WO2009128668A2 - 렌즈 구동 장치 - Google Patents
렌즈 구동 장치 Download PDFInfo
- Publication number
- WO2009128668A2 WO2009128668A2 PCT/KR2009/001990 KR2009001990W WO2009128668A2 WO 2009128668 A2 WO2009128668 A2 WO 2009128668A2 KR 2009001990 W KR2009001990 W KR 2009001990W WO 2009128668 A2 WO2009128668 A2 WO 2009128668A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carrier
- magnetic member
- yoke
- spring
- lens driving
- Prior art date
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated focusing
-
- 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
- G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
Definitions
- the present invention relates to a lens driving apparatus.
- the camera built in the electronic device is also made small.
- the carrier in which the lens is installed in the camera is supported by a spring, there is a problem that the zero point of the lens is shifted because the carrier is not disposed at a predetermined position due to assembly errors or deformation of the spring constituting the camera.
- the embodiment provides a lens driving apparatus with a new structure.
- the embodiment provides a lens driving apparatus in which a carrier provided with a lens can be disposed at a predetermined position.
- the embodiment provides a lens driving apparatus capable of preventing excessive flow of the lens by an impact from the outside of the installed carrier.
- Lens driving apparatus includes a housing; A yoke installed inside the housing; A magnet fixed to the yoke; A carrier disposed inside the yoke and in which a lens is installed; A coil coupled to the carrier to interact with the magnet; A spring that elastically supports the carrier; And a magnetic member coupled to the carrier.
- the embodiment can provide a lens driving apparatus having a new structure.
- the embodiment can provide a lens driving apparatus in which a carrier provided with a lens can be disposed at a predetermined position.
- the embodiment can provide a lens driving apparatus that can prevent the lens from excessively flowing by an impact from the outside of the carrier provided.
- FIG. 1 is a partially exploded perspective view of a lens driving apparatus according to the embodiment.
- FIG. 2 is a cross-sectional view of the lens driving apparatus of FIG. 1 taken along line A-A of FIG. 1.
- each layer is exaggerated, omitted, or schematically illustrated for convenience and clarity of description.
- the size of each component does not necessarily reflect the actual size.
- FIG. 1 is a partially exploded perspective view of a lens driving apparatus according to an embodiment
- FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1.
- a housing 110 having a predetermined space formed therein is provided.
- the housing 110 includes a base 111 and a cover 115 disposed above the base 111 and coupled to the base 111.
- a first through hole 112 is formed in the base 111, and a second through hole 116 is formed in the cover 115.
- the yoke 120 is fixed to the inner circumferential surface of the housing 110.
- the yoke 120 includes a rectangular frame-shaped outer yoke 121 having an outer circumferential surface fixed to the housing 110, a ring-shaped inner yoke 123 disposed inside the outer yoke 121, and the outer yoke. And a connection yoke 125 connecting the 121 and the inner yoke 123.
- the outer yoke 121, the connecting yoke 125, and the inner yoke 123 may be integrally formed.
- the inner side of the inner yoke 123 is provided with a cylindrical carrier 130 is capable of lifting.
- the lens 200 is coupled to the carrier 130 so that the lens 200 moves together with the movement of the carrier 130.
- the magnet 140 is fixed to the inner circumferential surface of the outer yoke 121, and the coil 150 is fixed to the outer circumferential surface of the carrier 130 to face the magnet 140. Therefore, when a current is supplied to the coil 150, the coil 150 is moved upward by an electromagnetic force acting between the coil 150 and the magnet 140, and coupled to the coil 150.
- the carrier 130 also moves upward.
- a ring-shaped upper spacer 161 is provided between an upper surface of the yoke 120 and a lower surface of the cover 115, and an elastic space between the lower surface of the yoke 120 and the upper surface of the base 111.
- Ring-shaped lower spacers 165 are respectively provided.
- the upper spacers 161 and the lower spacers 165 compensate for dimensional or assembly errors of the housing 110 or the yoke 120 by elasticity.
- the carrier 130 is supported by an upper spring 171 and a lower spring 175.
- the carrier (by the restoring force of the upper spring 171 and the lower spring 175) 130) descends to its original position.
- the upper spring 171 and the lower spring 175 may be formed in a shape in which a plurality of rings having different diameters are interconnected.
- the outer circumferential surface side of the upper spring 171 is fixed to the cover 115, and is disposed between the cover 115 and the upper spacer 161, and the inner circumferential surface side of the upper spring 171 is formed on the carrier 130. It is fixed to the upper part.
- the outer circumferential surface side of the lower spring 175 is fixed to the base 111, and is disposed between the base 111 and the lower spacer 165, and the inner circumferential surface side of the lower spring 175 is formed of the carrier 130. It is fixed to the lower part.
