WO2014109475A1 - Module de petite caméra - Google Patents

Module de petite caméra Download PDF

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Publication number
WO2014109475A1
WO2014109475A1 PCT/KR2013/010631 KR2013010631W WO2014109475A1 WO 2014109475 A1 WO2014109475 A1 WO 2014109475A1 KR 2013010631 W KR2013010631 W KR 2013010631W WO 2014109475 A1 WO2014109475 A1 WO 2014109475A1
Authority
WO
WIPO (PCT)
Prior art keywords
blade
housing
magnet
camera module
guide
Prior art date
Application number
PCT/KR2013/010631
Other languages
English (en)
Korean (ko)
Inventor
권기태
정상원
정회원
Original Assignee
(주)하이소닉
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 (주)하이소닉 filed Critical (주)하이소닉
Publication of WO2014109475A1 publication Critical patent/WO2014109475A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H5/00—Musical or noise- producing devices for additional toy effects other than acoustical
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144—Devices controlled by radiation
    • H01L27/146—Imager structures
    • H01L27/14601—Structural or functional details thereof
    • H01L27/14618—Containers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63H—TOYS, e.g. TOPS, DOLLS, HOOPS OR BUILDING BLOCKS
    • A63H33/00—Other toys
    • A63H33/16—Models made by folding paper
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K3/00—Rattles or like noise-producing devices, e.g. door-knockers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the present invention relates to a miniature camera module, wherein a miniature camera mounted on a portable terminal or the like moves a blade with a built-in lens in an optical axis direction to automatically adjust focus.
  • a small, lightweight camera module is provided.
  • Camera modules capable of implementing such auto focusing techniques include voice coil modules (VCM) using Lorentz force and piezo modules using piezoelectric piezoelectric effect.
  • VCM voice coil modules
  • piezo modules using piezoelectric piezoelectric effect.
  • FIG. 1 is an exploded perspective view of a conventional small camera module
  • Figure 2 is a cross-sectional structural view of a conventional small camera module
  • Figure 3 is a plan view of a conventional small camera module (see Publication No. 10-2010-0109831) .
  • the compact camera module using the conventional VCM the blade 110, the first magnet 121, the second magnet 122, the third magnet 123, the stator assembly ( 130, the guide member 140, the housing 180, and the cover 190.
  • the blade 110 has a lens mounted therein, and the stator assembly 130 includes a coil 131 and a yoke 133.
  • the blade 110 mounted with the first magnet 121 is moved upward and downward in the optical axis direction by the Lorentz force generated by applying a current to the coil 131 constituting the stator assembly 130. do.
  • first magnet 121 and the stator assembly 130 for driving the blade 110 in the up and down direction are composed of one each, and the guide member 140 is disposed at both sides thereof.
  • two or more guide members 140 are provided to maintain the left and right balance of the blade 110.
  • the conventional small camera module is provided with two or more guide members 140 to contact the blade 110 because it is difficult to maintain the left and right balance between the blade 110 and the uniaxial contact between the blade 110 and the guide member 140.
  • the present invention is to solve the above problems, to provide a small camera module that minimizes the tilting (tilting) that can occur when the blade is moved by the uniaxial contact of the blade and the guide portion, the blade can be moved smoothly. There is this.
  • the compact camera module of the present invention comprises: a housing in which a guide part is formed; A blade provided with a lens and having a locking mechanism to which the guide part is coupled to move along the guide part in the housing; A driving unit mounted to the housing and the blade to generate a driving force to move the blade; It includes, but the blade is provided with a mounting portion is a magnet is mounted, the magnetic body is mounted on one side of the housing in the direction facing the mounting portion, the guide portion, the magnetic body and the magnet is arranged to form a straight line, The blade is pulled in one direction of the housing by an attractive force generated between the magnetic body and the magnet, and is held in the opposite direction by the guide part.
  • the latch and the mounting portion are formed in opposite directions with respect to the lens.
  • the guide portion protrudes in an upward direction to be parallel to the optical axis of the lens, and the catch is penetrated in the vertical direction to insert the guide portion.
  • the housing may include a base on which the guide part protrudes; A cover coupled to an upper portion of the base to cover the blade; Consists of the guide portion, the protrusion is formed protruding from the base, the guide groove is formed in the other direction of the opposite direction of the one direction in which the drive unit is disposed, and the protrusion is inserted into the guide groove It is disposed between the blades, made of a guide ball in contact with the blade to support the blade in the other direction.
