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KR20140135909A - Camera module assembly - Google Patents

Camera module assembly Download PDF

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Publication number
KR20140135909A
KR20140135909A KR20130056062A KR20130056062A KR20140135909A KR 20140135909 A KR20140135909 A KR 20140135909A KR 20130056062 A KR20130056062 A KR 20130056062A KR 20130056062 A KR20130056062 A KR 20130056062A KR 20140135909 A KR20140135909 A KR 20140135909A
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KR
South Korea
Prior art keywords
barrel
holder
lens
lens barrel
substrate
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KR20130056062A
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Korean (ko)
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최승신
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주식회사 테크웍스플러스
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Priority to KR20130056062A priority Critical patent/KR20140135909A/en
Publication of KR20140135909A publication Critical patent/KR20140135909A/en
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B30/00Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/023Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/02Bodies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50Constructional details
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices

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

Abstract

본 발명은 렌즈배럴과 홀더의 조립구조를 개선한 카메라모듈 조립체를 개시한다. 본 발명에 따른 카메라모듈 조립체는, 렌즈를 구비하는 제1배럴과, 상기 제1배럴이 내부로 삽입되어 나사결합되는 것으로서 외주면에 원주방향을 따라 걸림턱이 형성된 제2배럴을 구비하는 렌즈배럴; 이미지센서가 실장된 기판; 상기 이미지센서를 둘러싸도록 상기 기판에 고정되는 것으로서 상면에 상기 렌즈배럴이 삽입되는 관통부를 구비하며, 상기 관통부의 에지부분이 상기 걸림턱을 눌러서 상기 렌즈배럴을 고정하는 홀더를 포함한다.
본 발명에 따르면, 홀더의 크기를 줄임으로써 열변형을 최소화할 수 있고, 다양한 크기의 홀더를 제작해야 하는 경우에도 금형 및 원재료 비용을 줄일 수 있다. 또한 홀더를 기판에 장착할 때 렌즈배럴도 동시에 정위치에 정렬 및 고정되므로 렌즈와 이미지센서의 정렬이 매우 간편해지는 이점이 있다.
The present invention discloses a camera module assembly that improves the assembling structure of a lens barrel and a holder. A camera module assembly according to the present invention includes: a lens barrel having a first barrel having a lens; and a second barrel having a first barrel inserted into and screwed into the first barrel and having an engaging protrusion formed along a circumferential direction on an outer circumferential surface thereof; A substrate on which an image sensor is mounted; And a holder which is fixed to the substrate so as to surround the image sensor and has a penetration portion through which the lens barrel is inserted on an upper surface thereof and an edge portion of the penetration portion presses the engaging jaw to fix the lens barrel.
According to the present invention, thermal deformation can be minimized by reducing the size of the holder, and the cost of the mold and the raw material can be reduced even when a holder having various sizes is manufactured. Also, when the holder is mounted on the substrate, the lens barrel is also aligned and fixed at the same position at the same time, so that the alignment of the lens and the image sensor becomes very simple.

Description

카메라모듈 조립체{Camera module assembly}Camera module assembly < RTI ID = 0.0 >

본 발명은 카메라모듈 조립체에 관한 것으로서, 구체적으로는 렌즈배럴과 홀더의 조립구조를 개선한 카메라모듈 조립체에 관한 것이다.The present invention relates to a camera module assembly, and more particularly, to a camera module assembly in which an assembly structure of a lens barrel and a holder is improved.

일반적으로 휴대기기용 카메라, 자동차용 카메라, 방범카메라 등에 사용되는 카메라모듈(10)은 도 1의 분해사시도와 도 2의 단면도에 개략적으로 나타낸 바와 같이, 회로패턴(12)이 인쇄된 기판(11), 기판(11)의 상면에 실장된 이미지센서(13), 이미지센서(13)를 둘러싸며 하단이 기판(11)에 고정되는 홀더(15), 홀더(15)의 상단 개구부에 결합되며 내부에 하나 이상의 렌즈(19)를 구비한 렌즈배럴(17) 등을 포함한다. 또한 기판(11)의 회로패턴(12)을 휴대기기 등의 메인기판과 전기적으로 연결하기 위한 FPCB(Flexible printed circuit board)(미도시) 또는 커넥터 등을 포함할 수도 있다.A camera module 10 used in a camera for a portable device, a camera for an automobile, a security camera, or the like is schematically shown in an exploded perspective view of Fig. 1 and a sectional view of Fig. 2, An image sensor 13 mounted on the upper surface of the substrate 11; a holder 15 surrounding the image sensor 13 and having a lower end fixed to the substrate 11; And a lens barrel 17 having one or more lenses 19 and the like. (FPCB) (not shown) or a connector for electrically connecting the circuit pattern 12 of the substrate 11 to a main substrate of a portable device or the like.

