JP2008020523A - Imaging apparatus - Google Patents

Imaging apparatus Download PDF

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Publication number
JP2008020523A
JP2008020523A JP2006190253A JP2006190253A JP2008020523A JP 2008020523 A JP2008020523 A JP 2008020523A JP 2006190253 A JP2006190253 A JP 2006190253A JP 2006190253 A JP2006190253 A JP 2006190253A JP 2008020523 A JP2008020523 A JP 2008020523A
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Japan
Prior art keywords
holding member
elastic member
lens
imaging device
holder
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JP2006190253A
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Japanese (ja)
Inventor
Masao Fujiwara
将郎 藤原
Kenichi Kudo
憲一 工藤
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Seiko Precision Inc
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Seiko Precision Inc
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Priority to JP2006190253A priority Critical patent/JP2008020523A/en
Priority to PCT/JP2007/062961 priority patent/WO2008007558A1/en
Priority to CNA2007800261739A priority patent/CN101490592A/en
Priority to KR1020087027984A priority patent/KR20080110682A/en
Publication of JP2008020523A publication Critical patent/JP2008020523A/en
Withdrawn legal-status Critical Current

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    • 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
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/51—Housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • 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

Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging apparatus which is small in thickness and can maintain clear image quality over a long period of time. <P>SOLUTION: The imaging apparatus 1 includes: a substrate 70 on which an imaging device 60 is mounted; a holder 50 fixed to the substrate 70 so as to surround the imaging device 60; a holding member 30 equipped with lenses 11 and 12 that are provided movably in the optical axis direction, for forming images in the imaging device 70; a cover member 20, arranged facing the holding member 30 on a side opposite to the side, where the sealing frame 50 for the holding member 30 is arranged; and an elastic member 90 arranged between the holding member 30 and the cover member 20 so as to energize the holding member 30 directed toward the sealing frame 50. The elastic member 90 is formed in a shape of shielding the gap between the holding member 30 and the cover member 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、撮像装置に関する。   The present invention relates to an imaging apparatus.

近年、携帯電話に搭載されている撮像装置においても、近接撮影（マクロ撮影）と通常撮影の切替を可能とするものがある。このような切替は、レンズを光軸方向に移動させるための機構が必要となる。例えば、特許文献１には、このような機構を有する撮像装置が開示されている。   In recent years, some imaging devices mounted on mobile phones can switch between close-up photography (macro photography) and normal photography. Such switching requires a mechanism for moving the lens in the optical axis direction. For example, Patent Document 1 discloses an imaging apparatus having such a mechanism.

図５は、従来のレンズを駆動させるための機構を有する撮像装置を、携帯電話に採用した場合の構成を示したものである。このような撮像装置は、カバー部材１２０に、スポンジなどの弾性部材２１０を介して携帯電話の外枠２００の内壁に固定される。撮像装置は、携帯電話の外枠２００の開口部、レンズホルダ１３０の開口部１３１を介して、レンズ群１１０に被写体光が進入し、光学フィルタ１８０を通過して、基板１７０に実装された撮像素子１６０の撮像面に結像する。   FIG. 5 shows a configuration in a case where an imaging device having a mechanism for driving a conventional lens is employed in a mobile phone. Such an image pickup apparatus is fixed to the cover member 120 on the inner wall of the outer frame 200 of the mobile phone via an elastic member 210 such as a sponge. The imaging device is configured such that subject light enters the lens group 110 via the opening of the outer frame 200 of the mobile phone and the opening 131 of the lens holder 130, passes through the optical filter 180, and is mounted on the substrate 170. An image is formed on the imaging surface of the element 160.

