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JPS54116224A - Automatic aperture control system single lens reflex camera - Google Patents

Automatic aperture control system single lens reflex camera

Info

Publication number
JPS54116224A
JPS54116224A JP13730978A JP13730978A JPS54116224A JP S54116224 A JPS54116224 A JP S54116224A JP 13730978 A JP13730978 A JP 13730978A JP 13730978 A JP13730978 A JP 13730978A JP S54116224 A JPS54116224 A JP S54116224A
Authority
JP
Japan
Prior art keywords
counterclockwise
lever
aperture
turn
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.)
Granted
Application number
JP13730978A
Other languages
Japanese (ja)
Other versions
JPS5916256B2 (en
Inventor
Hiroshi Ueda
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP53137309A priority Critical patent/JPS5916256B2/en
Publication of JPS54116224A publication Critical patent/JPS54116224A/en
Publication of JPS5916256B2 publication Critical patent/JPS5916256B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)
  • Cameras In General (AREA)
  • Diaphragms For Cameras (AREA)

Abstract

PURPOSE: To perform accurate automatic determination of aperture by resetting a stopping member perfectly to its initial position as an actuating member presses a movable member in the reset position of the actuating member by the control member provided between the stopping member and the movable member spring connected to this.
CONSTITUTION: The continued depression of a shutter button causes a sliding shaft to move and a lever 37 to turn counterclockwise. This also causes the levers 33, 36, spring 38 assuming a loop form moving body with the aperture presetting member 7 to which the aperture cooperating pin 6 of an interchangeable lens makes contact to turn counterclockwise while being controlled of the speed. At this time, a sector gear 27 is turned counterclockwise by the pawl part 33a of the level 33, by which a ratchet gear 30 is turned clockwise by way of a pinion 32. At the same time, a lever 23 turns counterclockwise and tries to turn a stop lever 22 counterclockwise with its eccentric pin 23a, but this turning is blocked because an armature 21 is held attracted to an electromagnet 20. The eccentric pin 23a acts as a control member to control the variations of the stroke of the lever 33 owing to working errors and mounting errors of parts.
COPYRIGHT: (C)1979,JPO&Japio
JP53137309A 1978-11-09 1978-11-09 Automatic aperture control single-lens reflex camera Expired JPS5916256B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53137309A JPS5916256B2 (en) 1978-11-09 1978-11-09 Automatic aperture control single-lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53137309A JPS5916256B2 (en) 1978-11-09 1978-11-09 Automatic aperture control single-lens reflex camera

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP14470273A Division JPS5652298B2 (en) 1973-12-28 1973-12-28

Publications (2)

Publication Number Publication Date
JPS54116224A true JPS54116224A (en) 1979-09-10
JPS5916256B2 JPS5916256B2 (en) 1984-04-14

Family

ID=15195663

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53137309A Expired JPS5916256B2 (en) 1978-11-09 1978-11-09 Automatic aperture control single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS5916256B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56150735A (en) * 1980-04-24 1981-11-21 Minolta Camera Co Ltd Diaphragm control device
JPS574034A (en) * 1980-06-10 1982-01-09 Kyocera Corp Motor driving device
CN111547639A (en) * 2020-05-12 2020-08-18 王利 Manual elevating gear of building engineering

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56150735A (en) * 1980-04-24 1981-11-21 Minolta Camera Co Ltd Diaphragm control device
JPS574034A (en) * 1980-06-10 1982-01-09 Kyocera Corp Motor driving device
JPH0467173B2 (en) * 1980-06-10 1992-10-27 Kyocera Corp
CN111547639A (en) * 2020-05-12 2020-08-18 王利 Manual elevating gear of building engineering

Also Published As

Publication number Publication date
JPS5916256B2 (en) 1984-04-14

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