  • the left and right lengths of the magnets are longer than or equal to the left and right lengths of the magnetic material.
  • the housing has a polygonal shape
  • the driving unit includes a coil generating a driving force by electromagnetic interaction with the magnetic field generated by the magnet when the magnet and the magnetic body and the current are applied, wherein the coil and The magnetic body is mounted inside the one corner of the housing, the magnet is mounted to the mounting portion is disposed adjacent to the magnetic material and the coil, the guide portion and the catch is on the opposite side of the one corner of the housing where the magnet is disposed It is disposed inside the other corner formed.
  • Hall sensor Hall sensor
  • the compact camera module according to the present invention has the following effects.
  • the uniaxial contact of the blades with the blades guides the blades unbalanced, minimizing the tilting that can occur when the blades move, and smoothly moving the blades to improve the focusing performance of the camera.
  • the left and right length of the magnet is longer than or equal to the left and right length of the magnetic material, so that the magnetic force of the magnet acts on the magnetic body disposed at the center to easily maintain the center of gravity generated between the magnet and the magnetic body, Minimize left and right shake.
  • FIG. 1 is an exploded perspective view of a conventional small camera module
  • FIG. 2 is a cross-sectional structure diagram of a conventional small camera module
  • FIG. 3 is a plan view of a conventional compact camera module
  • FIG. 4 is a perspective view of a compact camera module according to an embodiment of the present invention.
  • FIG. 5 is an exploded perspective view of a small camera module according to an embodiment of the present invention.
  • FIG. 6 is an exploded perspective view of the small camera module according to the embodiment of the present invention.
  • FIG. 7 is a cross-sectional view taken along line A-A of FIG. 4;
  • FIG. 8 is a sectional view taken along line B-B in FIG. 4; FIG.
  • FIG. 4 is a perspective view of a small camera module according to an embodiment of the present invention
  • Figure 5 is an exploded perspective view of a small camera module according to an embodiment of the present invention
  • Figure 6 is a small camera module according to an embodiment of the present invention Another direction exploded perspective view
  • FIG. 7 is a cross-sectional view taken along line AA of FIG. 4
  • FIG. 8 is a cross-sectional view taken along line BB of FIG.
  • the compact camera module includes a housing 10, a blade 20, a driver 30, and a hall sensor 40.
  • the housing 10 is formed in a polygonal shape and the guide part 12 protrudes.
  • the housing 10 has a rectangular planar shape and includes a base 11 and a cover 16 coupled to the base 11.
  • the base 11 is provided with an image sensor (not shown), and the guide part 12 is formed to protrude.
  • the guide part 12 is formed to protrude upward in parallel with the optical axis of the lens L provided in the blade 20, the blade 20 is coupled.
  • the guide portion 12 is composed of a protrusion 13 and the guide ball 15, as shown in FIG.
  • the protrusion 13 is formed to protrude upward from the base 11, and a guide groove 14 is formed to open in an opposite direction to one side in which the driving unit 30 is disposed.
  • the guide groove 14 is opened in the other direction, which is opposite to the one direction in which the driving part 30 is disposed in the housing 10, and moves upward and downward on the protrusion 13. It is formed long.
  • the guide ball 15 is made up of a plurality is inserted into the guide groove 14 up and down, it is disposed between the protrusion 13 and the blade 20.
  • the guide ball 15 contacts the blade 20 to support the blade 20 in the other direction, and reduces friction generated when the blade 20 moves up and down.
  • the cover 16 is coupled to the upper portion of the base 11 to cover the blade 20.
  • the cover 16 is formed to penetrate the upper portion corresponding to the lens so that the light of the subject passes, and the light passing through the cover 16 through the lens is detected by the image sensor.
  • the blade 20 is provided with a lens L, and the engaging portion 21 to which the guide portion 12 is formed is formed to move along the guide portion 12 inside the housing 10.
  • the lens L is coupled to the portion indicated in the blade 20 although not actually shown in the figure.
  • the locking hole 21 is formed to penetrate in the vertical direction to insert the guide part 12.
  • the latch 21 is formed in an isosceles triangle shape as shown in Figure 7, the edge forming the diagonal (C) of the line adjacent to the direction in which the lens is coupled is formed to face the other direction, The diagonal portion C is in contact with the guide ball 15.
  • the shape of the locking hole 21 is not limited to the shape shown in the drawings, it may be made of a variety of shapes that the blade 20 can move smoothly.
  • the blade 20 has a mounting portion 22 to which the magnet 32 is mounted.
  • the latch 21 and the mounting portion 22 are formed in opposite directions with respect to the lens, and the mounting portion 22 is disposed on one side of the housing 10 in which the driving portion 30 is disposed. 21 is disposed on the other side of the housing 10.
