JP2008005011A - Manufacturing method of camera module - Google Patents

Manufacturing method of camera module Download PDF

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Publication number
JP2008005011A
JP2008005011A JP2006169929A JP2006169929A JP2008005011A JP 2008005011 A JP2008005011 A JP 2008005011A JP 2006169929 A JP2006169929 A JP 2006169929A JP 2006169929 A JP2006169929 A JP 2006169929A JP 2008005011 A JP2008005011 A JP 2008005011A
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Prior art keywords
adjustment
lens holder
adhesive
focus adjustment
lens
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Japanese (ja)
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Takahiro Shimizu
貴博 清水
Tsuyoshi Fujiwara
剛志 藤原
Takahiro Kamakura
孝博 鎌倉
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Shinko Electric Industries Co Ltd
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Shinko Electric Industries Co Ltd
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Priority to JP2006169929A priority Critical patent/JP2008005011A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a camera module by which a lens holder provided with a light receiving lens is screwed to a cylinder part of a main body holder and the lens holder and the cylinder part can surely be fixed by application of an adhesive. <P>SOLUTION: Hooks 28 of an adjustment piece 26 for focus adjustment are engaged with a plurality of notch grooves 24 formed in end edge of an end face of the lens holder 11 provided with the light receiving lens, while the lens holder 11 is screwed to the cylinder part 10a of the holder main body by rotating the adjustment piece 26, the light receiving lens is positioned at the focus position, and thereafter the end edge of the lens holder 11 and the end edge of the cylinder part 10a are fixed by applying the adhesive to a plurality of parts along the end edge of the lens holder 11. In such a case, the positions of the notch grooves at the end of the focus adjustment are detected and then a moving mechanism for moving an applying means of the adhesive is controlled so that the adhesive can be applied to positions avoiding the notch grooves 24. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明はカメラモジュールの製造方法に関し、更に詳細には撮像装置等に使用されるカメラモジュールの製造方法に関する。   The present invention relates to a method for manufacturing a camera module, and more particularly to a method for manufacturing a camera module used in an imaging apparatus or the like.

ＣＣＤやＣＭＯＳといった撮像素子を搭載したカメラモジュールには種々の形態の製品が提供されている（例えば、特許文献１、特許文献２参照）。
かかるカメラモジュールには、図４に示す様に、受光レンズ１２を支持したレンズホルダ１１を、本体ホルダ１０の筒体部１０ａにねじ込むようにして組み立てるカメラモジュールがある。このカメラモジュールでは、ケーシング部１０ｂの内面に、筒体部１０ａの開口孔１０ｃを塞ぐように赤外線カット用のガラスフィルター１３が封着され、ケーシング部１０ｂの開口端面に撮像素子２１を搭載した回路基板２０を接合して組み立てられる。
図４に示すカメラモジュールでは、レンズホルダ１１を本体ホルダ１０の筒体部１０ａにねじ込む際に、撮像素子２１を使用して受光レンズ１２のフォーカス調整も併せて行われ、フォーカス調整されたレンズホルダ１１を固定すべく、図５に示す様に、レンズホルダ１１の端縁に沿って少なくとも二箇所に接着剤２２，２２を塗布し、レンズホルダ１１の端縁と筒体部１０ａの端縁とを固着する。
特開２００３−６０１７７号公報 特開２００４−１４７０３２号公報 Various types of products are provided for camera modules equipped with an image sensor such as a CCD or a CMOS (see, for example, Patent Document 1 and Patent Document 2).
As such a camera module, as shown in FIG. 4, there is a camera module that is assembled by screwing a lens holder 11 supporting a light receiving lens 12 into a cylindrical body portion 10 a of a main body holder 10. In this camera module, a circuit in which an infrared cut glass filter 13 is sealed on the inner surface of the casing portion 10b so as to close the opening hole 10c of the cylindrical portion 10a, and the imaging element 21 is mounted on the opening end surface of the casing portion 10b. The substrate 20 is assembled and joined.
In the camera module shown in FIG. 4, when the lens holder 11 is screwed into the cylindrical body part 10 a of the main body holder 10, the focus adjustment of the light receiving lens 12 is also performed using the image pickup device 21, and the lens holder whose focus is adjusted As shown in FIG. 5, adhesives 22 and 22 are applied to at least two locations along the edge of the lens holder 11 to fix the lens 11, and the edge of the lens holder 11 and the edge of the cylindrical portion 10a To fix.
JP 2003-60177 A JP 2004-147032 A