このような撮像装置は、レンズ群１１０を保持するレンズホルダ１３０と、レンズホルダ１３０と螺合して接着された鏡筒１４３と、鏡筒１４３の撮像素子１６０側に配置されたリング状のレバー部材１４２などを備えている。
鏡筒１４３とレバー部材１４２とは、段部を介して摺動可能に当接し、その当接面には互いにカム面が形成されている。また、鏡筒１４３と同心状に配置されたコイルばね１９０は、鏡筒１４３とレバー部材１４２とのガタつきを抑え、カムによる駆動を安定させるために、鏡筒１４３をレバー部材１４２に向けて付勢する。
レバー部材１４２を回転させることにより、鏡筒１４３に光軸方向にカム作用が及び、鏡筒１４３は、レンズホルダ１３０及びレンズ群１１０と共に光軸方向に移動する。このレンズの光軸方向に移動することにより、撮像素子１６０に対するレンズの位置が変更され、近接撮影と通常撮影の切替が行われる。尚、レバー部材１４２は、封止枠１５０と摺動可能に当接し、コイルばね１９０は、鏡筒１４３とカバー部材１２０との間に配置される。 Such an imaging device includes a lens holder 130 that holds the lens group 110, a lens barrel 143 that is screwed and bonded to the lens holder 130, and a ring-shaped lever that is disposed on the imaging element 160 side of the lens barrel 143. A member 142 and the like are provided.
The lens barrel 143 and the lever member 142 are slidably contacted via a stepped portion, and cam surfaces are formed on the contact surfaces. In addition, the coil spring 190 arranged concentrically with the lens barrel 143 suppresses rattling between the lens barrel 143 and the lever member 142, and in order to stabilize the drive by the cam, the lens barrel 143 is directed toward the lever member 142. Energize.
By rotating the lever member 142, the lens barrel 143 has a cam action in the optical axis direction, and the lens barrel 143 moves in the optical axis direction together with the lens holder 130 and the lens group 110. By moving in the optical axis direction of the lens, the position of the lens with respect to the image sensor 160 is changed, and switching between close-up shooting and normal shooting is performed. The lever member 142 slidably contacts the sealing frame 150, and the coil spring 190 is disposed between the lens barrel 143 and the cover member 120.

特開２００６−１１３１６８号公報JP 2006-113168 A

しかしながら、上記のような撮像装置では、携帯電話などに搭載した場合、携帯電話の可動部から携帯電話内部に塵が侵入し、この塵がコイルばね１９０の間を通り抜け、レンズ群１１０に付着するという問題があった。そのため、携帯電話の長期間の使用により、撮像装置のレンズが曇り鮮明な画像を撮像することができなくなるという問題があった。
また、特許文献１に開示されている撮像装置についても同様に、切替レバーを揺動可能とするために取付台に形成された切欠きから侵入した塵が、コイルばねの間を通り、カバー部材と調整部材との上部の隙間を通過して、レンズに付着するおそれがあった。また、コイルばね１９０は、線状部材をコイル状にして弾性力を持たせるために厚み方向（光軸方向）にある程度のスペースを必要とするため、撮像装置の薄型化に不利であった。 However, in the above-described imaging device, when mounted on a mobile phone or the like, dust enters the mobile phone from the movable portion of the mobile phone, and the dust passes through the coil spring 190 and adheres to the lens group 110. There was a problem. For this reason, there has been a problem that the lens of the imaging device cannot capture a cloudy and clear image due to long-term use of the mobile phone.
Similarly, in the imaging device disclosed in Patent Document 1, dust that has entered from a notch formed in the mounting base in order to allow the switching lever to swing passes between the coil springs, and covers the cover member. There is a possibility that it will adhere to the lens through the gap above the adjustment member. Further, the coil spring 190 is disadvantageous for making the imaging device thin because a certain amount of space is required in the thickness direction (optical axis direction) in order to make the linear member into a coil shape and to have an elastic force.

そこで、本発明は、薄型で長期的に鮮明な画質を維持できる撮像装置を提供することを目的とする。   Accordingly, an object of the present invention is to provide an imaging apparatus that is thin and capable of maintaining clear image quality over a long period of time.