- a magnetic member 180 is installed on the carrier 130.
- the magnetic member 180 may be formed in a ring shape and may be fixed to an upper surface of the carrier 130 by an adhesive.
- the magnetic member 180 receives a force drawn by the magnet 140 disposed below the magnetic member 180. Therefore, the carrier 130 to which the magnetic member 180 is fixed receives a force moved downward, and the bottom surface of the carrier 130 is in close contact with the top surface of the base 111 by the force.
- the carrier 130 is raised by the interaction of the magnet 140 and the coil 150 in contact with the base 111, the spring due to the assembly error or external impact of the components constituting the lens driving device. Due to the deformation of the carrier 130 and the base 111 may be out of a predetermined position may occur.
- the carrier 130 elastically supported by the upper spring 171 and the lower spring 175 excessively flows, and the upper spring 171 and the lower spring 175 ) May be deformed or other parts may be damaged.
- the carrier 130 may be disposed at a predetermined position, and the carrier 130 may be subjected to external impact. This can prevent excessive flow.
- a protrusion 132 is formed on an upper surface of the carrier 130 and an insertion groove 182 is formed in the magnetic member 180 so that the magnetic member 180 can be more firmly fixed on the carrier 130. May be
- the magnetic member 180 Since the insertion groove 182 of the magnetic member 180 contacts the protrusion 132 in the radially outer and circumferential direction, the magnetic member 180 is not rotated or separated from the carrier 130.
- the magnetic member 180 is provided with a hole-shaped insertion hole to be firmly fixed to the carrier 130 by contacting the protrusion 132 in the radially outer side, the radially inner side, and the circumferential direction. Can be.
- the lens driving apparatus according to the embodiment may be applied to various types of camera apparatuses.
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Lens Barrels (AREA)
Abstract
Description
Claims (11)
- 하우징;상기 하우징 내부에 설치된 요크;상기 요크에 고정된 마그네트;상기 요크의 내측에 배치되며 렌즈가 설치되는 캐리어;상기 캐리어에 결합되어 상기 마그네트와 상호 작용하는 코일;상기 캐리어를 탄성 지지하는 스프링; 및상기 캐리어에 결합된 자성부재를 포함하는 렌즈 구동 장치.
- 제 1항에 있어서,상기 하우징은 베이스와, 상기 베이스의 상측에 배치되어 상기 베이스와 결합되는 커버를 포함하는 렌즈 구동 장치.
- 제 2항에 있어서,상기 스프링은 상부 스프링과 하부 스프링을 포함하고,상기 상부 스프링은 상기 캐리어의 상부 및 상기 커버에 고정되고, 상기 하부 스프링은 상기 케리어의 하부 및 상기 베이스에 고정되는 렌즈 구동 장치.
- 제 2항에 있어서,상기 커버와 상기 요크 사이에 탄성을 가진 상부 스페이서가 설치되고, 상기 베이스와 상기 요크 사이에는 탄성을 가진 하부 스페이서가 설치된 렌즈 구동 장치.
- 제 1항에 있어서,상기 자성부재는 상기 캐리어의 상면에 결합되는 렌즈 구동 장치.
- 제 1항에 있어서,상기 자성부재는 링 형상으로 형성된 렌즈 구동 장치.
- 제 1항에 있어서,상기 캐리어에는 돌기가 형성되고, 상기 자성부재에는 상기 돌기와 결합되는 삽입홈이 형성된 렌즈 구동 장치.
- 제 7항에 있어서,상기 자성부재는 상기 돌기와 반경 방향 외측 및 원주 방향에서 접촉하는 렌즈 구동 장치.
- 제 1항에 있어서,상기 캐리어에는 돌기가 형성되고, 상기 자성부재에는 상기 돌기와 결합되는 삽입홀이 형성되는 렌즈 구동 장치.
- 제 9항에 있어서,상기 자성부재는 상기 돌기와 반경 방향 외측, 반경 방향 내측, 및 원주 방향에서 접촉하는 렌즈 구동 장치.
