JP3791847B1 - Information terminal equipped with a camera module and the camera module - Google Patents

Information terminal equipped with a camera module and the camera module Download PDF

Info

Publication number
JP3791847B1
JP3791847B1 JP2005231858A JP2005231858A JP3791847B1 JP 3791847 B1 JP3791847 B1 JP 3791847B1 JP 2005231858 A JP2005231858 A JP 2005231858A JP 2005231858 A JP2005231858 A JP 2005231858A JP 3791847 B1 JP3791847 B1 JP 3791847B1
Authority
JP
Japan
Prior art keywords
member
drive shaft
camera module
sliding
sliding member
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.)
Expired - Fee Related
Application number
JP2005231858A
Other languages
Japanese (ja)
Other versions
JP2007047458A (en
Inventor
啓二 新家
Original Assignee
京セラ株式会社
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 京セラ株式会社 filed Critical 京セラ株式会社
Priority to JP2005231858A priority Critical patent/JP3791847B1/en
Priority claimed from EP20050793682 external-priority patent/EP1811325B1/en
Application granted granted Critical
Publication of JP3791847B1 publication Critical patent/JP3791847B1/en
Publication of JP2007047458A publication Critical patent/JP2007047458A/en
Application status is Expired - Fee Related legal-status Critical

Links

Images

Abstract

【課題】 小型で軽量に構成すると共に電歪素子と被駆動部材が摩擦当接することで生じる削りカスなどにも対処したカメラモジュールおよび該カメラモジュールを搭載した情報端末を提供する。 To provide a information terminal electrostrictive element and the driven member is equipped with a camera module and the camera module was also addressed, such as shavings generated by friction contact while constructed small and light.
【解決手段】 電歪素子8と、該電歪素子8に一端側が連結されて、該電歪素子に加えられた電圧によって軸方向に往復運動若しくは伸縮運動する駆動軸9と、該駆動軸9の周面の少なくとも一部に摩擦係合する摺動部材5が連結されたレンズ保持部2と、備えたカメラモジュールで1あって、摺動部材5近傍に粘着部材11を配設し、好ましくは前記摺動部材5が駆動軸9に対面する側の摺動方向に直角な方向に隙間を設け、前記駆動軸9に当接するように前記隙間に前記粘着部材11を配設した。 And A electrostrictive element 8, a drive shaft 9 which electrolytic distorted element 8 is connected is one end, a reciprocating or telescopic movement in the axial direction by the voltage applied to the power magnetostrictive element, the drive shaft 9 the lens holder 2 that the sliding member 5 is connected to frictionally engage at least a portion of the peripheral surface, there 1 camera module including, an adhesive member 11 disposed on the sliding member 5 near, preferably was disposing the adhesive member 11 in the gap such that the slide member 5 is provided with a gap in a direction perpendicular to the sliding direction of the side facing the drive shaft 9, abuts against the drive shaft 9.
【選択図】 図1 .FIELD 1

Description

本発明は、情報端末等に用いられる小型軽量に構成されたカメラモジュールおよび該カメラモジュールを搭載した情報端末に関する。 The present invention relates to an information terminal equipped with the camera module and the camera module configured to compact and lightweight for use in an information terminal or the like.

最近の携帯電話などの情報端末に使われるカメラモジュールは、撮像素子(CCD)の高画素化に伴ない、通常の電子カメラ(デジカメ)と同様な、高速、高精度なオートフォーカス(AF)機能や焦点距離の変化(ズーム)機能が要求され、さらに情報端末そのものの小型化、軽量化によって、必然的にカメラモジュールも小型化、軽量化が望まれている。 A camera module used in an information terminal such as a recent mobile phones, due to the increasing of pixels of the image pickup device (CCD), similar to the conventional electronic camera (digital camera), high-speed, high-precision autofocus (AF) function and change in the focal length (zoom) capabilities are required, further miniaturization of information terminals themselves, by weight, inevitably camera module also smaller, lighter is desired.

このようなカメラモジュールに於けるオートフォーカスや焦点距離の変化(ズーム)のためには、レンズ群を光軸方向に移動させることが必要であり、そのため従来では、例えば特許文献1に示されているように、光学系の側面に配置された一つの円筒カムをモータで駆動し、ズームレンズ枠とAFレンズ枠とを駆動するようにしたものや、同じくレンズ枠に隣接して配置した円筒カムをモータにより駆動し、それによってオートフォーカス用レンズ枠とズームレンズ枠とを移動させて、テレとマクロの2点切換をするようにした機構などが用いられている。 For such a change in in the camera module autofocus and focal length (zoom), it is necessary to move the lens unit in the optical axis direction, therefore in the conventional, for example, in Patent Document 1 as there, one of the cylindrical cam disposed on the side of the optical system is driven by a motor, the cylindrical cam disposed adjacent those to drive the zoom lens frame and the AF lens frame and, on the same lens frame was driven by a motor and thereby move the autofocus lens frame and the zoom lens frame, such mechanisms so as to two points switching tele and macro is used.

又円筒カムだけでなく、オートフォーカス用レンズ枠やズーム用レンズ枠をそれぞれに対応したオートフォーカス用リードスクリューやズーム用リードスクリューで駆動するよう構成し、最も被写体側のレンズをケース前面に固定すると共に、これらのリードスクリューをケースにおける一辺の隅に設ける、ケースにレンズ枠のガイド支持部を設ける、さらに、光軸周りの第1象限にズーム用リードスクリューを、第2象限にフォーカス用リードスクリューを、第3象限にレンズ枠のガイドシャフトを配置する、などの構成としたカメラモジュールや、ヘリコイド機構を用いてレンズ群を光軸方向に移動させる機構を有したカメラモジュールなどが存在する。 The well cylindrical cam, configured to drive the auto-focus lens frame and the zoom lens frame autofocus lead screw and lead screw zoom corresponding to each best secure the object side of the lens in front of the case together, provided these lead screw in a corner of one side of the case, providing a guide supporting portion of the lens frame to the case, furthermore, the first quadrant to the lead screw for zooming around the optical axis, focusing lead screw in the second quadrant and placing the lens frame of the guide shaft to the third quadrant, configuration and or camera modules such as a camera module having a mechanism for moving the optical axis direction is present the lens group with a helicoid mechanism.

しかしながら、こういった円筒カム、リードスクリュー、ヘリコイドなどを用いた従来のカメラモジュールでは、その駆動源として一般的に回転子を有する電磁モータやパルスモータが用いられているが、こういった回転子を用いた電磁モータは、回転子とその周囲に電磁石や永久磁石が必要であって軸方向長さを短くしたとしても、円柱形状部分が不可欠であるからカメラモジュールを小型化する上でのネックとなり、さらに騒音なども発生する。 However, the rotor these cylindrical cam, the lead screw, in the conventional camera module using a helicoid, but generally electromagnetic motor or a pulse motor having a rotor is used as a drive source, which went this electromagnetic motor using the neck on a required rotor and electromagnet or permanent magnet on its periphery even if short axial length, to reduce the size of the camera module from the cylindrical portion is indispensable next, well as further noise occurs.

そこで、こういった電磁モータに於ける欠点を解決するため従来から、レンズ枠を光軸方向へ移動させる駆動源として、電界や磁界の変化に応じて機械的歪みを発生するピエゾ素子(PZT)等の圧電素子で機械振動子を構成し、ロータやスライダをこの機械振動子に接触させて機械振動子の振動を出力として取り出せるようにした摩擦駆動型の駆動源、いわゆる電歪素子が用いられている。 Therefore, these were conventionally to solve in disadvantages to the electromagnetic motor as a drive source for moving the lens frame in the optical axis direction, piezoelectric element for generating mechanical strain in accordance with a change in electric field and a magnetic field (PZT) configure the mechanical oscillator in the piezoelectric element and the like, by contacting a rotor or slider to the mechanical oscillator drive source as in the friction drive take out as an output vibration of the mechanical oscillator, the so-called electrostrictive elements is used ing. このような摩擦駆動型の駆動源は、低速であるが高トルクで応答性・制御性に優れ、微小な位置決めが可能、無通電時に保持トルク(または保持力)を有する、静粛性に優れる、小型・軽量であるなどの利点を有している。 A drive source for such friction drive is a slow excellent response and control of a high torque, with a possible fine positioning, holding torque when not energized (or holding power), excellent quietness, It has the advantage of such a small size and light weight.

例えば特許文献2には、レンズ枠に圧電素子を配置し、尺取り虫のようにしてレンズを駆動する光学機器が示され、また、特許文献3には、リニア駆動式振動波アクチュエータ(電歪素子)を用い、電歪素子の当接により、レンズ枠を直接駆動するものなどが提案されている。 For example, Patent Document 2, to place the piezoelectric element to the lens frame, an optical device is shown to drive the lens as described inchworm, Patent Document 3, linear drive type vibration wave actuator (electrostrictive element) using, by the contact of the electrostrictive elements, such as to drive the lens frame directly have been proposed.

さらに、往復運動または伸縮振動をする駆動軸に、スライダを当該駆動軸に沿って移動可能に摩擦係合させ、駆動軸を前後非対称に駆動させることによって、スライダを任意の方向に移動させるリニアアクチュエータが存在し、このようなリニアアクチュエータでは、非駆動状態において駆動軸上をスライダが所定の摩擦力を持って滑らかに動けるようにしておくことが安定な動作のために必要である。 Further, the drive shaft for reciprocating motion or stretching vibration, the slider engaged movably friction along the drive shaft, the drive shaft by driving back and forth asymmetrically, linear actuator for moving the slider in any direction there exists, in such a linear actuator, it is necessary for the stable operation of the upper drive shaft slider keep to move smoothly with a predetermined frictional force in the non-driven state.

しかしながら、こういった電歪素子を用いたリニアアクチュエータや摩擦駆動型の駆動源では、長期間使用したり使用環境によっては、駆動部と被駆動部の当接する部位が摩擦により削れ、削れカスが粉塵としてレンズを汚し、ゴーストやフレアなどを生じたり、硫化水素、NOx、オゾンなどの腐食性ガス及び酸化ガスなどにより生成された腐食物や、塵埃や磨耗分等の付着物が堆積することがある。 However, these linear actuators and friction drive type driving source using electrostrictive element, by long term use or use environment, abutting portions of the driving portion and the driven portion is shaved by friction, is shavings soiled lens as dust may give rise to ghost and flare, hydrogen sulfide, NOx, corrosives and produced by corrosive gas and an oxidizing gas such as ozone, that deposits such as dust and wear amount is deposited is there. また、高温・多湿の環境下においても駆動軸やスライダ材料によっては、材料表面に組成成分が遊離・付着し、スライダ及び駆動軸間の摩擦係合部を汚染する結果、摩擦力を増大させ、スライダが滑らかに動かなくなる場合がある。 Also, depending on the drive shaft and the slider material even in an environment of high temperature and high humidity, the composition components on the surface of the material is liberated or adhere, as a result of contaminating the frictional engagement portion between the slider and the driving shaft, to increase the frictional force, there is a case in which the slider does not move smoothly.

こういった光学系内部の粉塵に対処する方法としては、例えば特許文献4に、粘着剤を光学系内部に施してポリゴンミラーの回転によって飛散する粉塵を捉えたり、粘着テープで光路周辺の開口を閉塞して塵を吸着することが示されている。 As a method of dealing with these optics inside the dust, for example, in Patent Document 4, or capture the dust scattered by the rotation of the polygon mirror is subjected to pressure-sensitive adhesive to the internal optical system, the aperture around the optical path with the adhesive tape closed to have been shown to adsorb dust. また特許文献5、6には、光軸領域外に静電吸着材を用いて塵埃を吸着させるようにしたり、回転多面体鏡軸受に樹脂材料を用いて摩擦により発生する摩耗紛を、摩擦帯電によって軸受部に付着させたりするようにした構造が開示されている。 Also in Patent Document 5 and 6, or so as to adsorb the dust with electrostatic adsorbing material out of the optical axis region, the wear powder generated by friction with the resin material to the rotating polygon mirror bearing, by triboelectrification structure as or to adhere to the bearing portion is disclosed.

特開平7−63970号公報 JP 7-63970 discloses 特開平5−107440号公報 JP-5-107440 discloses 特開平7−104166号公報 JP-7-104166 discloses 特開平6−148550号公報 JP-6-148550 discloses 特開平9−294193号公報 JP-9-294193 discloses 特開平9−127451号公報 JP-9-127451 discloses

しかしながら特許文献2に示された技術は、通常の大きさのカメラレンズを駆動する機構であり、携帯電話などの情報端末に使われるカメラモジュールは常に小型化を要求されているので、こういった情報端末に適用するには大きすぎる。 However in Patent Document 2 technology is a mechanism for driving the normal size of the camera lens, since a camera module used in an information terminal such as a mobile phone is always required miniaturization, saying too large to be applied to an information terminal.

また特許文献4、5に示された技術も、光学系内部に浮遊する塵埃や飛散する異物を吸着するものであって摩擦により削れたカスに対処するものではなく、また特許文献6に示されたものは摩耗紛ではあるが、摩擦帯電によって吸着しているだけなので、回転が止まれば塵として浮遊する可能性があり、根本的な解決策にはなり得ない。 Also in Patent Documents 4 and 5 technique, not address the scraps scraped by friction be one which adsorbs foreign matter dust or scattering floating inside the optical system, also disclosed in Patent Document 6 Although those were is a wear powder, because only adsorbed by frictional charging, it may be suspended as a dust when rotation Stop, not be a fundamental solution.

そのため本発明においては、電歪素子を用いたリニアアクチュエーターを用いてオートフォーカス(AF)機能やズーム機能を組み込み、小型で軽量に構成すると共に電歪素子と被駆動部材が摩擦当接することで生じる削りカスなどにも対処したカメラモジュールおよび該カメラモジュールを搭載した情報端末を提供することが課題である。 In the present invention therefore, caused by incorporating the autofocus (AF) function and a zoom function, the electrostrictive element and the driven member with constituting a small and light frictionally contact with the linear actuator using an electrostrictive element it is an object to provide a cutting information terminal equipped with the camera module and the camera module has been addressed in such Kas.

かかる課題を解決する本発明のカメラモジュールは、電歪素子と、該電歪素子に軸方向の一端側が連結されて、該電歪素子に加えられた電圧によって軸方向に往復運動若しくは伸縮運動する駆動軸と、該駆動軸の周面の少なくとも一部に摩擦係合する摺動部材が連結されたレンズ保持部と、を備えたカメラモジュールであって、前記摺動部材近傍に粘着部材を配設し、前記摺動部材が駆動軸に対面する側の摺動方向に直角な方向に隙間を設け、該隙間に前記粘着部材を配設したことを特徴とする。 The camera module of the present invention to solve the above problems, and electrostrictive elements, electric strain element one end side in the axial direction is coupled to a reciprocating movement or stretching movement in the axial direction by the voltage applied to the power distortion element distribution and drive shaft, a lens holding portion which sliding member is connected to frictionally engage at least a portion of the peripheral surface of the drive shaft, a camera module having a, an adhesive member to the sliding member near was set, the sliding member is provided with a gap in a direction perpendicular to the sliding direction of the side facing the drive shaft, wherein the that the adhesive member is disposed in the gap.

本発明によれば、電歪素子と連動した駆動軸と摺動部材との摺動により生じる削りカスや、腐食性ガスや酸性ガスにより生成される腐食物等の付着物が生じた場合でも、摺動面近傍に配置した粘着部材で捕捉され、粉塵としてレンズを汚したり、ゴーストやフレアなどが生じるのを防止することができる。 According to the present invention, even when the cutting or scum caused by the sliding between the drive shaft and the sliding member in conjunction with the electrostrictive elements, deposits corrosion, etc. that are generated by the corrosive gas and acid gas is generated, are captured by the adhesive member arranged on the sliding surface near or soil the lens as dust, you are possible to prevent the ghost and flare occurs. 従って、長期間の使用においても、駆動軸と摺動部材との摩擦力を安定して適度に維持することができ、リニアアクチュエーターの動作不良を防止することが可能である。 Accordingly, even in long-term use, the frictional force between the drive shaft and the sliding member can be stably maintained properly, it is possible to prevent the malfunction of the linear actuator. さらに、本発明によれば、オートフォーカス(AF)機能やズーム機能を有するカメラモジュールを、小型で軽量に構成できる。 Furthermore, according to the present invention, a camera module having an auto-focus (AF) function and a zoom function can be configured in compact and lightweight.
尚、前記摺動部材近傍とは、該摺動部材のうち駆動軸に対面する側であれば何れの位置でも良く、電歪素子に対面する位置を含む。 Incidentally, the A sliding member vicinity may be at any position as long as the side facing the drive shaft of the sliding member, comprising a position facing the electrostrictive element.
また、前記摺動部材が駆動軸に対面する側の摺動方向に直角な方向に隙間を設け、該隙間に前記粘着部材を配設したことを特徴とする。 Further, the sliding member is provided with a gap in a direction perpendicular to the sliding direction of the side facing the drive shaft, characterized in that arranged the adhesive member in the gap. このように構成することにより、省スペース化が図れ、小型化することができる。 With this structure, space-saving, can be miniaturized.
さらに、前記摺動部材が、前記駆動軸と2箇所で摩擦係合することを特徴とする。 Further, the sliding member, characterized in that frictional engagement with the drive shaft and the two places. このように構成することにより、摺動箇所が分散され、駆動軸への押圧箇所の集中を避けて削りカスの発生を抑え、且つレンズの光軸をより安定させることができる。 With this configuration, the sliding portion is dispersed to suppress the generation of shavings, avoiding the concentration of the pressing portion to the drive shaft, it can be and the optical axis of the lens more stabilized.

また、前記摺動部材のうち前記電歪素子側の端部で且つ前記駆動軸若しくは前記電歪素子周面と対面する側に、集塵部材を配設したことを特徴とする。 Further, on the side facing the and the drive shaft or the electrostrictive element peripheral surface at an end of said electrostrictive element side of the sliding member, characterized in that arranged the dust collecting member. このように電歪素子側端部に集塵部材を配設することにより、粘着部材で捕集しきれない削りカスを効果的に捕集することができる。 This by providing the dust collecting member to the electrostrictive element end so, it is possible to collect the shavings can not be collected by the adhesive member effectively. さらにまた、前記電歪素子側とともに前記摺動部材の逆側端部にも集塵部材を配設することが好ましく、これにより摺動部材の駆動軸方向両端部に集塵部材が設けられ、より効果的な集塵が可能となる。 Furthermore, it is preferable to dispose the dust collecting member to opposite end portions of the sliding member together with the electrostrictive element side, thereby the dust collecting member is provided on the drive shaft opposite ends of the sliding member, thereby enabling more effective dust collection.

また、前記摺動部材の前記駆動軸に当接する面が断面円弧状に形成され、断面円弧状の略円環状に形成された前記隙間に集塵部材を配設したことを特徴とする。 Also, surface contacting to said drive shaft of said sliding member is formed in an arc-shaped cross section, characterized in that arranged the dust collecting member to the gap formed in a substantially annular arcuate section.
このように、摺動部材を円環状ではなく断面円弧状の略円環状に形成することにより、該摺動部材を一方向のみからの付勢により支持することができ、且つ駆動軸への当接性を高く維持することができる。 Thus, by forming the sliding member in a substantially annular arcuate cross section rather than a circular ring, can be supported by the urging from the sliding member in one direction only, and those of the drive shaft it can be maintained high contact resistance.

また、前記摺動部材の隙間が前記駆動軸の軸方向に2箇所以上設けられ、該隙間の少なくとも一箇所に、集塵部材を配設したことを特徴とする。 Further, the gap of the sliding member is provided at two or more locations in the axial direction of the drive shaft, at least one portion of the gap, characterized in that arranged the dust collecting member.
これにより、粘着部材で捕集しきれない削りカスを集塵部材で捕集することが可能となり、付着物捕集性能がより一層向上する。 Thus, the shavings can not be collected by the adhesive member becomes possible to collect in the dust collecting member, deposits collecting performance is further improved.
さらに、前記摺動部材の隙間が、少なくとも前記駆動軸の軸方向両端側に2箇所設けられ、該2箇所の隙間に集塵部材を夫々配設したことを特徴とする。 Further, the gap of the sliding member is provided at two locations in the axial direction end sides of at least the drive shaft, characterized by being respectively disposed dust collecting member in the gap of the two places.
このような構成とすることにより、削りカス等の付着物を効果的に除去することができる。 With such a configuration, it is possible to effectively remove deposits such as shavings. 特に、削りカスが発生し易い駆動軸の上下端部側に集塵部材を配設することにより、削りカスが飛散する前にこれを補足することができる。 In particular, by disposing the dust collecting member to the lower end on the easy drive shaft shavings generated, it is possible to supplement this before shavings scatter.
さらにまた、前記2箇所の間に前記粘着部材を配設したことを特徴とする。 Furthermore, characterized in that arranged the adhesive member between the two positions. これにより、粘着部材の配設スペースを追加せずに、該粘着部材を配設することができる。 Thus, without adding a space for disposing the adhesive member may be provided with a pressure-sensitive adhesive member.

また、前記駆動軸のうち前記摺動部材と当接する箇所の表面を、非当接の表面より粗く処理することを特徴とする。 Further, the sliding member and the surface of the abutting portion of said drive shaft, characterized by processing coarsely than the non-contact surface. さらに、前記駆動軸が、前記摺動部材と該摺動部材の逆側に配設された固定枠とに挟まれて支持されるようにし、前記固定枠側の摺動面における摩擦係数を前記摺動部材側の摺動面における摩擦係数より低く処理したことを特徴とする。 Further, the drive shaft, said sandwiched between the fixed frame disposed on the opposite side of the sliding member and the sliding member to be supported, the friction coefficient at the sliding surface of the fixed frame side wherein the treated lower than the friction coefficient in the sliding surface of the sliding member. さらにまた、前記駆動軸が、前記摺動部材と該摺動部材の逆側に配設された固定枠とに挟まれて支持されるようにし、前記駆動軸のうち前記固定枠に摺動する側の表面に潤滑処理を施し、前記摺動部材に摺動する側の表面に前記潤滑処理を省いたことを特徴とする。 Furthermore, the drive shaft, said sandwiched between the fixed frame disposed on the opposite side of the sliding member and the sliding member to be supported and slides on the fixed frame of the drive shaft subjecting a lubricating treatment on the surface side, characterized in that omitted the lubricating treatment on the surface of the side slides the sliding member. これらの発明によれば、電歪素子による駆動がより効果的に行え、且つ摺動面の摩擦ロスを低減することができる。 According to these aspects of the invention, driving by the electrostrictive element is more effectively performed, and can reduce the friction loss of the sliding surface.

また、前記摺動部材を前記駆動軸に当接する方向に付勢する弾性部材が設けらていることを特徴とする。 Also characterized in that an elastic member for urging the sliding member in abutting direction to the drive shaft are al provided.
これにより、簡単な構成で以って電歪素子に適度な力で不勢力を加えることが可能である。 Thus, it is possible to add non forces at moderate force electrostrictive element I than with a simple configuration.

また、 本発明の情報端末は、電歪素子と、該電歪素子に軸方向の一端側が連結されて、該電歪素子に加えられた電圧によって軸方向に往復運動若しくは伸縮運動する駆動軸と、該駆動軸の周面の少なくとも一部に摩擦係合する摺動部材が連結されたレンズ保持部と、を備えたカメラモジュールであって、前記摺動部材近傍に粘着部材を配設し、前記摺動部材が駆動軸に対面する側の摺動方向に直角な方向に隙間を設け、該隙間に前記粘着部材を配設したカメラモジュールと、操作部材と、表示部材と、バッテリーと、通信部と、前記カメラモジュール、該操作部材、該表示部材、該バッテリー、及び、該通信部を収納すると共に該筐体の厚さ寸法を略前記カメラモジュールの高さ寸法に規制した筐体と、を含むことを特徴とする。 The information terminal of the present invention, electrostrictive elements, is connected to the power magnetostrictive element one end side in the axial direction, and a drive shaft that reciprocates or stretching movement in the axial direction by the voltage applied to the power distortion element , a camera module and a sliding member is a lens holding portion connected to frictionally engage at least a portion of the peripheral surface of the drive shaft, an adhesive member is disposed in the sliding member vicinity a gap in a direction perpendicular to the sliding direction of the side where the sliding member is facing the drive shaft, and a camera module which is disposed to the adhesive member in the gap, and the operating member, a display member, a battery, a communication and parts, the camera module, operating member, said display member, the battery, and a housing which is restricted to a height dimension of approximately the camera module thickness dimension of the housing with housing the communication unit, it characterized in that it comprises a. このようなカメラモジュールを組み込んだ情報端末とすることで、オートフォーカス(AF)機能やズーム機能を有するカメラモジュールを、小型で軽量に構成できる。 By the information terminal incorporating such a camera module, a camera module having an auto-focus (AF) function and a zoom function can be configured in compact and lightweight.

以上記載のごとく本発明によれば、ピエゾ素子に代表される電歪素子を用いてオートフォーカス(AF)機能やズーム機能を組み込み、小型で軽量に構成するととももに、電歪素子に連結された駆動軸と、レンズ保持部に連結された摺動部材とが摩擦当接することで生じる削りカスや、腐食性ガスや酸性ガスにより生じた腐食物等の付着物などにも対処した、カメラモジュールを提供することができる。 According to the present invention as described above, incorporate auto-focus (AF) function and a zoom function using a electrostrictive element typified by a piezo element, when configured in compact and lightweight and the thighs, it is connected to the electrostrictive element a drive shaft and a sliding member connected to a lens holding portion and the shavings caused by the frictional contact, was also addressed, such as fouling corrosion, etc. caused by corrosive gases and acid gases, a camera module it is possible to provide a.

以下、図面を参照して本発明の好適な実施例を例示的に詳しく説明する。 Hereinafter, with reference to the drawings will be exemplified in detail preferred embodiments of the present invention. 但しこの実施例に記載されている構成部品の寸法、材質、形状、その相対的配置等は特に特定的な記載がない限りは、この発明の範囲をそれに限定する趣旨ではなく、単なる説明例に過ぎない。 However the dimensions of the components described in this embodiment, the material, shape, its relative positions and the like unless otherwise specifically noted are not intended to limit the scope of the invention thereto, the mere illustrative examples only.

図1は本実施形態における駆動部分のカメラモジュールの概略断面図、図2は図1のカメラモジュールを被写体側レンズ方向から見た斜視図(A)、撮像素子方向から見た斜視図(B)、図3は本実施形態に係るカメラモジュールの動作説明図で、レンズが最も望遠(テレ)側にある状態(a)、同じく最も広角(ワイド)側にある状態(b)、図4は摺動部材と駆動軸の当接状態を示す図で、側断面図(a)、平断面図(b)、要部断面図(c)、図5は本実施形態に係るカメラモジュールの構造説明図で、左側面図(a)、上面図(b)、右側面図(c)、左下方からの斜視図(d)、右上方からの斜視図(e)、(b)におけるA−A線断面図(f)、同じく(b)におけるB−B線断面図(g)、同じく(b)におけるC−C線断面 Figure 1 is a schematic cross-sectional view of a camera module of the driving part according to the present invention, FIG. 2 is a perspective view seen from the subject side lens direction of the camera module of FIG. 1 (A), a perspective view seen from the imaging element direction (B) FIG 3 is a diagram for describing operation of the camera module according to the present embodiment, the state lens is at the most telephoto side (a), also the most wide-angle state in side (b), FIG. 4 is sliding a diagram showing a contact state of the rotary members and the drive shaft, a side sectional view (a), cross-sectional plan view (b), fragmentary cross-sectional view (c), FIG. 5 is the structure diagram of a camera module according to the embodiment in a left side view (a), top view (b), right side view (c), a perspective view from the lower left (d), perspective view from the upper right (e), a-a line in (b) sectional view (f), also line B-B sectional view in (b) (g), C-C line cross section in also (b) (h)、図6は本実施形態のカメラモジュールの全体構成を示す斜視図(a)、カバーを装着した際の斜視図(b)、図7は本実施形態のカメラモジュールが組み込まれた携帯電話機の一例を概略的に示す図である。 (H), Fig. 6 is a perspective view showing the overall configuration of a camera module of this embodiment (a), a perspective view when mounting the cover (b), FIG. 7 is a mobile camera module of this embodiment is incorporated an example of a telephone is a diagram schematically showing. 図中、同一構成要素には同一番号が付してある。 In the figure, the same components are denoted by the same numbers.

まず、図1及び図2を参照して、本実施形態に係るカメラモジュール1の主要概略構成につき説明する。 First, with reference to FIGS. 1 and 2, it will be described main schematic configuration of a camera module 1 according to this embodiment. 同図に示されるように、本実施形態のカメラモジュール1は、撮像レンズを保持するレンズ保持枠2と、軸方向に往復運動若しくは伸縮運動する駆動軸9と、前記レンズ保持枠2に連結され前記駆動軸9に沿って摩擦係合する摺動部材5と、前記駆動軸9に連結されレンズ保持枠2の位置決めをする電歪素子8と、前記駆動軸9とは他端側の電歪素子に連結される安定重量部材3と、該安定重量部材3に連結され駆動軸9の移動を規制する固定枠4と、前記摺動部材5を駆動軸9に付勢するばね部材7と、該ばね部材7を支持するばね受け6と、を主要構成とする。 As shown in the figure, the camera module 1 of this embodiment includes a lens holding frame 2 for holding the imaging lens, a drive shaft 9 which reciprocates or stretching movement in the axial direction, is connected to the lens holding frame 2 a sliding member 5 for frictional engagement along the drive shaft 9, the electrostrictive element 8 to position the coupled lens holding frame 2 to the drive shaft 9, the drive shaft 9 and electrostrictive the other end a stable weight member 3 which is coupled to the element, the fixed frame 4 which is connected to said stable weight member 3 restricts the movement of the drive shaft 9, the spring member 7 for urging the slide member 5 to the drive shaft 9, a spring bearing 6 for supporting the spring member 7, and the main structure.

レンズ保持枠2を駆動制御するリニアアクチュエータは、安定重量部材3、電歪素子8、駆動軸9の順に構成される。 Linear actuator that drives and controls the lens holding frame 2, stable weight member 3, electrostrictive element 8, constituted in the order of the drive shaft 9. 前記安定重量部材3は、振動による反発を吸収するため、重量が大きくならず、カメラモジュール構成部品への影響及びカメラモジュール構成部品からの影響を極力小さくするために柔軟性の高い(固有振動数の低い)接合部材により固定されている。 Said stable weight member 3, in order to absorb the rebound due to vibration, not the weight is large, flexible to the influence from the effects and camera module components to the camera module components as small as possible (natural frequency It is fixed by the lower) bonding member. 電歪素子3は、積層型で電圧を印加することにより光軸と平行方向に伸縮駆動する素子で、ピエゾ素子に代表される。 Electrostrictive element 3 is an element to expand and contract driven parallel to the optical axis direction by applying a voltage multilayer typified by a piezo element. 駆動軸9は、電歪素子8に押圧固定、若しくは接合剤による固定などによって接合されており、該電歪素子8と連動して光軸と平行方向に伸縮駆動する。 Drive shaft 9 is pressed and fixed to the electrostrictive element 8, or are joined and fixed by such as by bonding agent, in conjunction with electric strain element 8 to stretch driven in a direction parallel to the optical axis. 該駆動軸9は、固定枠4の摺動面4aと、レンズ枠保持部2に連結された摺動部材5の摺動面5aとに挟まれており、該摺動部材5とばね受け6の間には摺動面加圧用のばね部材7が配されている。 The drive shaft 9, the sliding surface 4a of the stationary frame 4 is sandwiched between the sliding surface 5a of the sliding member 5 connected to the lens frame holding unit 2, the sliding member 5 and the spring receiver 6 the spring member 7 of the sliding surface pressurization is arranged between the. 尚、ばね部材としては、スプリングの他に降伏点を超えない板ばね、プラスチックばね、粘性高分子材料等の弾性部材を用いることができる。 As the spring member, it is possible to use leaf springs which do not exceed the addition to the yield point of the spring, a plastic spring, a resilient member of the viscous polymeric materials. 即ち、前記摺動部材5は、ばね部材7により駆動軸9に押圧され、支持されている。 That is, the sliding member 5 is pressed to the drive shaft 9 by a spring member 7, is supported.
また、ばね部材7の荷重は、駆動軸9と摺動部材5の摩擦より十分に小さいながらも、レンズの光軸を安定させるのに十分なものとする。 Further, the load of the spring member 7, while much smaller than the friction of the drive shaft 9 and the sliding member 5 shall be sufficient even the optical axis of the lens to stabilize.

本実施形態におけるレンズ保持枠2の駆動機構は、電歪素子8の急峻な体積変化と、移動体である駆動軸9の慣性と摩擦力を利用することにより、小型で高精度の駆動を可能とし、レンズの位置決めを精密に行うことを可能としている。 Driving mechanism of the lens holding frame 2 in this embodiment is possible with steep volume change electrostrictive element 8, by utilizing the inertia and friction force of the drive shaft 9 which is a moving body, the highly accurate driving in a small and then, it is made possible to precisely positioning the lens.
電歪素子によるレンズの移動動作の駆動原理は、以下のようになる。 The driving principle of the movement operation of the lens by the electrostrictive element is as follows.
電歪素子8が急速に伸びた場合に、該電歪素子8に連結された駆動軸9は同時に急速に移動し、駆動軸9の周面と、レンズ保持枠2に連結された摺動部材5の摺動面5aが滑って、レンズ保持枠2自体は略その位置にとどまり、駆動軸9のみが移動する。 When the electrostrictive element 8 is rapidly increased, the drive shaft 9 connected to the power distortion element 8 rapidly move simultaneously, and the peripheral surface of the drive shaft 9, a sliding member connected to the lens holding frame 2 5 sliding surface 5a is slipped in, the lens holding frame 2 itself is substantially remains in its position, only the drive shaft 9 is moved. その後電歪素子8をゆっくり縮ませると、駆動軸9の周面と摺動部材5の摺動面5aの面摩擦により摺動部材5がレンズ保持枠2を伴ってZ軸+方向(図1参照)に動く。 When the slow contracting subsequent electrostrictive element 8, the peripheral surface and the sliding member 5 by a surface friction of the sliding surface 5a of the sliding member 5 with the lens holding frame 2 Z-axis + direction of the drive shaft 9 (Fig. 1 move to the reference). この伸縮動作を繰り返すことによってレンズ保持枠2はZ軸+方向に変位する。 Lens holding frame 2 by repeating the stretching operation is displaced in the Z-axis positive direction. 同様に、電歪素子8をゆっくり伸ばした後に急速に縮ませると、レンズ保持枠2は逆にZ軸−方向(図1参照)に進む。 Similarly, when the shrink rapidly after stretched slowly electrostrictive element 8, the lens holding frame 2 is Z-axis reversed - traveling in the direction (see FIG. 1). このとき、電歪素子8を変位させるためには、図5、6に示した回路基盤13によって電歪素子8に矩形波若しくはノコギリ波状の非対称の電圧波形を入力して制御する。 At this time, in order to displace the electrostrictive element 8 controls to input voltage waveform of the rectangular wave or sawtooth wave-like asymmetric electrostrictive element 8 by circuit board 13 shown in FIGS.

具体的には、例えば立ち下がり時間が立ち上がり時間より少なくとも4倍程度長い非対称の電圧パルスを電歪素子8に印加すると、駆動軸9の周面と摺動部材5の摺動面5aの摩擦によってパルスの立ち下がり時に駆動軸9と摺動部材5が係合したまま出発位置に戻り、そのためパルスの立ち上がり時の変位分、駆動軸9と摺動部材5が相対的に移動する。 Specifically, for example, at least about four times than fall time rise time longer voltage pulse asymmetry is applied to the electrostrictive element 8, by the friction of the sliding surface 5a of the peripheral surface and the sliding member 5 of the drive shaft 9 return to the starting position while the drive shaft 9 and the sliding member 5 is engaged at the time of the fall of the pulse, therefore the displacement amount at the time of the rise of the pulse, the drive shaft 9 and the sliding member 5 is moved relatively. また、上記電圧を逆にかけると、この電歪素子8は逆の方に変形し、従って、駆動軸9と摺動部材5は相対的に逆の方向に移動する。 Further, when applying the voltage to the contrary, the electrostrictive element 8 is deformed toward the opposite, therefore, the drive shaft 9 and the sliding member 5 is moved in the direction of the relatively opposite. このとき、ばね受け6、安定重量部材3、固定枠4は固定され、ばね部材7の駆動軸側先端のみが−方向に向く。 At this time, the spring holder 6, stable weight member 3, the fixed frame 4 is fixed, only the drive shaft side tip of the spring member 7 - faces the direction.

図3(a)に、レンズ保持枠2がZ軸−方向に最も変位した状態を示し、図6(b)にレンズ保持枠2がZ軸+方向に最も変位した状態を示す。 In FIG. 3 (a), the lens holding frame 2 is Z-axis - shows the most displaced state in the direction, showing a state in which the lens holding frame 2 is most displaced in the Z-axis + direction in Figure 6 (b). レンズ保持枠2の変位幅は、駆動軸9の長さにより自在に設定可能である。 Displacement range of the lens holding frame 2 can be freely set by the length of the drive shaft 9. また、駆動軸9に基づき設定される変位幅の範囲内であれば、リニアアクチュエータの制御によりレンズ保持枠2は微小移動が可能となる。 Further, as long as it is within the range of the displacement width is set based on the drive shaft 9, the lens holding frame 2 by the control of the linear actuator becomes possible minute movement.

このように電歪素子は、連続的に変形が生じるような信号電圧を与えることで、駆動軸9とレンズ保持枠2の摺動部材5の間の面摩擦によって相対的な位置を変位させていくため、応答性、制御性に優れた微小な位置決めが可能で、無通電時に保持トルク(または保持力)を有する、静粛性に優れる、小型・軽量であるなどの利点を有する駆動源となる。 Thus electrostrictive element, by applying a signal voltage that continuously deformation, by displacing the relative position by the surface friction between the sliding member 5 of the drive shaft 9 and the lens holding frame 2 go therefore, possible response, controllability excellent fine positioning, has a holding torque when not energized (or holding power), excellent quietness, the driving source has advantages such a small and light .

以上が本実施形態のカメラモジュール1における電歪素子8の動作原理であるが、続いて本実施形態のカメラモジュールの構成につき、図4、5を用いてを更に詳細に説明する。 Above is the operation principle of the electrostrictive element 8 in the camera module 1 of this embodiment, followed by the camera module of the present embodiment configured per further illustrate the using FIGS.

図4は摺動部材と駆動軸の当接状態を示す図であり、図4(a)の側断面図に示されるように、前記摺動部材5は、駆動軸9に対面する側に凹状の隙間11を3箇所有しており、夫々の隙間は、駆動軸9の軸方向に対して、摺動部材5の最上端に一箇所、最下端に一箇所、さらに該最上端と最下端の間の中間部に一箇所設けられ、これらの隙間は軸方向に所定距離だけ離間させて設けられている。 Figure 4 is a diagram showing a contact state of the drive shaft and the sliding member, as shown in the side sectional view of FIG. 4 (a), the sliding member 5 is concave on the side facing the drive shaft 9 has a gap 11 three, the gap respectively, with respect to the axial direction of the drive shaft 9, one location at the uppermost end of the sliding member 5, one position at the lowermost end, further outermost upper and lowermost provided one position in an intermediate portion between, the gaps are provided by axially spaced by a predetermined distance. 図4(c)の要部断面図に示されるように、前記隙間11は半円環状に形成される。 As shown in fragmentary cross-sectional view of FIG. 4 (c), the gap 11 is formed in a semicircular ring.
最上部及び最下部に位置する隙間には、図4(b)の平断面図に示されるように、断面扇形状の集塵部材10が設けられる。 The gap to be at the top and bottom, as shown in cross-sectional plan view of FIG. 4 (b), the cross-section fan-shaped dust collecting member 10 is provided. 集塵部材10の摺動負荷は、摺動部材5の摩擦より十分小さく、且つ削りカスを集塵するのに十分な荷重のものであればよい。 Sliding load of the dust collecting member 10 may be any of sufficient load to the dust collecting a sufficiently small, and shavings than the friction of the sliding member 5. また、好適には摺動部材5の中間に位置する隙間に、粘着部材11を設ける。 Also, preferably the gap is located between the slide member 5, providing an adhesive member 11.

