JPS56101131A - Driving circuit of electromagnetic shutter for single-lens reflex camera - Google Patents

Driving circuit of electromagnetic shutter for single-lens reflex camera

Info

Publication number
JPS56101131A
JPS56101131A JP311580A JP311580A JPS56101131A JP S56101131 A JPS56101131 A JP S56101131A JP 311580 A JP311580 A JP 311580A JP 311580 A JP311580 A JP 311580A JP S56101131 A JPS56101131 A JP S56101131A
Authority
JP
Japan
Prior art keywords
reflex camera
lens reflex
driving circuit
closing
sequence
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
JP311580A
Other languages
Japanese (ja)
Inventor
Tomio Kurosu
Kiyotaka Kaneko
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 JP311580A priority Critical patent/JPS56101131A/en
Publication of JPS56101131A publication Critical patent/JPS56101131A/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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cameras In General (AREA)
  • Shutters For Cameras (AREA)

Abstract

PURPOSE:To use the powder source efficiently, by making the operating power source voltage in the exposure switching operation different from the other sequence in the electromagnetic driving circuit of the lens shutter for single-lens reflex camera. CONSTITUTION:This circuit is the driving circuit of the lens shutter for single-lens reflex camera consisting of power sources E1 and E2, switch means S1-S6, OR gates OR1 and OR2, and electromagnetic driving means S. When pulses Ta, Tb, Tc and Td are input to input terminals A, B, C and D in order by closing of the release switch, gates for S1 and S3, S2 and S6, S5 and S3, and S1 and S6 are opened, and operations of closing-opening-closing-opening are performed from the first open state according to the sequence of the single-lens reflex camera. Since the exposure switching operation and the other sequence are performed through voltage conversion due to independent power sources or boosting circuit, the power supply efficiency is good, and accurate operations are performed even by small power sources.
JP311580A 1980-01-17 1980-01-17 Driving circuit of electromagnetic shutter for single-lens reflex camera Pending JPS56101131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP311580A JPS56101131A (en) 1980-01-17 1980-01-17 Driving circuit of electromagnetic shutter for single-lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP311580A JPS56101131A (en) 1980-01-17 1980-01-17 Driving circuit of electromagnetic shutter for single-lens reflex camera

Publications (1)

Publication Number Publication Date
JPS56101131A true JPS56101131A (en) 1981-08-13

Family

ID=11548345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP311580A Pending JPS56101131A (en) 1980-01-17 1980-01-17 Driving circuit of electromagnetic shutter for single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS56101131A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007013818A (en) * 2005-07-04 2007-01-18 Canon Inc Imaging apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011432A (en) * 1973-05-22 1975-02-05
DE2827857A1 (en) * 1978-06-24 1980-01-03 Prontor Werk Gauthier Gmbh METHOD AND DEVICE FOR SETTING TIME AND APERTURE IN PHOTOGRAPHIC CAMERAS
JPS552268A (en) * 1978-06-21 1980-01-09 Canon Inc Driving circuit of electromagnetically driven shutter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5011432A (en) * 1973-05-22 1975-02-05
JPS552268A (en) * 1978-06-21 1980-01-09 Canon Inc Driving circuit of electromagnetically driven shutter
DE2827857A1 (en) * 1978-06-24 1980-01-03 Prontor Werk Gauthier Gmbh METHOD AND DEVICE FOR SETTING TIME AND APERTURE IN PHOTOGRAPHIC CAMERAS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007013818A (en) * 2005-07-04 2007-01-18 Canon Inc Imaging apparatus

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