上記目的は、撮像素子を搭載する基板と、前記撮像素子を包囲するように前記基板に固定されるホルダと、前記ホルダに光軸方向に移動可能に設けられると共に、前記撮像素子に結像するレンズを備える保持部材と、前記保持部材の前記ホルダが配置された側と反対側で前記保持部材と対向配置された固定部材と、前記保持部材と前記固定部材との間に配置され前記保持部材を前記ホルダ側に向けて付勢する弾性部材とを備え、前記弾性部材は、前記保持部材と前記固定部材との隙間を遮断する形状に形成されている撮像装置によって達成できる。
この構成により、保持部材と固定部材との隙間や弾性部材の中を通って塵が内部へ侵入することを防止できる。従って、レンズに塵が付着することを防止でき、長期的な使用によっても鮮明な画質を維持することができる。 The object is to provide a substrate on which an image pickup device is mounted, a holder fixed to the substrate so as to surround the image pickup device, an image formed on the image pickup device while being provided on the holder so as to be movable in the optical axis direction. A holding member having a lens, a fixing member disposed opposite to the holding member on the side opposite to the side on which the holder is disposed, and the holding member disposed between the holding member and the fixing member. The elastic member can be achieved by an imaging device formed in a shape that blocks a gap between the holding member and the fixing member.
With this configuration, it is possible to prevent dust from entering the inside through the gap between the holding member and the fixing member or the elastic member. Therefore, it is possible to prevent dust from adhering to the lens, and clear image quality can be maintained even after long-term use.

また、上記構成において、前記弾性部材は、径方向の断面形状が外部に向けて開くようにＵ字状に形成されている、構成を採用できる。
弾性部材の断面をＵ字状とすることにより、光軸方向への保持部材の移動を許容する程度の弾性力を確保しつつ、弾性部材と保持部材及び固定部材との接触面積を大きく確保することにより、防塵効果に優れた撮像装置を提供できる。 Moreover, the said structure can employ | adopt the structure where the said elastic member is formed in the U-shape so that the cross-sectional shape of radial direction may open toward the exterior.
A U-shaped cross section of the elastic member ensures a large contact area between the elastic member, the holding member, and the fixing member while ensuring an elastic force that allows the holding member to move in the optical axis direction. Thus, it is possible to provide an imaging device having an excellent dustproof effect.

また、上記構成において、前記弾性部材は、ゴムである、構成を採用できる。
この構成により、低コストで撮像装置を製造することができる。また、撮像装置を薄型化することができる。
また、上記に記載の撮像装置を搭載した電子機器は、長期的に鮮明な画質を撮像することができる。 Moreover, the said structure WHEREIN: The said elastic member can employ | adopt the structure which is rubber | gum.
With this configuration, the imaging device can be manufactured at low cost. In addition, the imaging device can be thinned.
In addition, an electronic device equipped with the imaging device described above can capture a clear image quality over the long term.

本発明により、薄型で長期的に鮮明な画質を維持できる撮像装置を提供できる。   According to the present invention, it is possible to provide a thin imaging device capable of maintaining a clear image quality over a long period of time.

以下、本発明に係る一実施形態を図面を参照して説明する。図１は、撮像装置１の平面図で、図２は、図１のＡ−Ａ線断面図である。
撮像装置１は、第１レンズ１１及び第２レンズ１２の２枚のレンズから構成されるレンズ群１０を光軸方向に移動自在に保持するレンズホルダ(保持部材)３０及びリング部材（保持部材）４０と、リング部材４０との相対的な回転により光軸方向のカム作用をリング部材４０に及ぼす封止枠（ホルダ）５０と、封止枠５０が配置された側と反対側でリング部材４０と対向配置されたカバー部材（固定部材）２０と、リング部材４０とカバー部材２０との間に配置されリング部材４０を封止枠５０側に向けて付勢し、レンズ群１０を駆動する弾性部材９０等を備えている。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a plan view of the imaging apparatus 1, and FIG. 2 is a cross-sectional view taken along line AA of FIG.
The imaging device 1 includes a lens holder (holding member) 30 and a ring member (holding member) that hold a lens group 10 including two lenses, a first lens 11 and a second lens 12, movably in the optical axis direction. 40 and a sealing frame (holder) 50 that exerts a cam action in the optical axis direction on the ring member 40 by relative rotation between the ring member 40 and the ring member 40 on the side opposite to the side where the sealing frame 50 is disposed. And a cover member (fixing member) 20 disposed opposite to the ring member 40 and an elastic member that is disposed between the ring member 40 and the cover member 20 to bias the ring member 40 toward the sealing frame 50 and drive the lens group 10. The member 90 etc. are provided.

カバー部材２０は、後述する封止枠５０から光軸方向に延伸したピン部５３と嵌合して、封止枠５０に固定される。また、カバー部材２０は、その撮像素子６０側の面に、弾性部材９０の端部が当接する。   The cover member 20 is fixed to the sealing frame 50 by fitting with a pin portion 53 extending in the optical axis direction from a sealing frame 50 described later. Further, the end of the elastic member 90 comes into contact with the surface of the cover member 20 on the imaging element 60 side.

レンズホルダ３０は、円筒状に形成されておりレンズ群１０が内側に保持されている。このレンズ２の撮像素子６０側には光学フィルタ５が配設されている。レンズホルダ３０は、被写体側に開口部３１が形成され、被写体光が開口部３１を通過して、撮像素子６０の撮像面において結像する。
このレンズホルダ３０の外周と、リング部材４０の内周とは、螺合部分Ｌにより螺合して接続される。 The lens holder 30 is formed in a cylindrical shape, and the lens group 10 is held inside. An optical filter 5 is provided on the image sensor 60 side of the lens 2. In the lens holder 30, an opening 31 is formed on the subject side, and subject light passes through the opening 31 and forms an image on the imaging surface of the image sensor 60.
The outer periphery of the lens holder 30 and the inner periphery of the ring member 40 are screwed and connected by a screwing portion L.

リング部材４０は、円筒状に形成されており、その内周においてレンズホルダ３０と螺合する。また、螺合部分Ｌには、接着剤を塗布され、レンズホルダ３０はリング部材４０に固定されている。   The ring member 40 is formed in a cylindrical shape, and is screwed with the lens holder 30 on the inner periphery thereof. Further, an adhesive is applied to the threaded portion L, and the lens holder 30 is fixed to the ring member 40.

また、リング部材４０の外周には、レバー４２が径方向に突出して形成されている。レバー４２が回されることにより、リング部材４０は所定の方向に回転する。また、リング部材４０は、封止枠５０と摺動回転可能に当接する。リング部材４０の、封止枠５０と当接する撮像素子側面には、光軸方向に高さの異なるカム面４１が形成されており、また、封止枠５０、リング部材と当接する被写体側面には、カム面４１と当接する従動面５１が形成されている。   Further, a lever 42 is formed on the outer periphery of the ring member 40 so as to protrude in the radial direction. As the lever 42 is rotated, the ring member 40 rotates in a predetermined direction. Further, the ring member 40 is in contact with the sealing frame 50 so as to be slidable and rotatable. A cam surface 41 having a different height in the optical axis direction is formed on the side surface of the image sensor that contacts the sealing frame 50 of the ring member 40, and also on the side surface of the subject that contacts the sealing frame 50 and the ring member. Is formed with a driven surface 51 in contact with the cam surface 41.

従って、レバー４２が所定方向に回されることにより、カム面４１と従動面５１とにより、カム作用がリング部材４０に及ぼされ、リング部材４０は、光軸方向に移動する。また、リング部材４０には、レンズホルダ３０が固着している。このため、リング部材４０は、レンズ群１０を光軸方向に移動自在に保持する。   Therefore, when the lever 42 is rotated in a predetermined direction, the cam action is exerted on the ring member 40 by the cam surface 41 and the driven surface 51, and the ring member 40 moves in the optical axis direction. The lens holder 30 is fixed to the ring member 40. For this reason, the ring member 40 holds the lens group 10 movably in the optical axis direction.

封止枠５０は、その底面が基板７０に接着剤で固定され、中央部に被写体光の通過を許容する開口部５２が形成されている。
撮像素子６０は、例えばＣＣＤ（Charge Coupled Device）、ＣＭＯＳ（Complementary Metal Oxide Semiconductor）イメージセンサ等の画像出力センサが採用されている。撮像素子６０は、例えばフリップチップ実装(ｆlip chip bonding)によって基板７０上の配線パターンに接続されている。
光学フィルタ８０は、例えば赤外線をカットするＩＲカットフィルタが採用されている。 The bottom surface of the sealing frame 50 is fixed to the substrate 70 with an adhesive, and an opening 52 that allows passage of subject light is formed at the center.
For example, an image output sensor such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor) image sensor is employed as the imaging device 60. The image sensor 60 is connected to a wiring pattern on the substrate 70 by flip chip bonding, for example.
For example, an IR cut filter that cuts infrared rays is employed as the optical filter 80.

図３は、弾性部材９０の構成を示した図である。図３（ａ）は、弾性部材９０の正面図、図３（ｂ）は、弾性部材９０の側面図である。
弾性部材９０は、保持部材であるリング部材４０と固定部材であるカバー部材２０との隙間を遮断し、保持部材であるレンズホルダ３０を包囲するように隙間なく環状に形成されている。また、弾性部材９０は、所定の厚みを有して断面がＵ字上に形成されている。そして、弾性部材９０の外周側から内周側に塵等が侵入しないように、弾性部材９０は隙間のない構成となっている。また、弾性部材９０は、ゴムにより形成されている。 FIG. 3 is a diagram showing the configuration of the elastic member 90. FIG. 3A is a front view of the elastic member 90, and FIG. 3B is a side view of the elastic member 90.
The elastic member 90 is formed in an annular shape without a gap so as to block a gap between the ring member 40 as a holding member and the cover member 20 as a fixing member and surround the lens holder 30 as a holding member. Further, the elastic member 90 has a predetermined thickness and has a U-shaped cross section. The elastic member 90 is configured without a gap so that dust or the like does not enter from the outer peripheral side to the inner peripheral side of the elastic member 90. The elastic member 90 is made of rubber.

弾性部材９０は、図１及び図２に示すように、レンズホルダ３０や封止枠５０等と同心状に配置され、その一端部をカバー部材２０の撮像素子側面に固定され、他端部をリング部材４０の被写体側面と当接する。また、弾性部材９０は、リング部材４０とカバー部材２０との隙間を遮断し、レンズホルダ３０を包囲する環状に形成されている。
この構成により、レンズを駆動するための弾性部材９０がリング部材４０とカバー部材２０との隙間から塵が撮像装置１の内部へ侵入することを防止できる。従って、レンズ群１０に塵が付着することを防止でき、長期的な使用によっても鮮明な画質を維持することができる。
また、弾性部材９０は、ゴムであるので、低コストで撮像装置１を製造することができる。また、コイルばねは、線状部材をコイル状にして弾性力を持たせるために厚み方向（光軸方向）にある程度のスペースを必要とするが、ゴムの場合は、コイルばねよりも厚み方向にスペースを必要としない。このため、弾性部材９０にゴムを採用すれば撮像装置１を薄型化できる。 As shown in FIGS. 1 and 2, the elastic member 90 is disposed concentrically with the lens holder 30, the sealing frame 50, and the like, one end of which is fixed to the side surface of the imaging element of the cover member 20, and the other end is The ring member 40 is in contact with the subject side surface. The elastic member 90 is formed in an annular shape that blocks the gap between the ring member 40 and the cover member 20 and surrounds the lens holder 30.
With this configuration, the elastic member 90 for driving the lens can prevent dust from entering the inside of the imaging device 1 from the gap between the ring member 40 and the cover member 20. Therefore, it is possible to prevent dust from adhering to the lens group 10, and it is possible to maintain a clear image quality even with long-term use.
Moreover, since the elastic member 90 is rubber | gum, the imaging device 1 can be manufactured at low cost. In addition, the coil spring requires a certain amount of space in the thickness direction (optical axis direction) in order to give the linear member a coil shape and give an elastic force. Does not require space. For this reason, if rubber | gum is employ | adopted for the elastic member 90, the imaging device 1 can be reduced in thickness.

図４は、本実施形態に採用されている弾性部材９０の断面図と、本実施形態以外の異なる断面形状を有する弾性部材を採用した場合の説明図である。
図４（ａ）に示すように、弾性部材９０は、径方向の断面形状が外部に向けて開くようにＵ字状に形成されている。
図４（ｂ）は、本実施形態とは異なる断面形状を有する弾性部材９０ａを採用した場合の説明図である。
図４（ｂ）に示すように、弾性部材９０ａの径方向の厚みが薄すぎると、弾性部材９０ａの付勢力が小さいため、リング部材４０の光軸方向への移動に支障が生じるおそれがある。しかし、レンズホルダ等が小さくそれほど弾性部材による付勢力が要求されない場合には、図４（ｂ）のような弾性部材９０ａを採用してもよい。 FIG. 4 is a cross-sectional view of the elastic member 90 employed in the present embodiment, and an explanatory diagram in the case where an elastic member having a different cross-sectional shape other than the present embodiment is employed.
As shown in FIG. 4A, the elastic member 90 is formed in a U shape so that the cross-sectional shape in the radial direction opens toward the outside.
FIG. 4B is an explanatory diagram when an elastic member 90a having a cross-sectional shape different from the present embodiment is employed.
As shown in FIG. 4B, if the elastic member 90a is too thin in the radial direction, the urging force of the elastic member 90a is small, which may hinder the movement of the ring member 40 in the optical axis direction. . However, when the lens holder or the like is small and the urging force by the elastic member is not so required, an elastic member 90a as shown in FIG. 4B may be employed.

例えば図４（ｃ）に示すように、弾性部材９０ｂの径方向の厚みを増すことにより、弾性部材９０ｂの付勢力を大きくすることができる。しかし、このようにすると、弾性部材９０ｂの光軸方向へ伸縮率が小さくなり、光軸方向へのリング部材４０の移動に対向する力が大きくなりすぎ、リング部材４０を回転させるための駆動力が増大するおそれがある。しかし、何らかの事情により強い付勢力が必要な場合は、図４（ｃ）のような弾性部材を採用してもよい。   For example, as shown in FIG. 4C, the urging force of the elastic member 90b can be increased by increasing the radial thickness of the elastic member 90b. However, if this is done, the expansion / contraction rate in the optical axis direction of the elastic member 90b is reduced, the force facing the movement of the ring member 40 in the optical axis direction becomes too large, and the driving force for rotating the ring member 40 May increase. However, when a strong urging force is required for some reason, an elastic member as shown in FIG.

図４（ａ）に示すように、弾性部材９０の断面をＵ字状とすることにより、光軸方向へのリング部材４０の移動を許容する程度の弾性力を確保しつつ、弾性部材９０とリング部材４０及びカバー部材２０との接触面積を大きく確保することにより、弾性部材９０とリング部材４０及びカバー部材２０との間に隙間が生じるのを防止でき、防塵効果に優れた撮像装置を提供できる。   As shown in FIG. 4A, the elastic member 90 has a U-shaped cross section so that the elastic member 90 and the elastic member 90 can be secured while ensuring an elastic force that allows the ring member 40 to move in the optical axis direction. By ensuring a large contact area between the ring member 40 and the cover member 20, it is possible to prevent a gap from being generated between the elastic member 90 and the ring member 40 and the cover member 20, and to provide an imaging device having an excellent dustproof effect it can.

また、図４（ｄ）は、弾性部材９０ｃが、径方向の断面形状が内部に向けて開くようにＵ字状に形成されている場合の拡大図である。内部に向けて開くようにＵ字状に形成されている場合、弾性部材９０ｃとリング部材４０及びカバー部材２０との間に隙間が生じ易く、この隙間に外部から侵入した塵などがたまると、リング部材４０の光軸方向へのスムーズな移動の障害となるおそれがある。
そこで、図４（ａ）に示したように、外部に向けて開くようにＵ字状に形成させた場合の方がより弾性部材９０とリング部材４０及びカバー部材２０との間に塵がたまることを防止でき、リング部材４０の光軸方向へのスムーズな移動を確保できる。 FIG. 4D is an enlarged view in the case where the elastic member 90c is formed in a U shape so that the radial cross-sectional shape opens toward the inside. When it is formed in a U shape so as to open toward the inside, a gap is likely to occur between the elastic member 90c and the ring member 40 and the cover member 20, and when dust or the like entering from the outside accumulates in this gap, There is a possibility that the smooth movement of the ring member 40 in the optical axis direction becomes an obstacle.
Therefore, as shown in FIG. 4A, dust is collected between the elastic member 90, the ring member 40, and the cover member 20 in the case where it is formed in a U shape so as to open outward. This can be prevented, and smooth movement of the ring member 40 in the optical axis direction can be ensured.

以上本発明の好ましい一実施形態について詳述したが、本発明は係る特定の実施形態に限定されるものではなく、特許請求の範囲に記載された本発明の要旨の範囲内において、種々の変形・変更が可能である。   The preferred embodiment of the present invention has been described in detail above, but the present invention is not limited to the specific embodiment, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.

例えば、上記実施例で説明した撮像装置を携帯電話などに搭載することにより、長期的に鮮明な画像を撮像できる携帯電話を提供することができる。また、携帯電話以外の電子機器に搭載してもよい。また、保持部材は、レンズを保持するレンズホルダ３０とリング部材４０とで構成されていたが、これに限らず、図５の構成のようにリング部材４０をレバーの付いたレバー部材とレンズホルダを保持するホルダ保持部材との２部材に分けてもよい。この場合は、レンズを駆動するカムは、レバー部材とホルダ保持部材との間またはレバー部材と固定部材との間に設ければよい。   For example, by mounting the imaging device described in the above embodiment on a mobile phone or the like, it is possible to provide a mobile phone that can capture clear images over a long period of time. Moreover, you may mount in electronic devices other than a mobile telephone. Further, the holding member is constituted by the lens holder 30 and the ring member 40 for holding the lens. However, the present invention is not limited to this, and the lever member and the lens holder with a lever as shown in FIG. You may divide into two members with the holder holding member which hold | maintains. In this case, the cam for driving the lens may be provided between the lever member and the holder holding member or between the lever member and the fixing member.

撮像装置１の正面図である。2 is a front view of the imaging apparatus 1. FIG. 図２は、図１のＡ−Ａ断面図である。FIG. 2 is a cross-sectional view taken along the line AA of FIG. 弾性部材の構成を示した図である。It is the figure which showed the structure of the elastic member. 本実施形態に採用されている弾性部材の断面図と、本実施形態以外の異なる断面形状を有する弾性部材を採用した場合の説明図である。It is sectional drawing of the elastic member employ | adopted as this embodiment, and explanatory drawing at the time of employ | adopting the elastic member which has different cross-sectional shapes other than this embodiment. 従来のレンズを駆動させるための機構を有する撮像装置を、携帯電話に採用した場合の構成を示したものである。1 shows a configuration when a conventional imaging device having a mechanism for driving a lens is employed in a mobile phone.