図４及び図５に示すカメラモジュールの製造方法によれば、受光レンズ１２のフォーカス調整を行いつつ、レンズホルダ１１を本体ホルダ１０の筒体部１０ａにねじ込むことができる。
この様に、レンズホルダ１１を本体ホルダ１０の筒体部１０ａにねじ込む際には、図６に示す様に、レンズホルダ１１の端面の周縁近傍に形成された切欠溝２４，２４・・の各々に、円板状の調整こま２６のフック２８を係合し、モータ等の駆動手段（図示せず）を起動して調整こま２６を回転させる。
次いで、受光レンズ１２のフォーカス調整が行われたとき、調整こま２６の駆動手段を停止してレンズホルダ１１の筒体部１０ａへのねじ込みを停止し、図７に示す接着剤塗布手段によって接着剤を塗布する。 According to the method for manufacturing the camera module shown in FIGS. 4 and 5, the lens holder 11 can be screwed into the cylindrical portion 10 a of the main body holder 10 while adjusting the focus of the light receiving lens 12.
Thus, when the lens holder 11 is screwed into the cylindrical portion 10a of the main body holder 10, as shown in FIG. 6, each of the notch grooves 24, 24,... Formed in the vicinity of the peripheral edge of the end surface of the lens holder 11 is provided. Then, the hook 28 of the disc-shaped adjustment top 26 is engaged, and driving means (not shown) such as a motor is activated to rotate the adjustment top 26.
Next, when the focus adjustment of the light receiving lens 12 is performed, the driving means of the adjustment top 26 is stopped to stop the screwing of the lens holder 11 into the cylindrical portion 10a, and the adhesive is applied by the adhesive application means shown in FIG. Apply.

図７に示す接着剤塗布手段としては、従来、固定軸１００に沿って移動可能に設けられた移動軸１０２を具備する一軸移動機構を用い、移動軸１０２に接着剤が充填されたシリンジ１０４が設けられた装置が用いられている。この接着剤塗布手段には、レンズホルダ１１が筒状部１０ａにねじ込まれた本体ホルダ１０が、一対のローラ１０６，１０６間に掛け渡されたベルト１０８上に載置されて、シリンジ１０４の下方位置まで移送されてくる。
しかし、図６に示す様に、レンズホルダ１１の端面には、その周縁近傍に切欠溝２４，２４・・が形成されており、受光レンズ１２のフォーカス調整が完了する位置はレンズホルダ１１によって種々の位置となる。
また、図７に示す接着剤塗布手段では、接着剤が充填されたシリンジ１０４の移動手段として一軸移動機構が用いられており、シリンジ１０４は直線状にしか移動できない。 As the adhesive application means shown in FIG. 7, conventionally, a uniaxial moving mechanism including a moving shaft 102 provided so as to be movable along the fixed shaft 100 is used, and a syringe 104 in which the moving shaft 102 is filled with an adhesive is used. The provided device is used. In this adhesive application means, a main body holder 10 in which a lens holder 11 is screwed into a cylindrical portion 10 a is placed on a belt 108 spanned between a pair of rollers 106, 106, and below a syringe 104. It is transferred to the position.
However, as shown in FIG. 6, notch grooves 24, 24... Are formed in the vicinity of the periphery of the end surface of the lens holder 11, and the position at which the focus adjustment of the light receiving lens 12 is completed varies depending on the lens holder 11. It becomes the position.
In the adhesive application means shown in FIG. 7, a uniaxial movement mechanism is used as a movement means for the syringe 104 filled with the adhesive, and the syringe 104 can move only in a straight line.

このため、レンズホルダ１１の端縁に沿って二箇所に接着剤２２，２２を塗布した場合、図８（ａ）に示す様に、レンズホルダ１１の切欠溝２４，２４・・が形成されていない部分に接着剤２２，２２を塗布できる場合がある一方、図８（ｂ）に示す如く、接着剤２２，２２の一方が切欠溝２４に塗布されてしまうことがある。接着剤２２，２２の一方が切欠溝２４に塗布された場合には、レンズホルダ１１と筒状部１０ａとの固定が不充分であるとして、不良品として扱われる。かかる不良品をチェックするため、得られたカメラモジュールの全数について人手で検査が施されている。
そこで、本発明の課題は、受光レンズが設けられたレンズホルダを本体ホルダの筒状部にねじ込み、レンズホルダと筒状部とを接着剤塗布によって確実に固定できるカメラモジュールの製造方法を提供することにある。 Therefore, when the adhesives 22 and 22 are applied at two locations along the edge of the lens holder 11, the notch grooves 24, 24... Of the lens holder 11 are formed as shown in FIG. In some cases, the adhesives 22 and 22 can be applied to the unexposed portions, while one of the adhesives 22 and 22 may be applied to the cutout groove 24 as shown in FIG. When one of the adhesives 22 and 22 is applied to the notch groove 24, it is treated as a defective product because the lens holder 11 and the cylindrical portion 10a are not sufficiently fixed. In order to check such defective products, all the obtained camera modules are manually inspected.
Accordingly, an object of the present invention is to provide a method for manufacturing a camera module in which a lens holder provided with a light receiving lens is screwed into a cylindrical portion of a main body holder, and the lens holder and the cylindrical portion can be securely fixed by adhesive application. There is.

本発明者等は、前記課題を解決するには、レンズホルダにねじ込んで、受光レンズのフォーカス調整が完了したとき、レンズホルダに形成されている切欠溝の位置を知ることができれば、切欠溝の位置を避けて接着剤を塗布することが有効ではないかと考えて検討した結果、本発明に到達した。
すなわち、本発明は、受光レンズが設けられたレンズホルダの端面の端縁に形成された複数個の切欠溝に、フォーカス調整用の調整こまのフックを係合し、前記調整こまを回転させて前記レンズホルダをホルダ本体の筒状部にねじ込みつつ、前記受光レンズのフォーカス位置に位置合わせした後、前記レンズホルダの端縁に沿う複数個所に接着剤を塗布して、前記レンズホルダの端縁と筒状部の端縁とを固定する際に、前記フォーカス調整開始位置とフォーカス調整開始から調整が終了するまでの調整こまの回転数とに基づいて、フォーカス調整が終了したときの前記切欠溝の位置を検出し、次いで、前記接着剤の塗布手段を移動する移動機構を、前記切欠溝を避けた位置に接着剤を塗布できるように、前記フォーカス調整が終了したときの切欠溝の位置に基づいて制御することを特徴とするカメラモジュールの製造方法にある。
かかる本発明において、フォーカス調整開始位置は、調整こまに形成した目印位置をセンサで検出するまでの調整こまの回転角度から容易に求めることができる。
また、フォーカス調整開始から調整終了するまでの調整こまの回転数は、調整こまを回転する回転手段として用いたステッピングモータによって検出できる。
更に、接着剤の塗布手段の移動機構として、固定軸に沿って移動可能に設けられた第１移動軸と、前記第１移動軸に沿って移動可能に設けられた第２移動軸とから成る二軸移動機構を用い、前記接着剤の塗布手段を前記第２移動軸に設けることによって、塗布手段を二次元で移動でき、レンズホルダの端面に形成された切欠溝を避けて接着剤を塗布できる。 In order to solve the above problems, the present inventors can screw in the lens holder and know the position of the notch groove formed in the lens holder when the focus adjustment of the light receiving lens is completed. As a result of considering that it is effective to apply the adhesive while avoiding the position, the present invention has been achieved.
That is, according to the present invention, an adjustment top hook for focus adjustment is engaged with a plurality of notch grooves formed on an edge of an end surface of a lens holder provided with a light receiving lens, and the adjustment top is rotated. After the lens holder is screwed into the cylindrical portion of the holder body and aligned with the focus position of the light receiving lens, an adhesive is applied to a plurality of locations along the edge of the lens holder, and the edge of the lens holder is When the focus adjustment is completed, the notch groove when the focus adjustment is completed is fixed based on the focus adjustment start position and the rotation speed of the adjustment top from the focus adjustment start to the adjustment end. When the focus adjustment is completed so that the moving mechanism for moving the adhesive application means can apply the adhesive at a position avoiding the notch groove. In the manufacturing method of a camera module and controls based on the position of Ketsumizo.
In the present invention, the focus adjustment start position can be easily obtained from the rotation angle of the adjustment top until the mark position formed on the adjustment top is detected by the sensor.
Further, the rotation speed of the adjustment top from the start of the focus adjustment to the end of the adjustment can be detected by a stepping motor used as a rotating means for rotating the adjustment top.
Furthermore, the moving mechanism of the adhesive application means includes a first moving shaft provided to be movable along a fixed shaft and a second moving shaft provided to be movable along the first moving shaft. By using a biaxial movement mechanism and providing the adhesive application means on the second movement axis, the application means can be moved in two dimensions, and the adhesive is applied avoiding the notch grooves formed on the end surface of the lens holder. it can.

本発明によれば、フォーカス調整開始位置とフォーカス調整が終了するまでの調整こまの回転数とに基づいて、フォーカス調整終了したときのレンズホルダの端面に形成された複数個の切欠溝の位置を検出し、レンズホルダの端縁と筒状部の端縁とに接着剤を確実に塗布できるように、検出した切欠溝の位置に基づいて移動機構を制御して、レンズホルダに形成された切欠溝を避けて接着剤を塗布する。
このため、接着剤をレンズホルダの切欠溝に塗布する事態を回避でき、レンズホルダの端縁と筒状部の端縁とを接着剤で確実に固定できる。その結果、接着剤をレンズホルダの切欠溝に塗布した不良品の発生を抑制でき、得られたカメラモジュールの検査ついても緩和を図ることができる。 According to the present invention, the positions of the plurality of notch grooves formed on the end surface of the lens holder when the focus adjustment is completed based on the focus adjustment start position and the rotation speed of the adjustment top until the focus adjustment is completed. The notch formed in the lens holder is controlled by controlling the moving mechanism based on the detected position of the notch groove so that the adhesive can be reliably applied to the edge of the lens holder and the edge of the cylindrical portion. Apply adhesive away from the grooves.
For this reason, the situation which apply | coats an adhesive agent to the notch groove | channel of a lens holder can be avoided, and the edge of a lens holder and the edge of a cylindrical part can be fixed reliably with an adhesive. As a result, it is possible to suppress the occurrence of defective products in which the adhesive is applied to the notch grooves of the lens holder, and to mitigate the inspection of the obtained camera module.

本発明に係るカメラモジュールの製造方法で用いるレンズホルダの装着装置を図１に示す。図１に示すレンズホルダの装着装置には、受光レンズ１２（図４）が内装されたレンズホルダ１１の端面の周縁近傍に形成された切欠溝２４，２４・・の各々に係合するフック２８が設けられた円板状の調整こま２６と、調整こま２８の回転軸２５を回転するステッピングモータと、調整こま２８の周縁の所定位置に形成された目印としての切欠部３０と、切欠部３０を検知するセンサ３２とを具備する。
かかるレンズホルダの装着装置では、ステッピングモータに対する駆動開始信号及び駆動停止信号は制御部から発信され、ステッピングモータからの回転数の信号及びセンサ３２からの検知信号は制御部によって受信される。
この制御部では、フォーカス調整開始位置と、フォーカス調整が終了したときのレンズホルダ１１の切欠溝２４，２４・・の位置を検出する。 A lens holder mounting apparatus used in the method for manufacturing a camera module according to the present invention is shown in FIG. The lens holder mounting device shown in FIG. 1 has hooks 28 that engage with each of the cutout grooves 24, 24,... Formed in the vicinity of the peripheral edge of the end surface of the lens holder 11 in which the light receiving lens 12 (FIG. 4) is housed. A disc-shaped adjustment top 26 provided with a stepping motor for rotating the rotary shaft 25 of the adjustment top 28, a notch 30 as a mark formed at a predetermined position on the periphery of the adjustment top 28, and a notch 30 And a sensor 32 for detecting.
In such a lens holder mounting device, a drive start signal and a drive stop signal for the stepping motor are transmitted from the control unit, and a rotation number signal from the stepping motor and a detection signal from the sensor 32 are received by the control unit.
This control unit detects the focus adjustment start position and the positions of the cutout grooves 24, 24,... Of the lens holder 11 when the focus adjustment is completed.

