Co Ltd | 焦点状態検出装置 |
JPS6231814A (ja) * | 1985-08-02 | 1987-02-10 | Matsushita Electric Ind Co Ltd | 自動焦点調節装置 |
JP2572678B2 (ja) * | 1990-10-09 | 1997-01-16 | 旭光学工業株式会社 | レンズシャッタ式ズームレンズカメラ |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52126225A (en) * | 1976-04-15 | 1977-10-22 | Asahi Optical Co Ltd | Automatic focusing unit control circuit for ignoring pseudoofocus position detection signal |
-
1979
- 1979-10-26 JP JP13954979A patent/JPS5662220A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52126225A (en) * | 1976-04-15 | 1977-10-22 | Asahi Optical Co Ltd | Automatic focusing unit control circuit for ignoring pseudoofocus position detection signal |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01223986A (ja) * | 1988-03-02 | 1989-09-07 | Sankyo Kk | 遊技機の回転ドラム装置 |
Also Published As
Publication number | Publication date |
---|---|
JPS5662220A (en) | 1981-05-28 |
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