- 제 1항에 있어서,상기 자성부재는 상기 마그네트보다 상측에 배치되는 렌즈 구동 장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2009801169175A CN102027408B (zh) | 2008-04-16 | 2009-04-16 | 镜头驱动装置 |
EP09732867A EP2267524B1 (en) | 2008-04-16 | 2009-04-16 | Lens drive device |
JP2011504930A JP5586583B2 (ja) | 2008-04-16 | 2009-04-16 | レンズ駆動装置 |
US12/988,015 US8310774B2 (en) | 2008-04-16 | 2009-04-16 | Lens drive device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2008-0035148 | 2008-04-16 | ||
KR1020080035148A KR100941436B1 (ko) | 2008-04-16 | 2008-04-16 | 렌즈 구동용 모터 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009128668A2 true WO2009128668A2 (ko) | 2009-10-22 |
WO2009128668A3 WO2009128668A3 (ko) | 2009-12-30 |
Family
ID=41199585
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2009/001990 WO2009128668A2 (ko) | 2008-04-16 | 2009-04-16 | 렌즈 구동 장치 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8310774B2 (ko) |
EP (1) | EP2267524B1 (ko) |
JP (1) | JP5586583B2 (ko) |
KR (1) | KR100941436B1 (ko) |
CN (1) | CN102027408B (ko) |
WO (1) | WO2009128668A2 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110116180A1 (en) * | 2009-11-19 | 2011-05-19 | Mcnex Co., Ltd. | Camera module with autofocus function |
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CN101937122A (zh) * | 2009-07-02 | 2011-01-05 | 鸿富锦精密工业(深圳)有限公司 | 镜头模组及其组装方法 |
JP5910817B2 (ja) * | 2012-01-31 | 2016-04-27 | ミツミ電機株式会社 | レンズホルダ駆動装置 |
EP3385767B1 (en) * | 2012-05-09 | 2020-06-24 | Lg Innotek Co. Ltd | Voice coil motor |
KR101951437B1 (ko) * | 2012-08-21 | 2019-02-22 | 엘지이노텍 주식회사 | 보이스 코일 모터 |
CN106461908B (zh) * | 2014-03-05 | 2019-08-16 | Lg伊诺特有限公司 | 透镜驱动装置和包含该透镜驱动装置的摄像头模块 |
KR101895965B1 (ko) * | 2014-09-24 | 2018-09-06 | 엘지이노텍 주식회사 | 카메라 모듈 |
JP7214333B2 (ja) | 2017-05-12 | 2023-01-30 | 大阪瓦斯株式会社 | 固定化中和剤、中和処理器、及びそれらの製造方法 |
USD902980S1 (en) * | 2018-01-12 | 2020-11-24 | Tdk Taiwan Corp. | Driving unit for a camera lens |
KR102072775B1 (ko) * | 2018-08-31 | 2020-02-04 | 엘지이노텍 주식회사 | 카메라 모듈 |
KR102284138B1 (ko) * | 2018-08-31 | 2021-08-02 | 엘지이노텍 주식회사 | 렌즈 구동장치 및 이를 포함하는 정보기술 기기 |
KR102045049B1 (ko) * | 2019-03-12 | 2019-11-14 | 엘지이노텍 주식회사 | 보이스 코일 모터 |
KR102131410B1 (ko) * | 2019-11-08 | 2020-07-08 | 엘지이노텍 주식회사 | 보이스 코일 모터 |
KR102221905B1 (ko) * | 2020-07-01 | 2021-03-02 | 엘지이노텍 주식회사 | 보이스 코일 모터 |
KR102482016B1 (ko) * | 2021-04-21 | 2022-12-27 | 엘지이노텍 주식회사 | 보이스 코일 모터 |
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2008
- 2008-04-16 KR KR1020080035148A patent/KR100941436B1/ko active IP Right Grant
-
2009
- 2009-04-16 EP EP09732867A patent/EP2267524B1/en active Active
- 2009-04-16 CN CN2009801169175A patent/CN102027408B/zh active Active
- 2009-04-16 JP JP2011504930A patent/JP5586583B2/ja active Active
- 2009-04-16 WO PCT/KR2009/001990 patent/WO2009128668A2/ko active Application Filing
- 2009-04-16 US US12/988,015 patent/US8310774B2/en active Active
Non-Patent Citations (2)
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110116180A1 (en) * | 2009-11-19 | 2011-05-19 | Mcnex Co., Ltd. | Camera module with autofocus function |
CN102073194A (zh) * | 2009-11-19 | 2011-05-25 | 美细耐斯电子有限公司 | 具有自动聚焦功能的相机模块 |
US8254046B2 (en) | 2009-11-19 | 2012-08-28 | Mcnex Co., Ltd. | Camera module with autofocus function |
Also Published As
Publication number | Publication date |
---|---|
WO2009128668A3 (ko) | 2009-12-30 |
EP2267524A2 (en) | 2010-12-29 |
JP5586583B2 (ja) | 2014-09-10 |
CN102027408B (zh) | 2013-12-11 |
KR20090109759A (ko) | 2009-10-21 |
US20110051265A1 (en) | 2011-03-03 |
CN102027408A (zh) | 2011-04-20 |
EP2267524B1 (en) | 2012-12-19 |
KR100941436B1 (ko) | 2010-02-11 |
JP2011518354A (ja) | 2011-06-23 |
US8310774B2 (en) | 2012-11-13 |
EP2267524A4 (en) | 2012-01-18 |
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