JPS5386208A - Photograph aperture control method - Google Patents

Photograph aperture control method

Info

Publication number
JPS5386208A
JPS5386208A JP15713776A JP15713776A JPS5386208A JP S5386208 A JPS5386208 A JP S5386208A JP 15713776 A JP15713776 A JP 15713776A JP 15713776 A JP15713776 A JP 15713776A JP S5386208 A JPS5386208 A JP S5386208A
Authority
JP
Japan
Prior art keywords
control method
aperture control
photograph
photograph aperture
iris
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
JP15713776A
Other languages
Japanese (ja)
Other versions
JPS6260686B2 (en
Inventor
Toshimitsu Harada
Michio Yagi
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 JP15713776A priority Critical patent/JPS5386208A/en
Publication of JPS5386208A publication Critical patent/JPS5386208A/en
Publication of JPS6260686B2 publication Critical patent/JPS6260686B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Exposure Control For Cameras (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

PURPOSE: To simplify an iris control structure and control it at high precision, wherein a motor is used, which can quickly be stopped by giving an electric energy and provides a pulse signal, which is counted to detect the position of the iris.
COPYRIGHT: (C)1978,JPO&Japio
JP15713776A 1976-12-24 1976-12-24 Photograph aperture control method Granted JPS5386208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15713776A JPS5386208A (en) 1976-12-24 1976-12-24 Photograph aperture control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15713776A JPS5386208A (en) 1976-12-24 1976-12-24 Photograph aperture control method

Publications (2)

Publication Number Publication Date
JPS5386208A true JPS5386208A (en) 1978-07-29
JPS6260686B2 JPS6260686B2 (en) 1987-12-17

Family

ID=15642999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15713776A Granted JPS5386208A (en) 1976-12-24 1976-12-24 Photograph aperture control method

Country Status (1)

Country Link
JP (1) JPS5386208A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63155039A (en) * 1986-12-18 1988-06-28 Canon Inc Diaphragm controller using step-motor
US5177452A (en) * 1989-12-25 1993-01-05 Nec Corporation Stabilized circuit of high output power transistor for microwave and milliwave

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830928A (en) * 1971-08-26 1973-04-23
JPS49135628A (en) * 1973-04-26 1974-12-27
JPS5075031A (en) * 1973-11-01 1975-06-20
JPS50116027A (en) * 1974-02-25 1975-09-11

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830928A (en) * 1971-08-26 1973-04-23
JPS49135628A (en) * 1973-04-26 1974-12-27
JPS5075031A (en) * 1973-11-01 1975-06-20
JPS50116027A (en) * 1974-02-25 1975-09-11

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63155039A (en) * 1986-12-18 1988-06-28 Canon Inc Diaphragm controller using step-motor
US5177452A (en) * 1989-12-25 1993-01-05 Nec Corporation Stabilized circuit of high output power transistor for microwave and milliwave

Also Published As

Publication number Publication date
JPS6260686B2 (en) 1987-12-17

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