JPS5455429A - Automatic exposure control device for camera with blur detecting circuit - Google Patents

Automatic exposure control device for camera with blur detecting circuit

Info

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
Application number
JP12217677A
Other languages
Japanese (ja)
Inventor
Tokuichi Tsunekawa
Toshio Sakane
Makoto Masunaga
Mitsuya Hosoe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP12217677A priority Critical patent/JPS5455429A/en
Publication of JPS5455429A publication Critical patent/JPS5455429A/en
Pending legal-status Critical Current

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
JP12217677A 1977-10-12 1977-10-12 Automatic exposure control device for camera with blur detecting circuit Pending JPS5455429A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (9)

* Cited by examiner, † Cited by third party
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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