JPS5552009A - Fluid lens for automatic focusing - Google Patents

Fluid lens for automatic focusing

Info

Publication number
JPS5552009A
JPS5552009A JP12505778A JP12505778A JPS5552009A JP S5552009 A JPS5552009 A JP S5552009A JP 12505778 A JP12505778 A JP 12505778A JP 12505778 A JP12505778 A JP 12505778A JP S5552009 A JPS5552009 A JP S5552009A
Authority
JP
Japan
Prior art keywords
lens
fluid
moving
stationary
barrel
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
JP12505778A
Other languages
Japanese (ja)
Inventor
Hideyuki Kawazu
Hiroaki Nakamura
Takatora Ikegami
Katsuaki Takano
Shinichi Mihara
Kimihiko Nishioka
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 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 Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP12505778A priority Critical patent/JPS5552009A/en
Publication of JPS5552009A publication Critical patent/JPS5552009A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/12—Fluid-filled or evacuated lenses
    • G02B3/14—Fluid-filled or evacuated lenses of variable focal length

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Focusing (AREA)

Abstract

PURPOSE:To make the manufacture easy and enable the lens to be stably used over a long period of time by the simple constitution comprising disposing fluid between the mutually opposing lens faces of the stationary lens and moving lens provided in the lens barrel. CONSTITUTION:A stationary lens frame 12 and a moving lens frame 15 are connected by a movable bellows 18 and fluid 19 of the specified refractive index is contained in this bellows 18, whereby a fluid lens 20 which is formed between the mutually opposing lens faces of the stationary lens 11 and moving lens 14 is formed. A control unit 25 drives a pump 23 by the output signal of a focus detector 26 and the feedback signal from a head 17 indicating the position of the moving lens 14 with respect to the lens-barrel 13, thereby controlling the amount of the fluid 19 in the fluid lens 20 and letting the optical system including the stationary lens 11, fluid lens 20 and moving lens 14 focus.
JP12505778A 1978-10-13 1978-10-13 Fluid lens for automatic focusing Pending JPS5552009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12505778A JPS5552009A (en) 1978-10-13 1978-10-13 Fluid lens for automatic focusing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12505778A JPS5552009A (en) 1978-10-13 1978-10-13 Fluid lens for automatic focusing

Publications (1)

Publication Number Publication Date
JPS5552009A true JPS5552009A (en) 1980-04-16

Family

ID=14900743

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12505778A Pending JPS5552009A (en) 1978-10-13 1978-10-13 Fluid lens for automatic focusing

Country Status (1)

Country Link
JP (1) JPS5552009A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2634287A1 (en) * 1988-07-13 1990-01-19 Haiun Joseph Optical systems and transparent lenses having adjustable characteristics
EP1600100A1 (en) * 2004-05-27 2005-11-30 STM Medizintechnik Starnberg GmbH Zoom objective for an endoscope apparatus
KR100616647B1 (en) * 2004-12-28 2006-08-28 삼성전기주식회사 Lens System For Camera Module
EP1705507A1 (en) * 2005-03-22 2006-09-27 Sharp Kabushiki Kaisha Lens-position controller and imaging module
US7817359B2 (en) * 2007-10-11 2010-10-19 Hon Hai Precision Industry Co., Ltd. Lens module and camera module utilizing the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2634287A1 (en) * 1988-07-13 1990-01-19 Haiun Joseph Optical systems and transparent lenses having adjustable characteristics
EP1600100A1 (en) * 2004-05-27 2005-11-30 STM Medizintechnik Starnberg GmbH Zoom objective for an endoscope apparatus
US7889434B2 (en) 2004-05-27 2011-02-15 Stm Medizintechnik Starnberg Gmbh Zoom lens for endoscopic devices
KR100616647B1 (en) * 2004-12-28 2006-08-28 삼성전기주식회사 Lens System For Camera Module
EP1705507A1 (en) * 2005-03-22 2006-09-27 Sharp Kabushiki Kaisha Lens-position controller and imaging module
KR100769211B1 (en) 2005-03-22 2007-10-22 샤프 가부시키가이샤 Lens-position controller and imaging module
US7567754B2 (en) 2005-03-22 2009-07-28 Sharp Kabushiki Kaisha Fluid operated lens-position controller and imaging module
US7817359B2 (en) * 2007-10-11 2010-10-19 Hon Hai Precision Industry Co., Ltd. Lens module and camera module utilizing the same

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