ここで、調整こま２８のフック２８，２８・・の各々とレンズホルダ１１の端面の周縁近傍に形成された切欠溝２４を係合しステッピングモータを駆動開始したとき、レンズホルダ１１を本体ホルダ１０の筒体部１０ａへのねじ込みが開始され、本体ホルダ１０のケーシング部１０ｂの開口端面に接合された回路基板２０に搭載された撮像素子２１（図４）によるフォーカス調整も開始される。
従って、フォーカス調整開始位置は、制御部からステッピングモータに駆動信号を発信してから、切欠部３０の検知信号がセンサ３２から受信されるまでの調整こま２６の回転角度から求めることができる。
また、フォーカス調整の終了の際は、撮像素子２１を含むフォーカス調整手段（図示せず）の終了信号を受信した制御部からステッピングモータに駆動停止信号が発信される。
かかるフォーカス調整が終了したとき、制御部では、レンズホルダ１１の切欠溝２４，２４・・の位置は、フォーカス調整開始位置と、フォーカス調整開始から調整が終了するまでの調整こまの回転数（ステッピングモータからの信号によって算出）とに基づいて検出できる。 Here, when the stepping motor is started by engaging each of the hooks 28, 28,... Of the adjustment top 28 and the notch groove 24 formed in the vicinity of the peripheral edge of the lens holder 11, the lens holder 11 is moved to the main body holder 10. Is started to be screwed into the cylindrical body portion 10a, and focus adjustment by the imaging element 21 (FIG. 4) mounted on the circuit board 20 joined to the opening end surface of the casing portion 10b of the main body holder 10 is also started.
Therefore, the focus adjustment start position can be obtained from the rotation angle of the adjustment top 26 from when the drive signal is transmitted from the control unit to the stepping motor until the detection signal of the notch 30 is received from the sensor 32.
Further, when the focus adjustment is finished, a drive stop signal is transmitted to the stepping motor from the control unit that has received the finish signal of the focus adjustment means (not shown) including the image sensor 21.
When the focus adjustment is completed, the control unit determines the positions of the cutout grooves 24, 24,... Of the lens holder 11 as the focus adjustment start position and the rotation speed of the adjustment top (stepping from the start of the focus adjustment to the end of the adjustment). Based on the signal from the motor).