따라서 렌즈(19)를 통해 집광된 영상은 이미지센서(13)에서 전기적 신호로 변환되고, 이어서 회로패턴(12)과 FPCB(미도시) 등을 거쳐 메인기판으로 전송되어 장치의 화면에 표시되거나 메모리에 저장된다.Therefore, the image condensed through the lens 19 is converted into an electrical signal by the image sensor 13 and then transmitted to the main substrate through the circuit pattern 12 and the FPCB (not shown) / RTI >

한편 종래 카메라모듈(10)의 홀더(15)는 대략 원형 또는 사각형의 통 형상으로서 중앙에 배럴장착부(15a)가 상부로 돌출되어 있으며, 배럴장착부(15a)의 상단에는 렌즈배럴(17)이 삽입되는 개구부가 형성되어 있다. The holder 15 of the conventional camera module 10 has a substantially circular or quadrangular cylindrical shape with a barrel mounting portion 15a protruding upward at the center and a lens barrel 17 is inserted into an upper end of the barrel mounting portion 15a As shown in Fig.

또한 홀더(15)를 기판(11)의 정확한 위치에 장착하기 위하여 기판(11)에는 다수의 정렬홀이 형성되고, 홀더(15)의 하단에는 기판(11)의 각 정렬홀에 삽입되는 다수의 정렬돌기(16)가 형성된다. 정렬돌기(16)와 정렬홀은 렌즈(19)와 이미지센서(13)의 중심이 일치하도록 홀더(15)의 위치를 결정하는 역할을 한다.A plurality of alignment holes are formed in the substrate 11 to mount the holder 15 at the correct position of the substrate 11 and a plurality of alignment holes Alignment projections 16 are formed. The alignment protrusions 16 and the alignment holes serve to determine the position of the holder 15 so that the centers of the lens 19 and the image sensor 13 coincide with each other.

이와 달리 기판(11)의 다수의 정렬홀에 대응하는 홀더(15)의 각 위치에 나사홀을 형성하고, 나사를 이용하여 홀더(15)를 기판(11)에 고정시키는 경우도 있다. A screw hole may be formed at each position of the holder 15 corresponding to a plurality of alignment holes of the substrate 11 and the holder 15 may be fixed to the substrate 11 using a screw.

그런데 이러한 종래 카메라모듈(10)은 다음과 같은 몇 가지 문제점을 안고 있다.However, the conventional camera module 10 has the following problems.

첫째. 종래의 홀더(15)는 플라스틱 사출성형으로 제작되는데, 플라스틱 재질로 인해 고온환경에 장시간 노출되면 열변형이 발생하여 렌즈의 정렬 및 포커싱이 흐트러지는 문제가 있다.first. The conventional holder 15 is manufactured by plastic injection molding. However, due to the plastic material, if the lens is exposed to a high temperature environment for a long time, heat distortion occurs and the alignment and focusing of the lens are disturbed.

둘째, 다양한 크기의 홀더(15)를 제작해야 하는 경우에는 각 사이즈의 홀더(15)에 맞게 금형을 따로 제작해야 하므로 제작비용이 증가하는 문제가 있다.Secondly, when the holders 15 of various sizes are to be manufactured, the molds must be manufactured separately for the holders 15 of each size, which increases the manufacturing cost.

셋째, 렌즈배럴(17)을 홀더(15)의 배럴장착부(15a)에 나사결합한 후에도 도 2에 나타낸 바와 같이 홀더(15)의 측면에서 나사(18)를 추가로 체결하여 렌즈배럴(17)을 고정시키는 경우가 있는데, 이때 나사(18)로 인해 렌즈배럴(17)이 밀리거나 기울어지면서 렌즈(19)와 이미지센서(13)의 정렬이 흐트러지는 문제가 있다.3, after screwing the lens barrel 17 to the barrel mounting portion 15a of the holder 15, the screw 18 is further fastened on the side of the holder 15 as shown in Fig. 2, There is a problem that the lens barrel 17 is pushed or tilted by the screw 18 and the alignment between the lens 19 and the image sensor 13 is disturbed.