摺動部材5のうち駆動軸9と摺動する面は、隙間を除く2箇所の摺動面5aとなり、従って、摺動部材5側は、駆動軸の軸方向に対して、集塵部材10、摺動面5a、粘着部材11、摺動部5a、集塵部材10の順で配置され、夫々の軸方向厚みは略同等となるようにする。 Sliding surfaces and the drive shaft 9 of the sliding member 5, next to the sliding face 5a of the two positions, except for the gap, therefore, the sliding member 5 side, with respect to the axial direction of the drive shaft, the dust collecting member 10 , sliding surfaces 5a, the adhesive member 11, the sliding portion 5a, they are arranged in the order of the dust collecting member 10, the axial thickness of each is set to be substantially equal. このように、摺動部材5を摺動面に対して断面上広くとることで、削りカス等の飛散を抑えるようになる。 In this way, by taking the cross-sectional widening the sliding member 5 relative to the sliding surface, so that suppressing the scattering of such shavings.
さらに他の部材の摺動面としては、集塵部材10の略半円環状の内側円弧に相当する内周面と、固定枠4の摺動部4aとが駆動軸との摺動面となる。 Still sliding surface of another member, an inner peripheral surface corresponding to the inner arc of the semicircular annular dust collecting member 10, and the sliding portion 4a of the stationary frame 4 becomes the sliding surface of the drive shaft . このとき、摺動性向上、削りカス低減のために固定枠4との摩擦は小さく、駆動ロス低減のために摺動部材5との摩擦はある程度あった方が良い。 At this time, sliding improvement, small friction between scraping the fixed frame 4 for Kas reducing the friction between the sliding member 5 for driving loss reduction is better there to some extent. 具体例として、前記駆動軸9のうち摺動部材5と当接する箇所の表面を、非当接の表面より粗く処理すると良い。 As a specific example, the sliding member 5 of the drive shaft 9 of the surface of the abutting portion, may be processed rougher than the non-contact surface. また、前記駆動軸9が、固定枠4側の摺動面4aにおける摩擦係数を摺動部材5側の摺動面5aにおける摩擦係数より低く処理することも好適である。 The driving shaft 9, it is also preferable to process lower than the frictional coefficient of the friction coefficient in the sliding member 5 side sliding surface 5a in the sliding surface 4a of the fixed frame 4 side. 例えば、フッ素配合のポリカーボネートやPPSなどを用いて低摩擦とした樹脂材料で駆動軸9を形成したり、摺動面4aをコートしたりすれば良い。 For example, polycarbonate or PPS fluorine compounded in a resin material and low friction with or form a drive shaft 9 may be or coated with the sliding surface 4a. さらにまた、前記駆動軸9のうち、固定枠4の摺動面4aに摺動する側の表面に潤滑処理を施し、摺動部材5の摺動面5aに摺動する側の表面では前記潤滑処理を省くことも好適である。 Furthermore, among the drive shaft 9, subjected to a lubricating treatment on the surface of the side that slide on the sliding surface 4a of the stationary frame 4, the lubricant at the surface of the side that slide on the sliding surface 5a of the sliding member 5 it is also preferable to omit the process.

尚、本実施形態では、駆動軸の軸方向に対して3箇所の隙間を設け、最上部及び最下部の2箇所に集塵部材10を設け、摺動部材5が駆動軸9と2箇所で摩擦係合する構成とし、これにより、摺動箇所が分散されて削りカスの発生を抑え、且つレンズの光軸をより安定させることができる。 In the present embodiment, a gap of three with respect to the axial direction of the drive shaft, the dust collecting member 10 provided at two places of the top and bottom, in two places sliding member 5 and the drive shaft 9 it is configured to be frictionally engaged, thereby suppressing the generation of shavings are sliding portion is dispersed, can be and the optical axis of the lens more stabilized. また、2箇所の集塵部材10の間に粘着部材11を配設しており、これにより粘着部材11の配設スペースを別に追加せずに該粘着部材11を配設できる。 Moreover, by disposing the adhesive material 11 between the dust collecting member 10 at two positions, thereby providing the pressure-sensitive adhesive member 11 a space for disposing the adhesive member 11 without adding separately.

本実施例のカメラモジュールは上記構成に限定されるものではなく、前記摺動部材5近傍に粘着部材11を配設すれば何れの構成であっても良く、これにより、駆動軸9と摺動部材5との摺動により生じる削りカスや、腐食性ガスや酸性ガスにより生成される腐食物等の付着物が生じた場合でも、摺動面近傍に配置した粘着部材11で捕捉され、粉塵としてレンズを汚したり、ゴーストやフレアなどが生じるのを防止することができ、延いては長期間の使用においても、駆動軸と摺動部材との摩擦力を安定して適度に維持することができ、リニアアクチュエーターの動作不良を防止することが可能である。 The camera module of this embodiment is not limited to the above configuration may be any configuration if provided an adhesive member 11 on the sliding member 5 near, thereby, the drive shaft 9 and sliding cutting and debris caused by the sliding of the member 5, even when the deposit corrosion, etc. that are generated by the corrosive gas and acid gas is generated, is captured by the adhesive member 11 disposed near the sliding surface, as dust or soil the lens, it is possible to prevent the ghost and flare occurs, even in its turn long-term use can be stably maintained properly frictional force between the drive shaft and the sliding member , it is possible to prevent the malfunction of the linear actuator. さらに、本実施例によれば、オートフォーカス(AF)機能やズーム機能を有するカメラモジュールを、小型で軽量に構成できる。 Further, according to this embodiment, a camera module having an auto-focus (AF) function and a zoom function can be configured in compact and lightweight.
尚、前記摺動部材近傍とは、摺動部材5のうち駆動軸9に対面する側であれば何れの位置でも良く、電歪素子8に対面する位置を含む。 Incidentally, the A sliding member vicinity may be at any position as long as the side facing the drive shaft 9 of the sliding member 5, including a position facing the electrostrictive element 8. 例えば、摺動部材5の面上に粘着部材11を載置、固着してもよい。 For example, an adhesive member 11 on the surface of the sliding member 5 mounted, may be fixed.
また、摺動部材5が駆動軸9に対面する側の摺動方向に直角な方向に隙間を設け、前記隙間に粘着部材11を配設することで、省スペース化が図れ、小型化することができる。 Further, a gap in a direction perpendicular to the sliding direction of the side where the sliding member 5 faces the drive shaft 9, by disposing the adhesive member 11 in the gap, space-saving, reducing the size of can.

