JPS55156922A - Safety device of camera - Google Patents

Safety device of camera

Info

Publication number
JPS55156922A
JPS55156922A JP6499279A JP6499279A JPS55156922A JP S55156922 A JPS55156922 A JP S55156922A JP 6499279 A JP6499279 A JP 6499279A JP 6499279 A JP6499279 A JP 6499279A JP S55156922 A JPS55156922 A JP S55156922A
Authority
JP
Japan
Prior art keywords
aperture
pulse
specified
failure
stopping
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
JP6499279A
Other languages
Japanese (ja)
Inventor
Toshimitsu Harada
Kazuo Shiozawa
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta 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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP6499279A priority Critical patent/JPS55156922A/en
Publication of JPS55156922A publication Critical patent/JPS55156922A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To simplify automatic aperture mechanism and prevent the failure taking owing to the failure in the determination of aperture by providing an initial run section to an aperture driving member and stopping the progression of the taking operation when the specified signal fails to generate in this section.
CONSTITUTION: A pulse generator consisting of a slit plate 13 rotating together with the rotation of an automatic aperture determining ring 9, a stationary slit plate 14, a projector 15 and a photoelectric transducer 16 is provided. This is so controlled that when the automatic aperture operation is started upon disengagement of the stopping claw 10b of the stopper 10 of the ring 9, the pulse from the foregoing pulse generator is generated but when the pulse signal fails to generate during the rotation of the first specified angle, the taking operation does not progress. When the pulse signal reaches the specified aperture value pulse, the electromagnet 17 of a stopping device 17 is energized to actuate a stopping claw 17c and stop the ring 9, whereby the specified aperture diameter is determined. Thereby, the mechanism is simplified and the accident of the failure in the determination of the aperture may be prevented.
COPYRIGHT: (C)1980,JPO&Japio
JP6499279A 1979-05-28 1979-05-28 Safety device of camera Pending JPS55156922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6499279A JPS55156922A (en) 1979-05-28 1979-05-28 Safety device of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6499279A JPS55156922A (en) 1979-05-28 1979-05-28 Safety device of camera

Publications (1)

Publication Number Publication Date
JPS55156922A true JPS55156922A (en) 1980-12-06

Family

ID=13274056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6499279A Pending JPS55156922A (en) 1979-05-28 1979-05-28 Safety device of camera

Country Status (1)

Country Link
JP (1) JPS55156922A (en)

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