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WO2019004583A1 - Module de caméra de terminal portable - Google Patents

Module de caméra de terminal portable Download PDF

Info

Publication number
WO2019004583A1
WO2019004583A1 PCT/KR2018/004990 KR2018004990W WO2019004583A1 WO 2019004583 A1 WO2019004583 A1 WO 2019004583A1 KR 2018004990 W KR2018004990 W KR 2018004990W WO 2019004583 A1 WO2019004583 A1 WO 2019004583A1
Authority
WO
WIPO (PCT)
Prior art keywords
carrier
ball guide
magnet
camera module
base
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.)
Ceased
Application number
PCT/KR2018/004990
Other languages
English (en)
Korean (ko)
Inventor
한민석
양시우
손원민
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.)
Rbk Emd Co ltd
Original Assignee
Rbk Emd 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 Rbk Emd Co ltd filed Critical Rbk Emd Co ltd
Publication of WO2019004583A1 publication Critical patent/WO2019004583A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • 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
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B5/02—Lateral adjustment of lens
    • 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

Definitions

  • the present invention relates to a camera module for a portable terminal, and more particularly, to a camera module for a portable terminal having a ball guide structure for adjusting a focus of the camera.
  • a camera module is manufactured in a small size and is applied to a portable terminal such as a smart phone or an IT device.
  • Such a camera module is manufactured by using an image sensor such as a CCD or a CMOS as a main component.
  • the camera module condenses an image of an object through the image sensor and is stored as data on a memory in a device such as a portable terminal. And outputted as an image through a display medium.
  • a high-resolution camera module capable of performing automatic focus adjustment, zooming, and the like is mounted on a small electronic device such as a portable terminal.
  • the auto-focusing or zooming function is performed while moving the lens barrel including one or more lenses along the optical axis by a predetermined distance.
  • the housing and the lens barrel are connected to each other by an elastic means such as a leaf spring or an elastic wire, and the lens barrel is supported by the elastic means.
  • an elastic means such as a leaf spring or an elastic wire
  • the camera module is miniaturized and increased in size, it is required to realize a longer driving distance with a smaller current input, and the strength of the elastic means is required to be designed in a decreasing direction.
  • Patent Document 10-0961127 is disclosed in Patent Document 10-0961127. 1 is a view schematically showing the structure of a conventional camera module.
  • the conventional camera module includes a housing, a fixed unit fixed in the housing, a lens barrel accommodated in the housing and accommodating at least one lens, a lens barrel supported to the fixed unit by a predetermined magnetic force, And a moving unit for moving the barrel along the optical axis.
  • the conventional camera module has two rows of ball members disposed on either side, the size of the magnet member 33 that can be mounted between the two rows of ball members is limited. Accordingly, it is difficult to increase the size of the ball member for stable movement of the lens barrel, and since the space for mounting the magnet member is narrow, the magnetic force efficiency is lowered due to the restriction of the size of the magnet member.
  • Patent Document 1 Korean Patent Registration No. 10-0961127 (Jun. 2010)
  • the present invention has been made to solve the above problems, and it is an object of the present invention to provide a zoom lens capable of effectively using an internal space, moving a lens position to raise a driving force for adjusting a focus of a camera, And a camera module for a portable terminal.
  • a camera module for a portable terminal comprising: a base having a receiving space therein; A carrier inserted in the accommodation space and moving in a direction parallel to the optical axis of the lens; A coil and a magnet for generating a driving force to move the carrier; A first yoke mounted on the base or the carrier and generating attraction between the magnet and the base; And a first ball guide portion and a second ball guide portion formed of a plurality of ball members for guiding the movement of the carrier between the base and the carrier, and attraction force generated between the magnet and the first yoke is transmitted to the first ball guide And the second ball guide portion supports the carrier against the rotational force.
  • the first guide groove is formed on one side of the carrier, and the first guide groove is formed on either side of the mounting portion.
  • the present invention relates to a camera module for a portable terminal having a ball guide structure, in which a carrier moving in a direction parallel to an optical axis generates a rotational force about a first ball guide portion as a central axis, thereby preventing sagging and tilting of the carrier, can do.
  • the camera module for a portable terminal of the present invention can increase the size of the magnet and increase the driving force for moving the carrier by extending the remaining space to the mounting space of the magnet by arranging the ball guide portion on either side of the magnet. .
  • the camera module for a portable tamer according to the present invention can utilize the internal space efficiently by applying the structure in which the position of the second ball guide portion is changed, the size of the ball member can be increased, It is possible to prevent the ball member from being picked up and released when it occurs.
  • Fig. 1 is a schematic view showing a structure of a conventional camera module.