  • the driving unit 30 includes a magnetic material 31, a magnet 32, and a coil 33, and a driving force for moving the blade 20 is generated.
  • the magnetic material 31 is mounted inside one corner of the housing 10 as shown in FIG.
  • the magnet 32 is mounted to the mounting portion 22 formed on the blade 20 and disposed adjacent to the magnetic material 31.
  • the coil 33 is disposed between the magnetic material 31 and the magnet 32 to move the blade 20 up and down by electromagnetic interaction with a magnetic field generated by the magnet 32 when a current is applied. Generate driving force.
  • a circuit board 34 mounted inside the housing 10 is disposed between the magnetic material 31 and the coil 33, and the coil 33 is mounted on the circuit board 34. do.
  • the guide part 12 and the locking hole 21 are disposed inside the other corner part formed on the opposite side of the one corner part of the housing 10 in which the magnet 32 is disposed, and the guide part 12 and the magnetic body ( 31 and the magnets 32 are arranged in a straight line.
  • An attraction force is generated between the magnet 32 and the magnetic material 31 such that the blade 20 on which the magnet 32 is mounted is pulled in the direction of the magnetic material 31, that is, in one direction of the housing 10. .
  • the left and right length of the magnet 32 is formed longer than the left and right length of the magnetic material (31).
  • the left and right lengths of the magnets 32 may be the same as the left and right lengths of the magnetic material 31, but preferably, the length of the magnets 32 is longer.
  • the Hall sensor 40 (Hall sensor) is mounted to the housing 10 to sense the position of the blade 20.
  • the Hall sensor 40 is mounted on the circuit board 34 mounted on the housing 10 and disposed on the coil 33, and the blade 20 moves up and down, and the magnet 32.
  • the position of the blade 20 is detected by detecting a change in the magnetic field distribution occurring in the.
  • the magnetic body 31 is mounted inside the housing 10 in one direction, and the circuit board 34 is disposed inside the magnetic body 31 and mounted in the housing 10.
  • the coil 33 and the hall sensor 40 are mounted on the circuit board 34.
  • the guide part 12 is inserted into the locking hole 21 and coupled to the upper part of the base 11.
  • the guide ball 15 is disposed between the blade 20 and the protruding portion 13, and the magnet 32 is mounted on the mounting portion 22, and the magnetic material 31 and the coil 33 are disposed on one side thereof. Disposed to face.
  • An attraction force is generated between the magnetic material 31 and the magnet 32 such that the blade 20 on which the magnet 32 is mounted is pulled in one direction, and the guide ball 15 is in contact with the blade 20. Support in the opposite direction.
  • the guide part 12, the magnetic material 31, and the magnet 32 are disposed to be in line with the center of the lens, the guide part 12, the magnetic material 31, and the magnet 32 are generated between the magnet 32 and the magnetic material 31 to act on the blade 20.
  • the attraction force and the reaction force for supporting the blade 20 in the opposite direction by the guide ball 15 is in a stable equilibrium.
  • the blade 20 can be stably supported only by uniaxial contact between the blade 20 and the guide ball 15 (an axis in which a plurality of guide balls are in contact with the driving unit in a straight line).
  • the guide ball 15 may minimize the tilting of the blade 20 while reducing the frictional force due to the vertical movement of the blade 20 in contact with the blade 20 in the interior of the locking hole (21). have.
  • the blade 20 and the guide portion 12 are difficult to maintain the left and right balance of the blade 20 when the uniaxial contact between the blade 20 is provided with two or more guide portions 12 The left and right balance of (20) was maintained.
  • the conventional small camera module includes two or more guide parts 12 and two or more support shafts contacting the blades 20, the friction surface increases when the blades 20 move up and down, respectively. If there is a difference in the frictional force generated in the friction surface of the housing or the shape tolerances of the housing 10 and the guide portion 12, the tilting occurs in the blade 20, the vertical movement of the blade 20 is not made smoothly The focusing performance may be degraded.
  • the compact camera module according to the present invention is easy to maintain the balance of the blade 20 only by uniaxial contact between the blade 20 and the guide part 12, and minimizes the support shaft where friction occurs, so that the blade 20 Minimizing tilting and smoothing up and down movement can improve the focusing performance of the camera.
  • the miniature camera module of the present invention is not limited to the above-described embodiment, and can be implemented in various modifications within the scope of the technical idea of the present invention.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Acoustics & Sound (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Signal Processing (AREA)
  • Studio Devices (AREA)

