JPS6462975A - Automatic focusing device - Google Patents
Automatic focusing deviceInfo
- Publication number
- JPS6462975A JPS6462975A JP62219670A JP21967087A JPS6462975A JP S6462975 A JPS6462975 A JP S6462975A JP 62219670 A JP62219670 A JP 62219670A JP 21967087 A JP21967087 A JP 21967087A JP S6462975 A JPS6462975 A JP S6462975A
- Authority
- JP
- Japan
- Prior art keywords
- screen
- automatic focusing
- logic circuit
- circuit part
- intricacy
- 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
Landscapes
- Automatic Focus Adjustment (AREA)
Abstract
PURPOSE:To effectively prevent a malfunction due to a camera blurring, a panning, etc., by controlling an automatic focusing action based on a value to normalize the detection result of the movement of a screen by means of the intricacy of the screen. CONSTITUTION:The output of an image pick-up element 2 is outputted through a preamplifier 3 and a process circuit 4, and simultaneously, inputted through a band-pass filter 5, a detecting circuit 6 and an A/D converter 24 to a logic circuit part 25. The logic circuit part 25 drives a motor 8 for driving a lens based on the value to normalize the detection result of the movement of the screen between frames by a memory 18 and a comparator 19 by means of data related to the intricacy of the whole screen by a comparator 22 and a counter 23, and the logic circuit part 25 controls the automatic focusing action.
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62219670A JP2659964B2 (en) | 1987-09-02 | 1987-09-02 | Automatic focusing device |
GB8820363A GB2209446B (en) | 1987-09-02 | 1988-08-26 | Automatic focusing device |
DE19883844873 DE3844873C2 (en) | 1987-09-02 | 1988-09-01 | Imaging device |
DE19883844874 DE3844874C2 (en) | 1987-09-02 | 1988-09-01 | Automatic focusing device |
DE3829733A DE3829733A1 (en) | 1987-09-02 | 1988-09-01 | AUTOMATIC FOCUSING DEVICE |
GB9117963A GB2247378B (en) | 1987-09-02 | 1991-08-20 | Automatic focusing device |
US07/845,768 US5164835A (en) | 1987-09-02 | 1992-03-02 | Automatic focusing device |
GB9207063A GB2251999B (en) | 1987-09-02 | 1992-03-31 | Automatic focusing device |
US08/277,701 US5422671A (en) | 1987-09-02 | 1994-07-20 | Automatic focus control by use of component value differences in an image sensing plane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62219670A JP2659964B2 (en) | 1987-09-02 | 1987-09-02 | Automatic focusing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6462975A true JPS6462975A (en) | 1989-03-09 |
JP2659964B2 JP2659964B2 (en) | 1997-09-30 |
Family
ID=16739136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62219670A Expired - Fee Related JP2659964B2 (en) | 1987-09-02 | 1987-09-02 | Automatic focusing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2659964B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7616252B2 (en) | 2005-04-15 | 2009-11-10 | Sony Corporation | Control apparatus, control method, computer program, and camera |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58129878A (en) * | 1982-01-27 | 1983-08-03 | Hitachi Ltd | Automatic focusing device |
JPS58146183A (en) * | 1982-02-24 | 1983-08-31 | Sanyo Electric Co Ltd | Automatic focusing device |
-
1987
- 1987-09-02 JP JP62219670A patent/JP2659964B2/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58129878A (en) * | 1982-01-27 | 1983-08-03 | Hitachi Ltd | Automatic focusing device |
JPS58146183A (en) * | 1982-02-24 | 1983-08-31 | Sanyo Electric Co Ltd | Automatic focusing device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7616252B2 (en) | 2005-04-15 | 2009-11-10 | Sony Corporation | Control apparatus, control method, computer program, and camera |
Also Published As
Publication number | Publication date |
---|---|
JP2659964B2 (en) | 1997-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |