JPS56147132A - Autofocusing mechanism - Google Patents

Autofocusing mechanism

Info

Publication number
JPS56147132A
JPS56147132A JP5128680A JP5128680A JPS56147132A JP S56147132 A JPS56147132 A JP S56147132A JP 5128680 A JP5128680 A JP 5128680A JP 5128680 A JP5128680 A JP 5128680A JP S56147132 A JPS56147132 A JP S56147132A
Authority
JP
Japan
Prior art keywords
step motor
rotor
photographing lens
mirror body
stator
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
JP5128680A
Other languages
Japanese (ja)
Inventor
Jiro Ito
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP5128680A priority Critical patent/JPS56147132A/en
Publication of JPS56147132A publication Critical patent/JPS56147132A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals

Abstract

PURPOSE:To make the device small-sized and compact and improve the reliability, by constituting the rotor of the step motor on the outside circumference of the photographing lens into a ring. CONSTITUTION:The step motor which drives mirror body 41 having photographing lens 34 consists of rotor 35, stator 36, winding 37, and so on, and the space between the rotor and the stator is kept constant by bearing material 38. Gam groove 40 is linked to link pin 39 around mirror body 41, and the step motor is rotated by giving required pulses to the step motor, and thus, mirror body 41 is fed, and photographing lens 34 is moved to the focus position.
JP5128680A 1980-04-18 1980-04-18 Autofocusing mechanism Pending JPS56147132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5128680A JPS56147132A (en) 1980-04-18 1980-04-18 Autofocusing mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5128680A JPS56147132A (en) 1980-04-18 1980-04-18 Autofocusing mechanism

Publications (1)

Publication Number Publication Date
JPS56147132A true JPS56147132A (en) 1981-11-14

Family

ID=12882681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5128680A Pending JPS56147132A (en) 1980-04-18 1980-04-18 Autofocusing mechanism

Country Status (1)

Country Link
JP (1) JPS56147132A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110A (en) * 1982-06-25 1984-01-05 Mamiya Koki Kk Lens driving device of single-lens reflex camera, etc.
JPS59109A (en) * 1982-06-25 1984-01-05 Mamiya Koki Kk Device for driving lens of camera, etc.
JPS5994709A (en) * 1982-11-24 1984-05-31 Mamiya Koki Kk Camera lens driver
JPS59159113A (en) * 1983-03-01 1984-09-08 Mamiya Koki Kk Lens tube device
JPS59159112A (en) * 1983-03-01 1984-09-08 Mamiya Koki Kk Lens tube device
US4749269A (en) * 1985-08-05 1988-06-07 Canon Kabushiki Kaisha Lens drive device
US7203011B2 (en) 2004-09-22 2007-04-10 Fujifilm Corporation Lens device, imaging device using the same and cell-phone with camera using the same
US7206145B2 (en) 2004-09-22 2007-04-17 Fujifilm Corporation Lens driving device and electronic camera using the same
US7221526B2 (en) 2004-05-31 2007-05-22 Fijinon Corporation Lens driving device and imaging device
US7274120B2 (en) 2004-09-21 2007-09-25 Fujinon Corporation Drive unit and image pickup unit equipped with the drive unit
US7292396B2 (en) 2004-09-21 2007-11-06 Fujifilm Corporation Lens device, image pickup device and optical device
US7359631B2 (en) 2004-09-22 2008-04-15 Fujifilm Corporation Lens driving device, imaging device using the same, and small-sized electronics device using the same
US7582995B2 (en) 2004-09-22 2009-09-01 Fujinon Corporation Stepping motor, lens device using the same, and imaging device using the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430030A (en) * 1977-08-10 1979-03-06 Polaroid Corp Lenssfocus adjusting device
JPS54161929A (en) * 1978-06-12 1979-12-22 Olympus Optical Co Ltd Auto focusing moving mechanism

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5430030A (en) * 1977-08-10 1979-03-06 Polaroid Corp Lenssfocus adjusting device
JPS54161929A (en) * 1978-06-12 1979-12-22 Olympus Optical Co Ltd Auto focusing moving mechanism

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59110A (en) * 1982-06-25 1984-01-05 Mamiya Koki Kk Lens driving device of single-lens reflex camera, etc.
JPS59109A (en) * 1982-06-25 1984-01-05 Mamiya Koki Kk Device for driving lens of camera, etc.
JPS5994709A (en) * 1982-11-24 1984-05-31 Mamiya Koki Kk Camera lens driver
JPH043523B2 (en) * 1983-03-01 1992-01-23
JPS59159112A (en) * 1983-03-01 1984-09-08 Mamiya Koki Kk Lens tube device
JPS59159113A (en) * 1983-03-01 1984-09-08 Mamiya Koki Kk Lens tube device
US4749269A (en) * 1985-08-05 1988-06-07 Canon Kabushiki Kaisha Lens drive device
US7221526B2 (en) 2004-05-31 2007-05-22 Fijinon Corporation Lens driving device and imaging device
US7274120B2 (en) 2004-09-21 2007-09-25 Fujinon Corporation Drive unit and image pickup unit equipped with the drive unit
US7292396B2 (en) 2004-09-21 2007-11-06 Fujifilm Corporation Lens device, image pickup device and optical device
US7203011B2 (en) 2004-09-22 2007-04-10 Fujifilm Corporation Lens device, imaging device using the same and cell-phone with camera using the same
US7206145B2 (en) 2004-09-22 2007-04-17 Fujifilm Corporation Lens driving device and electronic camera using the same
US7359631B2 (en) 2004-09-22 2008-04-15 Fujifilm Corporation Lens driving device, imaging device using the same, and small-sized electronics device using the same
US7582995B2 (en) 2004-09-22 2009-09-01 Fujinon Corporation Stepping motor, lens device using the same, and imaging device using the same

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