한편 종래에는 플라스틱 홀더(17)의 열변형 문제를 해결하기 위하여 도 3에 나타낸 바와 같이, 알루미늄 홀더(15)에 렌즈배럴(17)을 장착하는 경우도 있다.Meanwhile, in order to solve the thermal deformation problem of the plastic holder 17, the lens barrel 17 may be mounted on the aluminum holder 15 as shown in Fig.

그런데 알루미늄 홀더(15)는 통상 다이캐스팅 방법으로 제작하므로 크기가 작은 홀더(15)에 정렬돌기 또는 나사홀을 형성하는 것이 매우 어려운 문제가 있다. 또한 정렬돌기 또는 나사홀을 만들려면 다이캐스팅 이후에 별도의 후공정을 거쳐야 하므로 제작비용이 크게 증가하는 문제가 있다.However, since the aluminum holder 15 is usually manufactured by the die casting method, it is very difficult to form alignment protrusions or screw holes in the holder 15 having a small size. In addition, in order to form the alignment protrusion or the screw hole, a separate post-process must be performed after the die casting, so that there is a problem that the manufacturing cost is greatly increased.

따라서 종래에는 알루미늄 홀더(15)의 하단을 접착제만으로 기판(11)에 고정시키는 경우가 대부분이고, 이로 인해 렌즈(19)와 이미지센서(13)의 중심을 정확히 맞추기 어려운 문제가 있다.Therefore, in most cases, the lower end of the aluminum holder 15 is mostly fixed to the substrate 11 with the adhesive alone, which makes it difficult to precisely match the center of the lens 19 and the image sensor 13.

본 발명은 이러한 문제를 개선하기 위한 것으로서, 홀더의 열변형을 줄일 수 있고, 다양한 크기의 홀더를 제작하는 경우에도 금형 등의 제작비용을 최소화할 수 있는 카메라모듈을 제공하는데 그 목적이 있다. 또한 본 발명은 렌즈와 이미지센서의 정렬이 용이한 카메라모듈을 제공하는데 그 목적이 있다.It is an object of the present invention to provide a camera module capable of reducing thermal deformation of a holder and minimizing the manufacturing cost of a mold and the like even when a holder having various sizes is manufactured. It is another object of the present invention to provide a camera module in which alignment between a lens and an image sensor is easy.

본 발명은 전술한 목적을 달성하기 위하여, 렌즈를 구비하는 제1배럴과, 상기 제1배럴이 내부로 삽입되어 나사결합되는 것으로서 외주면에 원주방향을 따라 걸림턱이 형성된 제2배럴을 구비하는 렌즈배럴; 이미지센서가 실장된 기판; 상기 이미지센서를 둘러싸도록 상기 기판에 고정되는 것으로서, 상면에 상기 렌즈배럴이 삽입되는 관통부를 구비하며, 상기 관통부의 에지부분이 상기 걸림턱을 눌러서 상기 렌즈배럴을 고정하는 홀더를 포함하는 카메라모듈 조립체를 제공한다.According to an aspect of the present invention, there is provided a lens barrel comprising: a first barrel having a lens; a lens barrel having a second barrel, the first barrel being inserted into and screwed into the first barrel, Barrel; A substrate on which an image sensor is mounted; And a holder which is fixed to the substrate so as to surround the image sensor and has a penetration portion through which the lens barrel is inserted on an upper surface thereof and an edge portion of the penetration portion presses the engaging jaw to fix the lens barrel, Lt; / RTI >

본 발명의 실시예에 따른 카메라모듈 조립체에서 상기 렌즈배럴의 상기 제2배럴은 금속재질이고, 상기 홀더는 플라스틱 재질인 것을 특징으로 할 수 있다.In the camera module assembly according to the embodiment of the present invention, the second barrel of the lens barrel may be made of a metal material, and the holder may be made of a plastic material.

또한 본 발명의 실시예에 따른 카메라모듈 조립체에서 상기 렌즈배럴의 상단에서 상기 걸림턱의 상단에 이르는 구간의 최대직경은 상기 홀더에 형성된 상기 관통부의 직경보다 작거나 같은 것을 특징으로 할 수 있다.Further, in the camera module assembly according to the embodiment of the present invention, the maximum diameter of the section from the upper end of the lens barrel to the upper end of the engaging jaw may be smaller than or equal to the diameter of the through-hole formed in the holder.