この様に、図１に示すレンズホルダの装着装置では、ステッピングモータ等を制御する制御部が設けられているため、制御部に保有しているレンズホルダ１１の切欠溝２４，２４・・の位置データを利用し、図２（ａ）に示す接着剤の塗布手段を移動する移動機構を制御し、切欠溝２４，２４・・を避けた位置に接着剤を塗布する。
図２（ａ）に示す移動機構は、固定軸４０に沿って移動可能に設けられた第１移動軸４２と、第１移動軸４２に沿って移動可能に設けられた第２移動軸４４とから成る二軸移動機構であって、接着剤の塗布手段としてのシリンジ４６を第２移動軸４４に設けている。
かかる二軸移動機構では、図１に示す制御部によって制御されており、レンズホルダ１１の任意の箇所に接着剤２２，２２を塗布できる。このため、接着剤２２，２２を塗布する位置を結ぶ直線が固定軸４０と平行な直線上となる位置のみならず、レンズホルダ１１の切欠溝２４，２４・・の位置によっては、接着剤２２，２２を塗布する位置を結ぶ直線が、図２（ｂ）に示す様に、固定軸４０と交差する方向の位置にも、接着剤２２，２２を塗布できる。 As described above, in the lens holder mounting apparatus shown in FIG. 1, since the control unit for controlling the stepping motor and the like is provided, the positions of the cutout grooves 24, 24,. Using the data, the moving mechanism for moving the adhesive applying means shown in FIG. 2 (a) is controlled to apply the adhesive at a position avoiding the notch grooves 24,.
The moving mechanism shown in FIG. 2A includes a first moving shaft 42 provided so as to be movable along the fixed shaft 40, and a second moving shaft 44 provided so as to be movable along the first moving shaft 42. The second moving shaft 44 is provided with a syringe 46 as a means for applying an adhesive.
Such a biaxial moving mechanism is controlled by the control unit shown in FIG. 1, and can apply the adhesives 22 and 22 to any location of the lens holder 11. For this reason, depending on the position of the notch grooves 24, 24... Of the lens holder 11 as well as the position where the straight line connecting the positions where the adhesives 22, 22 are applied is on a straight line parallel to the fixed shaft 40, the adhesive 22 As shown in FIG. 2B, the adhesives 22 and 22 can be applied to the positions in the direction intersecting the fixed shaft 40 as shown in FIG.

具体的には、図３（ａ）に示す様に、フォーカス調整が終了して調整こま２６が停止したとき、図３（ａ）に示す様に、切欠溝２４，２４を結ぶ直線Ａと固定軸４０と平行な直線Ｂとの角度θ１が４５°よりも小さいとき、図３（ｂ）に示す様に、直線Ａに対する補正角θ２が４５°となる直線Ｃ上に位置し且つレンズホルダ１１と筒状筒体部１０ａとの境界に接着剤２２，２２を塗布するように、第１移動軸４２及び第２移動軸４４を制御することが好ましい。図３（ｂ）に示す位置に接着剤２２，２２を塗布することによって、レンズホルダ１１と筒状筒体部１０ａとを接着剤２２，２２によって確実に接合できる。
図１及び図２に示すカメラモジュールの製造方法によれば、制御部は、レンズホルダ１１のフォーカス調整を終了したとき、センサ３２の調整こま２６に形成した切欠部３０の検知信号とステッピングモータからの調整こま２６の回転角度とからフォーカス調整開始位置を検出できる。
従って、レンズホルダ１１のフォーカス調整を終了したとき、フォーカス調整開始位置とステッピングモータからのフォーカス調整開始から調整終了するまでの調整こま２６の回転数とに基づいて、フォーカス調整終了したときのレンズホルダ１１の切欠溝２４，２４・・の位置を検出できる。
次いで、制御部は、検出した切欠溝２４，２４・・の位置データに基づいて、図２に示す二軸移動機構を制御し、レンズホルダ１１の切欠溝２４，２４・・を避けて接着剤２２，２２を塗布する。 Specifically, as shown in FIG. 3A, when focus adjustment is completed and the adjustment top 26 stops, as shown in FIG. 3A, the straight line A connecting the notch grooves 24 and 24 is fixed. when the angle theta 1 between the shaft 40 and parallel to the straight line B is less than 45 °, as shown in FIG. 3 (b), the position and and lens on a straight line C which correction angle theta 2 is 45 ° relative to the straight line a It is preferable to control the first moving shaft 42 and the second moving shaft 44 so as to apply the adhesives 22 and 22 to the boundary between the holder 11 and the cylindrical tube portion 10a. By applying the adhesives 22 and 22 to the positions shown in FIG. 3B, the lens holder 11 and the cylindrical tubular body portion 10 a can be reliably joined by the adhesives 22 and 22.
According to the method for manufacturing the camera module shown in FIGS. 1 and 2, when the focus adjustment of the lens holder 11 is finished, the control unit uses the detection signal of the notch 30 formed on the adjustment top 26 of the sensor 32 and the stepping motor. The focus adjustment start position can be detected from the rotation angle of the adjustment top 26.
Therefore, when the focus adjustment of the lens holder 11 is finished, the lens holder when the focus adjustment is completed based on the focus adjustment start position and the rotation speed of the adjustment top 26 from the start of the focus adjustment from the stepping motor to the end of the adjustment. The positions of the eleven notch grooves 24, 24,... Can be detected.
Next, the control unit controls the biaxial movement mechanism shown in FIG. 2 based on the detected position data of the cutout grooves 24, 24,..., And avoids the cutout grooves 24, 24,. 22 and 22 are applied.

