JPS56130729A - Mirror-up photographing control circuit of single-lens reflex camera - Google Patents

Mirror-up photographing control circuit of single-lens reflex camera

Info

Publication number
JPS56130729A
JPS56130729A JP3656580A JP3656580A JPS56130729A JP S56130729 A JPS56130729 A JP S56130729A JP 3656580 A JP3656580 A JP 3656580A JP 3656580 A JP3656580 A JP 3656580A JP S56130729 A JPS56130729 A JP S56130729A
Authority
JP
Japan
Prior art keywords
mirror
switch
shutter blades
control circuit
motor
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
JP3656580A
Other languages
Japanese (ja)
Inventor
Tomio Kurosu
Koichi Okajima
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.)
Nidec Precision Corp
Original Assignee
Nidec Copal Corp
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 Nidec Copal Corp filed Critical Nidec Copal Corp
Priority to JP3656580A priority Critical patent/JPS56130729A/en
Publication of JPS56130729A publication Critical patent/JPS56130729A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B19/00—Cameras
    • G03B19/02—Still-picture cameras
    • G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Cameras Including Film Mechanisms (AREA)
  • Cameras In General (AREA)
  • Diaphragms For Cameras (AREA)
  • Shutters For Cameras (AREA)

Abstract

PURPOSE:To secure the closure of shutter blades by providing a switch which switches corresponding to the up position and down position of a mirror-up operation member and by driving a motor which opens and closes the shutter blades on the basis of the information of the switch. CONSTITUTION:The opening and closure of shutter blades are controlled by driving a motor with pulses by inverting the direction of electric current, and switch S5 is provided which switches corresponding to the up position and down position of a mirror-up lever. While the mirror-up lever is set at the mirror-up position and switch S5 is opened, turning on the power switch for photographing inverts the output of AND gate circuit ANG1 to level H, and shutter motor M1 operates to close the shutter blades. Therefore, the shutter blades will securely be closed.
JP3656580A 1980-03-22 1980-03-22 Mirror-up photographing control circuit of single-lens reflex camera Pending JPS56130729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3656580A JPS56130729A (en) 1980-03-22 1980-03-22 Mirror-up photographing control circuit of single-lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3656580A JPS56130729A (en) 1980-03-22 1980-03-22 Mirror-up photographing control circuit of single-lens reflex camera

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP3462580A Division JPS56130728A (en) 1980-03-18 1980-03-18 Shutter release controlling circuit of single-lens reflex camera

Publications (1)

Publication Number Publication Date
JPS56130729A true JPS56130729A (en) 1981-10-13

Family

ID=12473276

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3656580A Pending JPS56130729A (en) 1980-03-22 1980-03-22 Mirror-up photographing control circuit of single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS56130729A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113127U (en) * 1987-12-01 1988-07-21
JPH0640940U (en) * 1993-04-22 1994-05-31 株式会社ニコン Motor drive camera
JPH0882837A (en) * 1995-08-11 1996-03-26 Nikon Corp Motor-driven camera

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63113127U (en) * 1987-12-01 1988-07-21
JPH0640940U (en) * 1993-04-22 1994-05-31 株式会社ニコン Motor drive camera
JPH0882837A (en) * 1995-08-11 1996-03-26 Nikon Corp Motor-driven camera

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