본 발명에 따르면, 홀더의 크기를 줄임으로써 열변형을 최소화할 수 있고, 다양한 크기의 홀더를 제작해야 하는 경우에도 금형 및 원재료 비용을 줄일 수 있다. 또한 홀더를 기판에 장착할 때 렌즈배럴도 동시에 정위치에 정렬 및 고정되므로 렌즈와 이미지센서의 정렬이 매우 간편해지는 이점이 있다.According to the present invention, thermal deformation can be minimized by reducing the size of the holder, and the cost of the mold and the raw material can be reduced even when a holder having various sizes is manufactured. Also, when the holder is mounted on the substrate, the lens barrel is also aligned and fixed at the same position at the same time, so that the alignment of the lens and the image sensor becomes very simple.

도 1은 종래 카메라모듈을 예시한 분해사시도
도 2는 종래 카메라모듈을 예시한 단면도
도 3은 종래 알루미늄 홀더를 사용한 카메라모듈을 예시한 단면도
도 4는 본 발명의 실시예에 따른 카메라모듈의 단면도
도 5는 본 발명의 실시예에 따른 카메라모듈의 분해단면도
도 6은 본 발명의 실시예에 따른 홀더의 여러 유형을 예시한 도면
1 is an exploded perspective view illustrating a conventional camera module;
2 is a cross-sectional view illustrating a conventional camera module
3 is a cross-sectional view illustrating a camera module using a conventional aluminum holder
4 is a cross-sectional view of a camera module according to an embodiment of the present invention.
5 is an exploded cross-sectional view of a camera module according to an embodiment of the present invention
Figure 6 illustrates various types of holders according to embodiments of the present invention;

이하에서는 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명한다. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

본 발명의 실시예에 따른 카메라모듈(100)은 도 4의 단면도 및 도 5의 분해단면도에 나타낸 바와 같이, 회로패턴이 인쇄된 기판(110), 기판(110)의 상면에 실장된 이미지센서(120), 이미지센서(120)를 둘러싼 채 하단이 기판(110)에 고정되는 홀더(130), 홀더(130)에 의해 지지되는 렌즈배럴(140)을 포함한다. The camera module 100 according to the embodiment of the present invention includes a substrate 110 on which a circuit pattern is printed, an image sensor (not shown) mounted on the top surface of the substrate 110, And a lens barrel 140 supported by the holder 130. The lens barrel 140 includes an image sensor 120 and a holder 130. The holder 130 has a lower end fixed to the substrate 110 while surrounding the image sensor 120. [

특히 본 발명의 실시예에서는 렌즈배럴(140)을 홀더(130)에 나사결합 방식으로 고정시키는 것이 아니라 렌즈배럴(140)의 외주면에 걸림턱(144)을 형성하고, 상기 걸림턱(144)에 홀더(130)가 걸려서 렌즈배럴(140)을 기판(110)쪽으로 압박하는 방식으로 고정시키는 점에 특징이 있다.Particularly, in the embodiment of the present invention, the lens barrel 140 is not fixed to the holder 130 in a screwed manner, but a locking protrusion 144 is formed on the outer circumferential surface of the lens barrel 140, The holder 130 is caught and fixed in such a manner that the lens barrel 140 is pressed toward the substrate 110. [

구체적으로 살펴보면, 홀더(130)는 도 6에 나타낸 바와 같이 대략 원형, 사각형, 다각형 등의 납작한 통 형상이며, 바닥면은 개구되고 상면 중앙에는 렌즈배럴(140)이 삽입되는 관통부(134)를 구비한다. 6, the holder 130 has a flat cylindrical shape such as a substantially circular, square, or polygonal shape, and has a through hole 134 in which a bottom surface is open and a lens barrel 140 is inserted in the center of the top surface Respectively.

또한 홀더(130)의 하단에는 도 4 및 도 5에 나타낸 바와 같이 다수의 정렬돌기(132)가 돌출될 수 있고, 이 경우 상기 다수의 정렬돌기(132)를 기판(110)에 형성된 정렬홀에 삽입함으로써 홀더(130)를 정확한 위치에 장착할 수 있다. 4 and 5, a plurality of alignment protrusions 132 may protrude from the lower end of the holder 130. In this case, the plurality of alignment protrusions 132 may protrude from the alignment holes formed in the substrate 110 It is possible to mount the holder 130 at an accurate position.

