JPS57108806A - Automatic focus controller - Google Patents

Automatic focus controller

Info

Publication number
JPS57108806A
JPS57108806A JP18443080A JP18443080A JPS57108806A JP S57108806 A JPS57108806 A JP S57108806A JP 18443080 A JP18443080 A JP 18443080A JP 18443080 A JP18443080 A JP 18443080A JP S57108806 A JPS57108806 A JP S57108806A
Authority
JP
Japan
Prior art keywords
lens
frame
force
mobile part
flowed
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
JP18443080A
Other languages
Japanese (ja)
Inventor
Hiroshi Matsumoto
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 JP18443080A priority Critical patent/JPS57108806A/en
Publication of JPS57108806A publication Critical patent/JPS57108806A/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
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lens Barrels (AREA)

Abstract

PURPOSE:To realize the atomatic control of the position of a lens, by adding a permanent magnet to either of a mobile part to fix the lens and a part to support the mobile part and then an electromagnetic coil to the other part, respectively and varying the quantity of the current which is flowed to the electromagnetic coil. CONSTITUTION:A ring-shaped permanent magnet 13 having the N and S poles at its inside and outside respectively is fixed to the outer circumference of a lens frame 11 at a mobile part where a lens is fixed. Then an electromagnetic coil 15 with a lead wire 17 wound along its circular circumference is fixed opposite to the magnet 13 to the inside of a sleeve 10 which holds the mobile part. The force is previously applied to the frame 11 in the direction Y, and the current is flowed to the coil 15. As a result, a magnetic field is caused to apply the force to the magnet 13. Thus the force is applied to move the frame 11 to the direction X. The frame 11 can be moved to an optional position by controlling the force applied to the direction Y and the quantity of current flowed to the coil 15. Thus the control is possible for the focal point.
JP18443080A 1980-12-25 1980-12-25 Automatic focus controller Pending JPS57108806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18443080A JPS57108806A (en) 1980-12-25 1980-12-25 Automatic focus controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18443080A JPS57108806A (en) 1980-12-25 1980-12-25 Automatic focus controller

Publications (1)

Publication Number Publication Date
JPS57108806A true JPS57108806A (en) 1982-07-07

Family

ID=16153008

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18443080A Pending JPS57108806A (en) 1980-12-25 1980-12-25 Automatic focus controller

Country Status (1)

Country Link
JP (1) JPS57108806A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810706A (en) * 1981-07-14 1983-01-21 Canon Inc Lens barrel
EP0103929A2 (en) * 1982-09-16 1984-03-28 Philips Patentverwaltung GmbH Optical unit for guidance and alignment of a radiator beam
JPS59164036U (en) * 1983-04-15 1984-11-02 オリンパス光学工業株式会社 sector electromagnetic drive
JPS63172109A (en) * 1987-01-09 1988-07-15 Matsushita Electric Ind Co Ltd Auto-focusing actuator
EP0469532A2 (en) * 1990-07-31 1992-02-05 Canon Kabushiki Kaisha Optical apparatus provided with a driving unit for moving a lens
US5828503A (en) * 1994-11-17 1998-10-27 Canon Kabushiki Kaisha Driving device and optical apparatus having the same
EP1148368A2 (en) * 2000-04-20 2001-10-24 Carl Zeiss Device for combining housings or mountings for optical elements
JP2012133393A (en) * 2006-12-01 2012-07-12 Flextronics Ap Llc Actuated stepper lens camera module
WO2015178126A1 (en) * 2014-05-22 2015-11-26 オリンパス株式会社 Imaging device and endoscope
WO2016166857A1 (en) * 2015-04-15 2016-10-20 オリンパス株式会社 Optical unit and endoscope
JP2017063845A (en) * 2015-09-28 2017-04-06 オリンパス株式会社 Optical device and endoscope

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53138329A (en) * 1977-05-09 1978-12-02 Hiroshi Mito Distance adjusting device for interchangeable lens associated with automatic focusing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53138329A (en) * 1977-05-09 1978-12-02 Hiroshi Mito Distance adjusting device for interchangeable lens associated with automatic focusing device

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5810706A (en) * 1981-07-14 1983-01-21 Canon Inc Lens barrel
EP0103929A2 (en) * 1982-09-16 1984-03-28 Philips Patentverwaltung GmbH Optical unit for guidance and alignment of a radiator beam
JPS59164036U (en) * 1983-04-15 1984-11-02 オリンパス光学工業株式会社 sector electromagnetic drive
JPS63172109A (en) * 1987-01-09 1988-07-15 Matsushita Electric Ind Co Ltd Auto-focusing actuator
EP0469532A2 (en) * 1990-07-31 1992-02-05 Canon Kabushiki Kaisha Optical apparatus provided with a driving unit for moving a lens
US5289318A (en) * 1990-07-31 1994-02-22 Canon Kabushiki Kaisha Optical apparatus provided with a driving unit for moving a lens
US5572372A (en) * 1990-07-31 1996-11-05 Canon Kabushiki Kaisha Optical apparatus provided with a driving unit for moving a lens
US5828503A (en) * 1994-11-17 1998-10-27 Canon Kabushiki Kaisha Driving device and optical apparatus having the same
EP1148368A2 (en) * 2000-04-20 2001-10-24 Carl Zeiss Device for combining housings or mountings for optical elements
EP1148368A3 (en) * 2000-04-20 2004-01-14 Carl Zeiss Device for combining housings or mountings for optical elements
JP2012133393A (en) * 2006-12-01 2012-07-12 Flextronics Ap Llc Actuated stepper lens camera module
JP2014194558A (en) * 2006-12-01 2014-10-09 Digitaloptics Corp Drive type stepping lens camera module
WO2015178126A1 (en) * 2014-05-22 2015-11-26 オリンパス株式会社 Imaging device and endoscope
CN106233181A (en) * 2014-05-22 2016-12-14 奥林巴斯株式会社 Camera head, endoscope
US9924854B2 (en) 2014-05-22 2018-03-27 Olympus Corporation Image pickup apparatus with magnetically movable lens
WO2016166857A1 (en) * 2015-04-15 2016-10-20 オリンパス株式会社 Optical unit and endoscope
CN107533207A (en) * 2015-04-15 2018-01-02 奥林巴斯株式会社 Optical unit and endoscope
JPWO2016166857A1 (en) * 2015-04-15 2018-02-08 オリンパス株式会社 Optical unit and endoscope
US10653301B2 (en) 2015-04-15 2020-05-19 Olympus Corporation Optical unit and endoscope
CN107533207B (en) * 2015-04-15 2020-07-07 奥林巴斯株式会社 Optical unit and endoscope
JP2017063845A (en) * 2015-09-28 2017-04-06 オリンパス株式会社 Optical device and endoscope

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