JPS5455429A - Automatic exposure control device for camera with blur detecting circuit - Google Patents
Automatic exposure control device for camera with blur detecting circuitInfo
- Publication number
- JPS5455429A JPS5455429A JP12217677A JP12217677A JPS5455429A JP S5455429 A JPS5455429 A JP S5455429A JP 12217677 A JP12217677 A JP 12217677A JP 12217677 A JP12217677 A JP 12217677A JP S5455429 A JPS5455429 A JP S5455429A
- Authority
- JP
- Japan
- Prior art keywords
- blur
- camera
- blur detecting
- converted
- exposure control
- 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
- Exposure Control For Cameras (AREA)
- Shutter-Related Mechanisms (AREA)
Abstract
PURPOSE: To restrict the minimum shutter speed in accordance with the technique of an Operator so as to effect the proper exposure without blur by providing a blur detecting mechanism having its output compensated in accordance with the information of the focal length of the lens mounted.
CONSTITUTION: A blur detecting light emitting source 14 and a blur detecting photelectric converting element 19 are fixed to the body of a camera, and a blur detecting mirror 17 is always directed toward the center of gravity of the earth. When an Operator has such as insufficient technique as to effect a high blur, the optical flux reflected upon the mirror 17 is abruptly moved on the element 19. As a result, high frequency signals are generated through a grating filter 18 by the element 19. Since the frequency corresponds to the blur of the camera, the number of pulses for a preset time is counted and converted in a D/A manner. The pulses thus converted are further converted into a voltage which is fed an exposure control circuit to restrict the lowest speed of the shutter time second so that a photograph having no blue can be obtained
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12217677A JPS5455429A (en) | 1977-10-12 | 1977-10-12 | Automatic exposure control device for camera with blur detecting circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12217677A JPS5455429A (en) | 1977-10-12 | 1977-10-12 | Automatic exposure control device for camera with blur detecting circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5455429A true JPS5455429A (en) | 1979-05-02 |
Family
ID=14829447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12217677A Pending JPS5455429A (en) | 1977-10-12 | 1977-10-12 | Automatic exposure control device for camera with blur detecting circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5455429A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5734533A (en) * | 1980-08-11 | 1982-02-24 | Mamiya Koki Kk | Adjusting method of exposure in automatic exposure camera |
JPS59222823A (en) * | 1983-05-31 | 1984-12-14 | Nippon Kogaku Kk <Nikon> | Camera prevented from unintentional movement of hand |
US4772117A (en) * | 1986-05-27 | 1988-09-20 | Minolta Camera Kabushiki Kaisha | Focus detecting device having blur detecting function |
US5072251A (en) * | 1988-01-12 | 1991-12-10 | Canon Kabushiki Kaisha | Blur detecting apparatus |
JPH05249554A (en) * | 1993-01-20 | 1993-09-28 | Nikon Corp | Jiggle correcting camera |
JPH05265069A (en) * | 1992-12-21 | 1993-10-15 | Nikon Corp | Camera capable of preventing jiggling |
US5526045A (en) * | 1983-12-29 | 1996-06-11 | Matsushita Electric Industrial Co., Ltd. | Camera apparatus which automatically corrects image fluctuations |
US5940630A (en) * | 1991-09-10 | 1999-08-17 | Canon Kabushiki Kaisha | System having antivibration faculty |
-
1977
- 1977-10-12 JP JP12217677A patent/JPS5455429A/en active Pending
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5734533A (en) * | 1980-08-11 | 1982-02-24 | Mamiya Koki Kk | Adjusting method of exposure in automatic exposure camera |
JPS59222823A (en) * | 1983-05-31 | 1984-12-14 | Nippon Kogaku Kk <Nikon> | Camera prevented from unintentional movement of hand |
JPH047491B2 (en) * | 1983-05-31 | 1992-02-12 | Nippon Kogaku Kk | |
US5526045A (en) * | 1983-12-29 | 1996-06-11 | Matsushita Electric Industrial Co., Ltd. | Camera apparatus which automatically corrects image fluctuations |
US4772117A (en) * | 1986-05-27 | 1988-09-20 | Minolta Camera Kabushiki Kaisha | Focus detecting device having blur detecting function |
US5072251A (en) * | 1988-01-12 | 1991-12-10 | Canon Kabushiki Kaisha | Blur detecting apparatus |
US5940630A (en) * | 1991-09-10 | 1999-08-17 | Canon Kabushiki Kaisha | System having antivibration faculty |
JPH05265069A (en) * | 1992-12-21 | 1993-10-15 | Nikon Corp | Camera capable of preventing jiggling |
JPH05249554A (en) * | 1993-01-20 | 1993-09-28 | Nikon Corp | Jiggle correcting camera |
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