도면에 나타내지는 않았지만, 정렬돌기(132)를 대신하여 홀더(130)의 외측에 세로방향의 나사홀을 갖는 다수의 돌출부를 형성하고, 다수의 나사홀과 기판에 형성된 정렬홀을 대응시켜서 나사를 체결하면 홀더(130)를 기판(110)의 정확한 위치에 장착시킬 수 있다.A plurality of projections having vertical screw holes are formed on the outer side of the holder 130 in place of the alignment protrusions 132, and a plurality of screw holes are aligned with the alignment holes formed in the substrate, It is possible to mount the holder 130 at the correct position of the substrate 110.

렌즈배럴(140)은 렌즈(150)를 직접 지지하는 제1배럴(141)과, 제1배럴(141)의 외부에 결합되는 제2배럴(142)을 포함하는 이중 배럴 구조를 갖는다.The lens barrel 140 has a double barrel structure including a first barrel 141 that directly supports the lens 150 and a second barrel 142 that is coupled to the outside of the first barrel 141.

제1배럴(141)은 종래의 렌즈배럴과 마찬가지로 내부에 하나 이상의 렌즈(150)를 구비하고, 외주면에는 나사산을 구비한다.The first barrel 141 has one or more lenses 150 therein, like the conventional lens barrel, and has a thread on its outer circumferential surface.

제2배럴(142)은 속이 빈 관 형상이며, 내주면에는 제1배럴(141)이 나사결합하는 나사산이 형성되고, 외주면에는 원주방향으로 상기 걸림턱(144)이 형성된다.The second barrel 142 is hollow and has an inner circumferential surface formed with a screw thread for screwing the first barrel 141 and a circumferential protrusion 144 formed on the outer circumferential surface thereof.

도시된 바와 같이 제2배럴(142)에서 걸림턱(144)의 상부에 해당하는 구간의 외경을 하부구간보다 더 작게 형성하면 그 경계면에 형성된 단차를 걸림턱(144)으로 사용할 수 있다. 이와 달리 제2배럴(142)의 외주면에 원주방향을 따라 띠 형태의 돌출부를 형성하여 걸림턱(144)으로 사용할 수도 있다.As shown in the drawing, if the outer diameter of the section corresponding to the upper portion of the latching jaw 144 in the second barrel 142 is made smaller than the lower section, a step formed on the boundary surface may be used as the latching jaw 144. Alternatively, a band-shaped protrusion may be formed along the circumferential direction on the outer circumferential surface of the second barrel 142 so as to be used as the engaging jaw 144.

이러한 걸림턱(144)은 홀더(130)를 결합하였을 때 관통부(134)를 둘러싸는 에지(136)가 걸쳐지는 부분이다. 따라서 걸림턱(144)의 최대직경은 홀더(130)의 관통부(132)의 직경보다는 커야 한다.The latching jaw 144 is a portion where the edge 136 surrounding the penetrating portion 134 is engaged when the holder 130 is coupled. Therefore, the maximum diameter of the latching jaw 144 should be larger than the diameter of the penetrating portion 132 of the holder 130.

한편 제2배럴(142)은 고온환경에서 열변형을 최소화할 수 있도록 알루미늄, 마그네슘 등의 금속재질인 것이 바람직하다. 다만 이에 한정되는 것은 아니므로 용도에 따라서는 플라스틱 사출성형으로 제작될 수도 있다. On the other hand, the second barrel 142 is preferably made of a metal such as aluminum or magnesium so as to minimize thermal deformation in a high temperature environment. However, it is not limited to this, and it may be manufactured by plastic injection molding depending on the use.

홀더(130)와 제1배럴(141)도 플라스틱 사출성형으로 제작하는 것이 바람직하지만 이에 한정되는 것은 아니다. 만일 홀더(130)와 제1배럴(141) 및 제2배럴(142)을 모두 플라스틱 재질로 제작하더라도 부품간 유격으로 인해 종래보다 열변형 정도를 줄일 수 있는 이점은 있다.The holder 130 and the first barrel 141 are preferably formed by plastic injection molding, but are not limited thereto. Even if the holder 130, the first barrel 141, and the second barrel 142 are made of plastic, there is an advantage that the degree of thermal deformation can be reduced more than the conventional one due to the gap between the parts.