  • FIG. 2 is a perspective view of a camera module for a portable terminal according to an embodiment of the present invention
  • FIG 3 is an exploded perspective view of a camera module for a portable terminal according to an embodiment of the present invention.
  • FIG. 4 is a sectional view of a camera module for a portable terminal according to an embodiment of the present invention.
  • the present invention relates to a camera module for a portable terminal having a ball guide structure for adjusting a focus of a camera, and more particularly, to a camera module for generating a rotational force with a first ball guide portion as a central axis in a carrier moving in a direction parallel to an optical axis, It is possible to prevent sagging and tilting of the motor and ensure stable vertical driving.
  • a camera module for a portable terminal includes a base 100, a carrier 200, a first ball guide 310, a second ball guide 320 And a cover (not shown) covering the upper portion of the base 100.
  • the base 100 is formed in a substantially hexahedral shape, and a receiving space 101 into which the carrier 200 is inserted is formed.
  • a through hole 102 is formed on one surface of the base 100 and the circuit board 110 is mounted on the outer surface of the base 100 so as to cover the through hole 102.
  • a coil 120, a sensor 130, and a first yoke 140 are mounted on the circuit board 110.
  • the coil 120 is mounted on the inner surface of the circuit board 110 facing the receiving space 101 and is disposed in the through hole 102.
  • a sensor 130 for sensing the displacement of the carrier 200 is mounted on the inner surface of the circuit board 110.
  • the first yoke 140 is mounted on the outer surface of the circuit board 110. That is, the coil 120 and the first yoke 140 are mounted at the same positions on both sides of the circuit board 110 with the circuit board 110 as the center.
  • a vertical groove 103 is formed on one side of the base 100 on which the through hole 102 is formed, on the inner side facing the accommodation space 101. These vertical grooves 103 are formed near the front right edge of the base 100 as shown in Figs. Vertical protrusions 104 are protruded from the inner surface of the base 100. Vertical protrusions 104 are formed near the rear left edge of base 100.
  • the carrier 200 is equipped with one or more lenses (not shown).
  • the carrier 200 is inserted into the accommodation space 101 and can move in a direction parallel to the optical axis of the lens.
  • a mounting portion 201 is formed on one side of the carrier 200.
  • a second yoke 210 and a magnet 220 are mounted on the mounting portion 201. That is, the second yoke 210 is mounted on the mounting portion 201 and the magnet 220 is mounted on the second yoke 210.
  • the magnet 220 is divided into two parts. The magnet 220 forms a magnetic field around the coil 120 facing the coil 120 mounted on the base 100 and generates attraction between the magnet 220 and the first yoke 140.
  • a first guide groove 202 is formed on one side of the carrier 200. As shown in FIG. 4, the first guide groove 202 is formed on the right side of the mounting portion 201 so as to face the vertical groove 103. Further, the carrier 200 is provided with a second guide groove 203 at a position facing the vertical projection 104.
  • the first ball guide 310 is disposed between the first guide groove 202 and the vertical groove 103.
  • the first ball guide 310 is formed of three ball members, and one ball member located between the two ball members is smaller in diameter than the other two ball members.
  • the second ball guide is disposed between the second guide groove (203) and the vertical projection (104).
  • the second ball guide 320 is also formed of three ball members and is the same as the first ball guide 310.
  • the carrier 200 is pulled toward the front where the first yoke 140 is located by the attraction force N generated between the magnet 220 and the first yoke 140.
  • a rotational force T is generated in the carrier 200 about the first ball guide 310 as a center axis by the first ball guide 310 at one side (right side in the drawing) of the magnet 220.
  • the second ball guide 320 inserted into the second guide groove 203 and in contact with the vertical protrusion 104 supports the carrier 200 against the rotational force T.
  • the carrier 200 is supported by the first ball guide portion 310 and the second ball guide portion 320 in the receiving space 101 by using the rotational force acting in this way.
  • a current flows through the coil 120 The carrier 200 moves in a direction parallel to the optical axis.
  • the sensor 130 senses a change in a magnetic field generated by the magnet 220 and provides feedback information on the driving of the carrier 200.
  • the second ball guide portion 320 includes a first ball guide portion 310 and driving sources (coil 120 and magnet 220) It is possible to minimize the deflection and tilting of the carrier 200 and to perform the stable up-and-down driving because the carrier 200 is not concentrated on either side of the carrier 200 but is spaced apart.
  • the magnet 220 can be increased in size by increasing the mounting space of the magnet 220, and the driving force for moving the carrier 200 can be increased.
  • the inner space can be efficiently used and the size of the ball member can be increased, it is possible to prevent the ball member from being struck and released when a large impact is generated from the outside such as a drop.
  • the camera module for a portable terminal according to the present invention is not limited to the above-described embodiments and can be variously modified within the scope of the technical idea of the present invention.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Lens Barrels (AREA)
  • Studio Devices (AREA)

