JPS55127526A - Automatic focus control system - Google Patents
Automatic focus control systemInfo
- Publication number
- JPS55127526A JPS55127526A JP3511879A JP3511879A JPS55127526A JP S55127526 A JPS55127526 A JP S55127526A JP 3511879 A JP3511879 A JP 3511879A JP 3511879 A JP3511879 A JP 3511879A JP S55127526 A JPS55127526 A JP S55127526A
- Authority
- JP
- Japan
- Prior art keywords
- cpu
- memory
- subject
- drive motor
- user
- 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.)
- Pending
Links
Landscapes
- Automatic Focus Adjustment (AREA)
- Focusing (AREA)
Abstract
PURPOSE: To improve the speed and accuracy of focusing by the user's prior setting of the subject position to near the intended position.
CONSTITUTION: A CPU 5 is connected to the photo detector array 2 placed in the position conjugate with the film plane by way of a converter 4 and a memory 6, display device 7 and lens drive motor 10 are connected to the CPU 5. The user then beforehand sets the subject position to near the intended position and controls the focal point to the extent of permitting discrimination from background, etc. This is stored in the memory 6. Then, when the subject light passes through a photographing lens 1 and enters the photo detector array 2, the CPU 5 takes in the image data having been digitized, compares the same with the storage data of the memory 6 and drives a drive motor 10 according to the deviation thereof.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3511879A JPS55127526A (en) | 1979-03-27 | 1979-03-27 | Automatic focus control system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3511879A JPS55127526A (en) | 1979-03-27 | 1979-03-27 | Automatic focus control system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55127526A true JPS55127526A (en) | 1980-10-02 |
Family
ID=12433006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3511879A Pending JPS55127526A (en) | 1979-03-27 | 1979-03-27 | Automatic focus control system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55127526A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5922013A (en) * | 1982-07-29 | 1984-02-04 | Nippon Kogaku Kk <Nikon> | Automatic focusing device |
JPH02248937A (en) * | 1989-03-22 | 1990-10-04 | Nikon Corp | Auto-focus camera |
-
1979
- 1979-03-27 JP JP3511879A patent/JPS55127526A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5922013A (en) * | 1982-07-29 | 1984-02-04 | Nippon Kogaku Kk <Nikon> | Automatic focusing device |
JPH0466008B2 (en) * | 1982-07-29 | 1992-10-21 | Nippon Kogaku Kk | |
JPH02248937A (en) * | 1989-03-22 | 1990-10-04 | Nikon Corp | Auto-focus camera |
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