또한 제2배럴(142)은 원형의 관 형상인 것이 바람직하지만, 다각형 관 형상일 수도 있다. 어떤 경우이든지 제2배럴(142)의 외곽 형상은 홀더(130)의 관통부에 대응하는 것이어야 함은 물론이다.Further, the second barrel 142 preferably has a circular tubular shape, but may also be a polygonal tubular shape. In any case, the outer shape of the second barrel 142 should correspond to the penetration of the holder 130.

또한 제2배럴(142)은 홀더(130)에 의해 고정될 경우 그 하단이 기판(110)의 상면에 밀착될 수 있는 길이를 가져야 한다.When the second barrel 142 is fixed by the holder 130, the lower end of the second barrel 142 should be long enough to be brought into close contact with the upper surface of the substrate 110.

한편 렌즈배럴(140)의 걸림턱(144)에 홀더(130)의 관통부 에지(136)가 걸쳐지기 위해서는, 도 5에서 알 수 있는 바와 같이, 제2배럴(142)과 제1배럴(141)이 결합된 렌즈배럴(140)을 홀더 관통부(134)의 하부에서 상부로 통과시켜야 한다.5, the second barrel 142 and the first barrel 141 (see FIG. 5) are provided in the holder 130, The lens barrel 140 to which the lens barrel 140 is coupled must pass from the lower portion of the holder penetration portion 134 to the upper portion thereof.

따라서 렌즈배럴(140)의 상단에서 걸림턱(144)의 상단에 이르는 구간에서 렌즈배럴(140)의 최대 직경은 관통부(132)의 직경보다 작거나 같아야 한다. The maximum diameter of the lens barrel 140 in the section from the upper end of the lens barrel 140 to the upper end of the engaging protrusion 144 should be smaller than or equal to the diameter of the penetrating portion 132.

또한 홀더(130)가 렌즈배럴(140)을 흔들리지 않도록 고정시키기 위해서는 관통부 에지(136)가 제2배럴(142)의 외주면과 밀착하는 것이 바람직하며, 따라서 걸림턱(144)에 인접한 부분의 제2배럴(142)의 직경은 관통부(132)의 직경과 거의 비슷해야 할 것이다.It is preferable that the penetrating edge 136 is in close contact with the outer circumferential surface of the second barrel 142 so that the holder 130 is fixed so as not to shake the lens barrel 140. Therefore, The diameter of the two barrels 142 should be approximately the same as the diameter of the penetrating portion 132. [

본 발명의 실시예에 따르면, 홀더(130)의 상부로 렌즈장착부(도 1의 15a 참조)를 돌출시킬 필요가 없으므로 홀더(130)의 크기를 최소화할 수 있다. 특히 카메라모듈의 용도나 설계상의 요구에 대응하기 위해서는 다양한 크기의 홀더(130)를 제작할 필요가 있는데, 이러한 경우에도 본 발명에 따르면 홀더(130)의 크기가 최소화되므로 금형 및 원재료 비용을 크게 줄일 수 있는 효과가 있다.According to the embodiment of the present invention, the size of the holder 130 can be minimized since there is no need to protrude the lens mounting portion (see 15a in FIG. 1) to the upper portion of the holder 130. In particular, it is necessary to manufacture a holder 130 having various sizes in order to cope with the use of the camera module or the design requirement. In this case, according to the present invention, the size of the holder 130 is minimized, There is an effect.

또한 홀더(130)의 크기가 최소화되므로 고온환경에서 열변형 정도를 줄일 수 있고, 따라서 열변형으로 인한 이미지센서와 렌즈의 정렬오차를 줄일 수 있다. 특히, 전술한 바와 같이 제2배럴(142)을 알루미늄 등의 금속재질로 제작하면 열변형 정도를 크게 줄일 수 있다.In addition, since the size of the holder 130 is minimized, the extent of thermal deformation in a high temperature environment can be reduced, thereby reducing the misalignment between the image sensor and the lens due to thermal deformation. Particularly, when the second barrel 142 is made of a metal such as aluminum as described above, the degree of thermal deformation can be greatly reduced.