符号の説明Explanation of symbols

１ 撮像装置
１０ レンズ群
１１ 第１レンズ
１２ 第２レンズ
２０ カバー部材
３０ レンズホルダ
３１ 開口部
４０ リング部材
４１ カム面
４２ レバー
５０ 封止枠
５１ 従動面
５２ 開口部
６０ 撮像素子
７０ 基板
８０ 光学フィルタ
９０ 弾性部材
DESCRIPTION OF SYMBOLS 1 Imaging device 10 Lens group 11 1st lens 12 2nd lens 20 Cover member 30 Lens holder 31 Opening part 40 Ring member 41 Cam surface 42 Lever 50 Sealing frame 51 Driven surface 52 Opening part 60 Imaging element 70 Substrate 80 Optical filter 90 Elastic member

Claims (4)

撮像素子を搭載する基板と、
前記撮像素子を包囲するように前記基板に固定されるホルダと、
前記ホルダに光軸方向に移動可能に設けられると共に、前記撮像素子に結像するレンズを備える保持部材と、
前記保持部材の前記ホルダが配置された側と反対側で前記保持部材と対向配置された固定部材と、
前記保持部材と前記固定部材との間に配置され前記保持部材を前記ホルダ側に向けて付勢する弾性部材とを備え、
前記弾性部材は、前記保持部材と前記固定部材との隙間を遮断する形状に形成されている、
ことを特徴とする撮像装置。 A substrate on which an image sensor is mounted;
A holder fixed to the substrate so as to surround the imaging element;
A holding member that is provided in the holder so as to be movable in the optical axis direction and includes a lens that forms an image on the imaging device;
A fixing member disposed opposite to the holding member on the side opposite to the side on which the holder is disposed of the holding member;
An elastic member disposed between the holding member and the fixing member and biasing the holding member toward the holder;
The elastic member is formed in a shape that blocks a gap between the holding member and the fixing member.
An imaging apparatus characterized by that. 前記弾性部材は、径方向の断面形状が外部に向けて開くようにＵ字状に形成されている、
ことを特徴とする請求項１に記載の撮像装置。 The elastic member is formed in a U shape so that a radial cross-sectional shape opens outward,
The imaging apparatus according to claim 1. 前記弾性部材は、ゴムである、
ことを特徴とする請求項１又は２に記載の撮像装置。 The elastic member is rubber.
The imaging apparatus according to claim 1 or 2, wherein 請求項１乃至３の何れかに記載の撮像装置を搭載した、
ことを特徴とする電子機器。
Mounted with the imaging device according to claim 1,
An electronic device characterized by that.
JP2006190253A 2006-07-11 2006-07-11 Imaging apparatus Withdrawn JP2008020523A (en)

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CNA2007800261739A CN101490592A (en) 2006-07-11 2007-06-28 Imaging apparatus
KR1020087027984A KR20080110682A (en) 2006-07-11 2007-06-28 Imaging apparatus

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JP2015049509A (en) * 2013-09-04 2015-03-16 ニング アレックス Lens mount

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US9210311B2 (en) * 2012-04-06 2015-12-08 Htc Corporation Camera module for portable device
KR102255446B1 (en) * 2014-08-04 2021-05-24 엘지이노텍 주식회사 Camera module for vehicle
EP3306387B1 (en) 2015-11-16 2018-10-03 Axis AB An elastic gasket, the use thereof, and a system comprising the elastic gasket
CN109938651A (en) * 2019-01-15 2019-06-28 尚科宁家(中国)科技有限公司 A kind of sweeping robot sensor module and the sweeping robot based on the sensor module

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KR100984338B1 (en) 2008-11-25 2010-09-30 주식회사 하이소닉 Image photographing module having spacer
JP2015049509A (en) * 2013-09-04 2015-03-16 ニング アレックス Lens mount

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