Abstract

La présente invention concerne un module de caméra de terminal mobile et, plus spécifiquement, un module de caméra de terminal mobile ayant une structure de guidage à billes permettant de régler la mise au point d'une caméra. Le module de caméra de terminal mobile de la présente invention comprend : une base à l'intérieur de laquelle est aménagé un espace de réception; un support inséré dans l'espace de réception pour pouvoir se déplacer dans une direction parallèle à un axe optique d'un objectif; une bobine et un aimant produisant une alimentation d'entraînement permettant au support de se déplacer; une première culasse montée sur la base ou le support de façon à générer une attraction entre la première culasse et l'aimant; et une première pièce de guidage à billes et une deuxième pièce de guidage à billes, comprenant chacune une pluralité de billes individuelles servant à guider le mouvement du support entre la base et le support, l'attraction générée entre l'aimant et la première culasse produisant une force de rotation sur le support pour le faire tourner autour de la première pièce de guidage à billes, la deuxième pièce de guidage à billes soutenant le support par rapport à la force de rotation.
PCT/KR2018/004990 2017-06-30 2018-04-30 Module de caméra de terminal portable Ceased WO2019004583A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020170083076A KR20190002852A (ko) 2017-06-30 2017-06-30 휴대단말기용 카메라 모듈
KR10-2017-0083076 2017-06-30

Publications (1)

Publication Number Publication Date
WO2019004583A1 true WO2019004583A1 (fr) 2019-01-03

Family

ID=64742486

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2018/004990 Ceased WO2019004583A1 (fr) 2017-06-30 2018-04-30 Module de caméra de terminal portable

Country Status (2)

Country Link
KR (1) KR20190002852A (fr)
WO (1) WO2019004583A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110794547A (zh) * 2019-08-31 2020-02-14 东莞睿恩科技有限公司 滚珠式音圈马达的透镜驱动装置、相机装置及电子设备
WO2022017159A1 (fr) * 2020-07-21 2022-01-27 宁波舜宇光电信息有限公司 Appareil de commande de cardan pour module de caméra, module de caméra et dispositif terminal

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11570345B2 (en) 2020-09-25 2023-01-31 Samsung Electro-Mechanics Co., Ltd. Camera module
CN115473974B (zh) 2021-06-10 2024-08-09 宁波舜宇光电信息有限公司 感光芯片驱动装置及摄像模组

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150085426A (ko) * 2014-01-15 2015-07-23 자화전자(주) 카메라 렌즈 모듈
KR101555904B1 (ko) * 2015-02-17 2015-09-30 (주) 엠디펄스 카메라 모듈
KR20150124036A (ko) * 2014-04-25 2015-11-05 주식회사 하이소닉 휴대단말기용 카메라 모듈의 렌즈 이송장치
KR101640565B1 (ko) * 2015-08-12 2016-07-18 주식회사 엠씨넥스 손떨림 보정 기능을 갖는 카메라 모듈
KR20170056387A (ko) * 2015-11-13 2017-05-23 삼성전기주식회사 렌즈 구동 장치 및 이를 포함하는 카메라 모듈

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150085426A (ko) * 2014-01-15 2015-07-23 자화전자(주) 카메라 렌즈 모듈
KR20150124036A (ko) * 2014-04-25 2015-11-05 주식회사 하이소닉 휴대단말기용 카메라 모듈의 렌즈 이송장치
KR101555904B1 (ko) * 2015-02-17 2015-09-30 (주) 엠디펄스 카메라 모듈
KR101640565B1 (ko) * 2015-08-12 2016-07-18 주식회사 엠씨넥스 손떨림 보정 기능을 갖는 카메라 모듈
KR20170056387A (ko) * 2015-11-13 2017-05-23 삼성전기주식회사 렌즈 구동 장치 및 이를 포함하는 카메라 모듈

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110794547A (zh) * 2019-08-31 2020-02-14 东莞睿恩科技有限公司 滚珠式音圈马达的透镜驱动装置、相机装置及电子设备
CN110794547B (zh) * 2019-08-31 2022-06-24 东莞睿恩科技有限公司 滚珠式音圈马达的透镜驱动装置、相机装置及电子设备
WO2022017159A1 (fr) * 2020-07-21 2022-01-27 宁波舜宇光电信息有限公司 Appareil de commande de cardan pour module de caméra, module de caméra et dispositif terminal

Also Published As

Publication number Publication date
KR20190002852A (ko) 2019-01-09

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