이하에서는 도 4와 도 5를 참조하여, 본 발명의 실시예에 따른 카메라모듈(100)의 조립방법을 설명한다.Hereinafter, a method of assembling the camera module 100 according to an embodiment of the present invention will be described with reference to FIGS.

먼저 광학계를 구성하는 다수의 렌즈(150), 적외선필터 등이 장착된 제1배럴(141)을 제2배럴(142)의 상단에서부터 삽입시키고 서로를 나사 결합시켜서 렌즈배럴(140)을 준비한다. 또한 상면에 이미지센서(120)가 실장된 기판(110)을 준비한다.The lens barrel 140 is prepared by inserting a first barrel 141 equipped with a plurality of lenses 150, an infrared filter and the like constituting the optical system from the upper end of the second barrel 142 and screwing them together. The substrate 110 on which the image sensor 120 is mounted is prepared on the upper surface.

이어서 렌즈배럴(140)의 상단을 홀더(130)의 하부로부터 관통부(134)를 통과시켜서 렌즈배럴(140)의 걸림턱(144)에 관통부(134)를 둘러싸는 에지(136)가 걸릴 때까지 진입시킨다.The upper end of the lens barrel 140 is passed from the lower portion of the holder 130 through the penetration portion 134 so that the edge 136 surrounding the penetration portion 134 is engaged with the engagement protrusion 144 of the lens barrel 140 Enter until.

이 상태에서 홀더(130)의 하단에 형성된 정렬돌기(132)를 기판(110)에 형성된 정렬홀에 삽입하거나, 홀더(130)에 외측에 구비된 나사홀과 기판(110)의 정렬홀을 나사결합하여 홀더(130)의 기판(110)의 정위치에 장착한다. The alignment protrusion 132 formed at the lower end of the holder 130 is inserted into the alignment hole formed in the substrate 110 or the alignment hole of the substrate 110 and the screw hole provided at the outer side of the holder 130 are screwed And is mounted at a predetermined position of the substrate 110 of the holder 130.

이 과정에서 렌즈배럴(140)은 그 하단부가 기판(110)의 상면에 밀착되면서 정확한 위치에 장착된다. 즉, 본 발명의 조립방식은, 홀더(130)를 기판(110)에 장착한 후에 렌즈배럴(140)을 홀더(130)에 결합하는 방식이 아니고, 홀더(130)를 기판(110)에 고정할 때 동시에 렌즈배럴(140)도 홀더(130)에 의해 정위치게 고정되므로 조립공수가 줄어드는 이점이 있다.In this process, the lens barrel 140 is mounted at the correct position while its lower end is in close contact with the upper surface of the substrate 110. That is, the assembly method of the present invention is not a method in which the lens barrel 140 is coupled to the holder 130 after the holder 130 is mounted on the substrate 110, and the holder 130 is fixed to the substrate 110 The lens barrel 140 is fixed at the same position by the holder 130, thereby reducing the number of assembly operations.

또한 홀더(130)가 정위치에 장착됨과 동시에 렌즈배럴(140)도 정확한 위치에서 홀더(130)에 의해 지지되므로 이후에 렌즈배럴(140)을 고정하기 위해 나사를 추가로 결합할 필요가 없는 장점이 있다.Also, since the lens barrel 140 is also supported by the holder 130 at the correct position at the same time that the holder 130 is mounted in the correct position, there is no need to further join screws to fix the lens barrel 140 thereafter .

이와 같이 조립과정을 마친 이후에는 필요한 위치에 접착제를 도포하여 더욱 견고하게 고정시킬 수 있으며, 이후에는, 제1배럴(141)을 회전시키면서 렌즈와 이미지센서의 거리를 조절하는 포커싱공정, 검사공정 등이 추가로 진행될 수 있다.After the assembling process is completed, the adhesive can be applied to the required position to be more firmly fixed. Thereafter, the focusing process for adjusting the distance between the lens and the image sensor while rotating the first barrel 141, Can be added.

이상에서는 본 발명의 바람직한 실시예를 설명하였으나, 본 발명은 구체적인 적용에 있어서 다양한 형태로 변형 또는 수정될 수 있다.While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments.