Abstract

La présente invention concerne un module de petite caméra, et plus particulièrement un module de petite caméra destiné à permettre à une lame dotée d'une lentille de se déplacer dans la direction de l'axe optique de façon à régler automatiquement la mise au point dans une petite caméra montée dans un terminal portable ou similaire. Un module de petite caméra selon la présente invention comprend: un boîtier doté d'une partie de guidage saillante; une lame dotée d'une lentille et d'un trou de fixation destiné à fixer la partie de guidage, la lame pouvant être déplacée à la suite de la partie de guidage dans le boîtier; et une partie d'entraînement liée au boîtier et à la lame afin d'entraîner la lame, caractérisé en ce que la lame comprend une partie de liaison servant à monter un aimant; en ce que le boîtier présente un côté équipé d'un corps magnétique faisant face à la partie de liaison; en ce que la partie de guidage, le corps magnétique et l'aimant sont disposés de façon à former une ligne droite; et en ce que la lame est tirée dans un sens latéral du boîtier par la force d'attraction entre le corps magnétique et l'aimant, et est retenue dans le sens opposé par la partie de guidage.
PCT/KR2013/010631 2013-01-11 2013-11-21 Module de petite caméra WO2014109475A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020130003407A KR101406016B1 (ko) 2013-01-11 2013-01-11 소형 카메라 모듈
KR10-2013-0003407 2013-01-11

Publications (1)

Publication Number Publication Date
WO2014109475A1 true WO2014109475A1 (fr) 2014-07-17

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Application Number Title Priority Date Filing Date
PCT/KR2013/010631 WO2014109475A1 (fr) 2013-01-11 2013-11-21 Module de petite caméra

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KR (1) KR101406016B1 (fr)
WO (1) WO2014109475A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106161902A (zh) * 2016-08-19 2016-11-23 京东方科技集团股份有限公司 一种摄像头模组、电子设备以及拍摄方法
CN106791329A (zh) * 2017-01-11 2017-05-31 广东欧珀移动通信有限公司 摄像头模组及终端
WO2020143011A1 (fr) * 2019-01-08 2020-07-16 瑞声通讯科技(常州)有限公司 Dispositif d'acquisition d'image et appareil électronique mobile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102608087B1 (ko) * 2016-04-05 2023-11-29 미쓰미덴기가부시기가이샤 렌즈 구동 장치, 카메라 모듈, 및 카메라 탑재 장치
KR102562142B1 (ko) * 2018-08-09 2023-08-01 삼성전기주식회사 카메라 모듈

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100005313A (ko) * 2008-07-07 2010-01-15 삼성전기주식회사 모바일 기기용 카메라모듈
US20100085474A1 (en) * 2008-10-03 2010-04-08 Fujifilm Corporation Camera module
JP2012225945A (ja) * 2009-08-25 2012-11-15 Sanyo Electric Co Ltd レンズ駆動装置及びこれを備えたカメラモジュール

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100005313A (ko) * 2008-07-07 2010-01-15 삼성전기주식회사 모바일 기기용 카메라모듈
US20100085474A1 (en) * 2008-10-03 2010-04-08 Fujifilm Corporation Camera module
JP2012225945A (ja) * 2009-08-25 2012-11-15 Sanyo Electric Co Ltd レンズ駆動装置及びこれを備えたカメラモジュール

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106161902A (zh) * 2016-08-19 2016-11-23 京东方科技集团股份有限公司 一种摄像头模组、电子设备以及拍摄方法
WO2018032926A1 (fr) * 2016-08-19 2018-02-22 京东方科技集团股份有限公司 Module de caméra, dispositif électronique et procédé de photographie
CN106161902B (zh) * 2016-08-19 2021-08-03 京东方科技集团股份有限公司 一种摄像头模组、电子设备以及拍摄方法
US11252310B2 (en) 2016-08-19 2022-02-15 Boe Technology Group Co., Ltd. Camera module, electronic device and photographing method
CN106791329A (zh) * 2017-01-11 2017-05-31 广东欧珀移动通信有限公司 摄像头模组及终端
CN106791329B (zh) * 2017-01-11 2019-09-13 Oppo广东移动通信有限公司 摄像头模组及终端
US10554867B2 (en) 2017-01-11 2020-02-04 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Camera module applied to terminal and terminal including same
WO2020143011A1 (fr) * 2019-01-08 2020-07-16 瑞声通讯科技(常州)有限公司 Dispositif d'acquisition d'image et appareil électronique mobile

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Publication number Publication date
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