その結果、接着剤２２，２２をレンズホルダ１１の切欠溝２４，２４・・に塗布する事態を回避でき、レンズホルダ１１と筒状部１０ａとを接着剤２２，２２で確実に固定できる。
このため、接着剤をレンズホルダの切欠溝に塗布した不良品の発生を抑制でき、得られたカメラモジュールの検査ついても緩和を図ることができる。
以上の図１及び図２についての説明では、４個の切欠溝２４，２４・・が形成されているレンズホルダ１１について説明してきたが、切欠溝２４，２４・・が４個未満のレンズホルダ１１であっても、切欠溝２４，２４・・が４個を越えるレンズホルダ１１であっても本発明を適用できる。
また、フォーカス調整開始から調整終了するまでの調整こま２６の回転数は、調整こま２６を回転する回転手段として用いたステッピングモータによって検出しているが、調整こま２６を回転する回転手段として用いた通常のモータとエンコーダとを組み合わせて、フォーカス調整開始から調整終了するまでの調整こま２６の回転数を検出してもよい。 As a result, it is possible to avoid the situation where the adhesives 22 and 22 are applied to the notched grooves 24, 24... Of the lens holder 11, and the lens holder 11 and the cylindrical portion 10a can be reliably fixed by the adhesives 22 and 22.
For this reason, generation | occurrence | production of the inferior goods which apply | coated the adhesive agent to the notch groove | channel of a lens holder can be suppressed, and it can aim at relaxation also about the inspection of the obtained camera module.
1 and 2, the lens holder 11 having four cutout grooves 24, 24,... Has been described. However, the lens holder having less than four cutout grooves 24, 24,. 11 or the lens holder 11 having more than four notch grooves 24, 24,.
The rotation speed of the adjustment top 26 from the start of the focus adjustment to the end of the adjustment is detected by the stepping motor used as the rotation means for rotating the adjustment top 26. However, the rotation speed of the adjustment top 26 is used as the rotation means. A rotation number of the adjustment top 26 from the start of focus adjustment to the end of adjustment may be detected by combining a normal motor and an encoder.

本発明で用いるレンズホルダの装着装置の概要を説明する説明図である。It is explanatory drawing explaining the outline | summary of the mounting apparatus of the lens holder used by this invention. 本発明で用いる二軸移動機構の概要を説明する説明図である。It is explanatory drawing explaining the outline | summary of the biaxial moving mechanism used by this invention. レンズホルダ１１の切欠溝２４，２４・・の位置と接着剤塗付位置との関係を説明する説明図である。It is explanatory drawing explaining the relationship between the position of the notch grooves 24 of the lens holder 11, and 24 .. and an adhesive application position. レンズホルダ１１と本体ホルダ１０との内部構造を説明する断面図である。3 is a cross-sectional view illustrating the internal structure of the lens holder 11 and the main body holder 10. FIG. レンズホルダ１１と筒状部１０ａとを接着剤２２，２２で固定する状態を説明する部分断面図である。It is a fragmentary sectional view explaining the state which fixes the lens holder 11 and the cylindrical part 10a with the adhesive agents 22 and 22. FIG. 従来のレンズホルダの装着装置の概要を説明する説明図である。It is explanatory drawing explaining the outline | summary of the mounting apparatus of the conventional lens holder. 従来の一軸移動機構の概要を説明する説明図である。It is explanatory drawing explaining the outline | summary of the conventional uniaxial moving mechanism. 従来の一軸移動機構を用いた場合、レンズホルダの切欠溝の位置と接着剤塗付位置との関係を説明する説明図である。When a conventional uniaxial movement mechanism is used, it is explanatory drawing explaining the relationship between the position of the notch groove of a lens holder, and an adhesive application position.