예를 들어 앞에서는 제2배럴(142)의 하단이 기판(110)의 상면에 밀착되는 것으로만 설명하였으나, 제2배럴(142)의 하단에 다수의 결합돌기를 형성하고 기판(110)에 이에 대응하는 다수의 정렬홀을 형성하여 제2배럴(142)의 위치를 기판(110)에 고정시킬 수도 있다.A plurality of coupling protrusions may be formed at the lower end of the second barrel 142 and a plurality of coupling protrusions may be formed at the lower end of the second barrel 142 and the lower end of the second barrel 142 may be attached to the upper surface of the substrate 110. [ A corresponding plurality of alignment holes may be formed to fix the position of the second barrel 142 to the substrate 110. [

또한 기판(110)의 상면에 제2배럴(142)의 하단부에 대응한 홈을 형성하여 제2배럴(142)의 하단이 삽입되도록 할 수도 있다.A groove corresponding to the lower end of the second barrel 142 may be formed on the upper surface of the substrate 110 so that the lower end of the second barrel 142 may be inserted.

또한 본 발명에서는 홀더(130)의 상면에 배럴장착부가 돌출되지 않는 것으로 설명하였으나, 관통부 에지(136)의 상부 또는 하부로 약간의 수직면을 형성하여 이를 통해 제2배럴(142)을 보다 견고하게 지지할 수도 있다. 이 경우에도 홀더(130)와 제2배럴(142)이 서로 나사결합하지 않음은 물론이다.Although it has been described in the present invention that the barrel mounting portion does not protrude from the upper surface of the holder 130, a slight vertical surface may be formed at the upper portion or the lower portion of the penetrating portion edge 136 to secure the second barrel 142 more firmly It can also support. In this case, it is needless to say that the holder 130 and the second barrel 142 are not screwed together.

이와 같이 본 발명은 다양한 형태로 변형 또는 수정될 수 있으며, 변형 또는 수정된 실시예도 후술하는 특허청구범위에 나타낸 본 발명의 기술적 사상을 포함한다면 본 발명의 권리범위에 속함은 당연하다.As described above, the present invention can be modified or modified in various forms, and it is obvious that the modified or modified embodiments are also included in the scope of the present invention if they include the technical idea of the present invention as set forth in the appended claims.

100: 카메라모듈 110: 기판
120: 이미지센서 130: 홀더
132: 정렬돌기 134: 관통부
136: 에지 140: 렌즈배럴
141: 제1배럴 142: 제2배럴
144: 걸림턱 150: 렌즈
100: camera module 110: substrate
120: image sensor 130: holder
132: alignment protrusion 134:
136: edge 140: lens barrel
141: first barrel 142: second barrel
144: latching jaw 150: lens

Claims (3)

렌즈를 구비하는 제1배럴과, 상기 제1배럴이 삽입되어 나사결합된 것으로서 외주면에 원주방향을 따라 걸림턱이 형성된 제2배럴을 구비하는 렌즈배럴;
이미지센서가 실장된 기판;
상기 이미지센서를 둘러싸도록 상기 기판에 고정되는 것으로서, 상면에 상기 렌즈배럴이 삽입되는 관통부를 구비하며, 상기 관통부의 에지부분이 상기 걸림턱을 눌러서 상기 렌즈배럴을 고정하는 홀더
를 포함하는 카메라모듈 조립체
A lens barrel having a first barrel having a lens and a second barrel having the first barrel inserted therein and threadedly coupled to the outer circumferential surface of the second barrel along the circumferential direction;
A substrate on which an image sensor is mounted;
Wherein the lens barrel is fixed to the substrate so as to surround the image sensor, and an edge portion of the penetrating portion is provided with a holder for fixing the lens barrel by pressing the engaging jaw,
A camera module assembly
제1항에 있어서,
상기 렌즈배럴의 상기 제2배럴은 금속 재질이고, 상기 홀더는 플라스틱 재질인 것을 특징으로 하는 카메라모듈 조립체
The method according to claim 1,
Wherein the second barrel of the lens barrel is made of a metal material and the holder is made of a plastic material.
제1항에 있어서,
상기 렌즈배럴의 상단에서 상기 걸림턱의 상단에 이르는 구간의 최대직경은 상기 홀더에 형성된 상기 관통부의 직경보다 작거나 같은 것을 특징으로 하는 카메라모듈 조립체
The method according to claim 1,
Wherein a maximum diameter of a section from an upper end of the lens barrel to an upper end of the engaging jaw is smaller than or equal to a diameter of the through portion formed in the holder.
KR20130056062A 2013-05-16 2013-05-16 Camera module assembly Ceased KR20140135909A (en)

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