JPS57204521A - Driving mechanism for diaphragm and movable reflecting mirror of single-lens reflex camera - Google Patents

Driving mechanism for diaphragm and movable reflecting mirror of single-lens reflex camera

Info

Publication number
JPS57204521A
JPS57204521A JP9064781A JP9064781A JPS57204521A JP S57204521 A JPS57204521 A JP S57204521A JP 9064781 A JP9064781 A JP 9064781A JP 9064781 A JP9064781 A JP 9064781A JP S57204521 A JPS57204521 A JP S57204521A
Authority
JP
Japan
Prior art keywords
diaphragm
releases
release lever
lens reflex
reflecting mirror
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
JP9064781A
Other languages
Japanese (ja)
Inventor
Kazuyuki Nemoto
Ichiro Morimoto
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.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus Optical Co Ltd
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 Olympus Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP9064781A priority Critical patent/JPS57204521A/en
Publication of JPS57204521A publication Critical patent/JPS57204521A/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)

Abstract

PURPOSE:To eliminating irregularity of exposure due to the bounding of a diaphragm by delaying the springing-up operation of a mirror through a speed adjusting device in the diaphragm and mirror driving mechanism of a single-lens reflex camera. CONSTITUTION:When an electromagnet 64 releases an attracted piece 65 in a charging state, an actuation member 61 presses levers 29 and 40. Since a diaphragm release lever 29 releases a diaphragm driving member 9, stopping-down operation starts. On the other hand, a speed adjusting mechanism release lever 40 releases the pin 53 of a sector gear 41, so a speed adjusting mechanism consisting of a pinion 48, an escape wheel 47, and a pallet fork 29 operates. The sector gear rotates at a low speed and after the preset time when the bounding of a diaphragm decreases sufficiently to a suppressed value, a pin 55 presses a release lever 11 to release a reflecting mirror driving member 5.
JP9064781A 1981-06-11 1981-06-11 Driving mechanism for diaphragm and movable reflecting mirror of single-lens reflex camera Pending JPS57204521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9064781A JPS57204521A (en) 1981-06-11 1981-06-11 Driving mechanism for diaphragm and movable reflecting mirror of single-lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9064781A JPS57204521A (en) 1981-06-11 1981-06-11 Driving mechanism for diaphragm and movable reflecting mirror of single-lens reflex camera

Publications (1)

Publication Number Publication Date
JPS57204521A true JPS57204521A (en) 1982-12-15

Family

ID=14004296

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9064781A Pending JPS57204521A (en) 1981-06-11 1981-06-11 Driving mechanism for diaphragm and movable reflecting mirror of single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS57204521A (en)

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