符号の説明Explanation of symbols

１０ 本体ホルダ
１０ａ 筒状部
１１ レンズホルダ
１２ 受光レンズ
２１ 撮像素子
２２ 接着剤
２４ 切欠溝
２５ 回転軸
２８ フック
３０ 切欠部
３２ センサ
４０ 固定軸
４２ 第１移動軸
４４ 第２移動軸
４６ シリンジ DESCRIPTION OF SYMBOLS 10 Main body holder 10a Tubular part 11 Lens holder 12 Light receiving lens 21 Image pick-up element 22 Adhesive 24 Notch groove 25 Rotating shaft 28 Hook 30 Notch 32 Sensor 40 Fixed shaft 42 First moving shaft 44 Second moving shaft 46 Syringe

Claims (4)

受光レンズが設けられたレンズホルダの端面の端縁に形成された複数個の切欠溝に、フォーカス調整用の調整こまのフックを係合し、前記調整こまを回転させて前記レンズホルダをホルダ本体の筒状部にねじ込みつつ、前記受光レンズのフォーカス位置に位置合わせした後、前記レンズホルダの端縁に沿う複数個所に接着剤を塗布して、前記レンズホルダの端縁と筒状部の端縁とを固定する際に、
前記フォーカス調整開始位置とフォーカス調整開始から調整が終了するまでの調整こまの回転数とに基づいて、フォーカス調整が終了したときの前記切欠溝の位置を検出し、
次いで、前記接着剤の塗布手段を移動する移動機構を、前記切欠溝を避けた位置に接着剤を塗布できるように、前記フォーカス調整が終了したときの切欠溝の位置に基づいて制御することを特徴とするカメラモジュールの製造方法。 A plurality of notch grooves formed on the edge of the end surface of the lens holder provided with the light receiving lens are engaged with an adjustment top hook for focus adjustment, and the adjustment top is rotated to attach the lens holder to the holder main body. After being aligned with the focus position of the light receiving lens while being screwed into the cylindrical portion, an adhesive is applied to a plurality of locations along the edge of the lens holder, and the edge of the lens holder and the end of the cylindrical portion are When fixing the edges,
Based on the focus adjustment start position and the rotation speed of the adjustment top from the start of the focus adjustment to the end of the adjustment, the position of the notch groove when the focus adjustment is completed is detected.
Next, the moving mechanism for moving the adhesive application means is controlled based on the position of the notch groove when the focus adjustment is completed so that the adhesive can be applied to a position avoiding the notch groove. A method for manufacturing a camera module. フォーカス調整開始位置を、調整こまに形成した目印位置をセンサで検出するまでの調整こまの回転角度から求める請求項１記載のカメラモジュールの製造方法。   2. The method of manufacturing a camera module according to claim 1, wherein the focus adjustment start position is obtained from a rotation angle of the adjustment top until the mark position formed on the adjustment top is detected by the sensor. フォーカス調整開始から調整終了するまでの調整こまの回転数を、調整こまを回転する回転手段として用いたステッピングモータによって検出する請求項１又は請求項２記載のカメラモジュールの製造方法。   3. The method of manufacturing a camera module according to claim 1, wherein the rotation speed of the adjustment top from the start of the focus adjustment to the end of the adjustment is detected by a stepping motor used as a rotating means for rotating the adjustment top. 移動機構として、固定軸に沿って移動可能に設けられた第１移動軸と、前記第１移動軸に沿って移動可能に設けられた第２移動軸とから成る二軸移動機構を用い、前記接着剤の塗布手段を前記第２移動軸に設ける請求項１〜３のいずれか一項記載のカメラモジュールの製造方法。   As the moving mechanism, a biaxial moving mechanism comprising a first moving shaft provided movably along a fixed shaft and a second moving shaft provided movably along the first moving shaft is used. The manufacturing method of the camera module as described in any one of Claims 1-3 which provides the application means of an adhesive agent in the said 2nd moving shaft.
JP2006169929A 2006-06-20 2006-06-20 Manufacturing method of camera module Pending JP2008005011A (en)

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