さらに、摺動部材5の駆動軸9に当接する面が断面円弧状に形成され、前記隙間に粘着部材11を配設することにより、該摺動部材5を一方向のみからの付勢により支持することができ、且つ駆動軸9への当接性を高く維持することができる。 Further support abutting surface is formed in a circular arc cross sectional shape to the drive shaft 9 of the sliding member 5, by disposing the adhesive member 11 in the gap, by the urging from the sliding member 5 in one direction only it can be, can be and to maintain a high contact resistance to the drive shaft 9. このとき、前記隙間に配設する集塵部材10を、同様に断面円弧状とすることが好ましく、これにより摺動部材5と駆動軸9の摺動面で発生した削りカスを確実に捕集することが可能となり、集塵性能が向上する。 In this case, the dust collecting member 10 disposed in the gap, similarly it is preferable that the arc-shaped cross section, thereby reliably collected to the cutting debris generated in the sliding surface of the drive shaft 9 and the sliding member 5 it becomes possible to improve the dust collection performance can be.
また、摺動部材5のうち電歪素子8側の端部で且つ駆動軸9若しくは電歪素子8周面と対面する側に、集塵部材10を配設することが好ましい。 Further, on the side facing the and the drive shaft 9 or the electrostrictive element 8 peripheral surface at an end of the electrostrictive element 8 side of the sliding member 5, it is preferable to dispose the dust collector 10. 該集塵部材10の配置は、摺動部材5のうち駆動軸9若しくは電歪素子8と対面する側に隙間を設けて、該集塵部材10をこの隙間内に配設しても良いし、また摺動部材5の摺動方向端側で且つ駆動軸9若しくは電歪素子8に当接する側に付設しても良い。 Arrangement of the dust collecting member 10 is provided with a gap on the side facing the drive shaft 9 or the electrostrictive element 8 out of the sliding member 5, it may be disposed a dust collecting member 10 within the gap , or it may be attached to the side abutting on and the drive shaft 9 or the electrostrictive element 8 in the sliding direction end side of the sliding member 5. このように電歪素子側端部に集塵部材10を配設することにより、粘着部材11で捕集しきれない削りカスを効果的に捕集することができる。 By thus disposing the dust collecting member 10 on the electrostrictive element side end portion, it is possible to effectively collect the shavings can not be collected by the adhesive member 11. さらにまた、電歪素子8側とともに摺動部材5の逆側端部にも集塵部材10を配設することが好ましく、これにより摺動部材5の駆動軸方向両端部に集塵部材10が設けられ、より効果的な集塵が可能となる。 Furthermore, it is preferable to dispose the dust collecting member 10 to opposite ends of the slide member 5 with electrostrictive element 8 side, thereby the dust collecting member 10 to the drive shaft opposite ends of the slide member 5 provided, thereby enabling more effective dust collection.

なお、前記集塵部材10としては、低反発、低負荷で経年変化が少なく、空気層の多い材料を選択し、駆動軸9に当接しながら削りカスを捕集、保持できる部材であればよい。 Incidentally, as the dust collecting member 10, foam less aging at low load, and select the lot of air layer material, the shavings while in contact with the drive shaft 9 collection, may be any member capable of holding . 例えば、スポンジ状部材等の発泡体もしくは繊維状体のように、部材内に多数の微小空隙を有し、この微小空隙により削りカスを捕集、保持する構造であればよい。 For example, as in the foam or fibrous material such as a sponge-like member has a large number of fine voids in the member, the shavings The microvoid collection, may be a structure that holds. また、材料としては、モケット、スポンジ、またはウレタンなどの発泡性高分子材料であればよい。 As the material, moquette, may be a foamed polymer material such as sponge or urethane. あるいは、駆動軸9に対向する面に植毛紙、植毛布、若しくはベースに直接植毛を塗布するようにしてもよい。 Alternatively, they flocked paper on a surface facing the drive shaft 9, flocked, or base may be directly planted as applied.

また、摺動部材10の隙間が駆動軸9の軸方向に2箇所以上設けられ、該隙間の少なくとも一箇所に、集塵部材10を配設することにより、粘着部材11で捕集しきれない削りカスを集塵部材10で捕集することが可能となり、集塵性能がより一層向上する。 Further, the gap of the sliding member 10 is provided at two or more locations in the axial direction of the drive shaft 9, the at least one portion of the gap, by providing a dust collecting member 10, can not be collected by the adhesive member 11 possible to collect shavings in the dust collecting member 10 and become dust collecting performance is further improved.
さらに、摺動部材5の隙間が、少なくとも駆動軸9の軸方向両端側に2箇所設けられ、該2箇所の隙間に集塵部材10が夫々配設されるようにする。 Further, the gap of the sliding member 5 is provided at two locations in the axial direction end sides of at least the drive shaft 9, the dust collecting member 10 in the gap of the two locations to be respectively disposed. このように削りカスが発生し易い駆動軸の上下端部側に集塵部材10を配設することにより、削りカスが飛散する前にこれを補足することができる。 By arranging the dust collecting member 10 to the lower end on the easy drive shaft shavings generated in this manner, it is possible to supplement this before shavings scatter.
さらにまた、前記2箇所の間に前記粘着部材を配設すると良い。 Furthermore, it is preferable to dispose the pressure-sensitive member between the two positions. これにより、粘着部材11の配設スペースを追加せずに、該粘着部材11を配設することができる。 Thus, without adding a space for disposing the adhesive member 11 may be provided with a pressure sensitive member 11.
なお、前記粘着部材11としては、駆動軸に当接せずに削りカス、浮遊ゴミを表面に付着させる部材であればよく、経年変化の少ないアクリル系、高重量に用いられるゴム系、あるいは耐熱使用に有用なシリコン系などを用いればよいが、安価で、化学的に安定、かつ構造の経年変化のないアクリル系粘着材が適している。 Incidentally, as the adhesive member 11, shavings without contact to the drive shaft, the floating dust may be a member to be attached to the surface, aging less acrylic, rubber-based used heavy or heat, or the like may be used useful silicon to use, inexpensive, chemically stable, and no aging of structural acrylic adhesive is suitable.

本実施例における電歪素子8と駆動軸9からなる駆動制御手段は、摩擦駆動型であるため、駆動軸表面と摺動部材5の摺動部5a及び固定枠4の摺動部4aとが当接することで削れカスが生じ、その削れカスが粉塵としてレンズを汚してゴーストやフレアなどを生じたり、腐食性ガスや酸性ガスにより生成される腐食物等の付着物が生じることがある。 Drive control means for the electrostrictive element 8 in this embodiment consists of the drive shaft 9 are the friction drive, and the sliding portion 4a of the sliding portion 5a and the fixed frame 4 of the drive shaft surface and the sliding member 5 is shavings occurs by contact, the scraping or cause ghost or flare scum soil the lens as dust may deposit corrosion, etc. that are generated by the corrosive gas and acid gas occurs. 前記粘着部材11はこの付着物を回収し、飛散するのを防止するために設けられる。 The adhesive member 11 is recovering the deposit, is provided to prevent the scattering.
本実施形態では、一例として、軸方向中央付近に1箇所設けたスペース11に粘着部材を配置している。 In the present embodiment, as an example, it is arranged an adhesive member in the space 11 provided one location in the vicinity of the axial center. さらに、摺動部材5の軸方向上方と下方に2箇所設けたスペースに集塵部材10を配置している。 Further arranged the dust collecting member 10 upward in the axial direction and two positions provided space below the slide member 5. このように、削りカスが生じる近傍に集塵部材10、粘着部材を配置することで、削りカスは集塵部材10に集められるとともに、粘着部材11に付着して、飛散を効果的に防止することができる。 Thus, scraping dust collecting member 10 in the vicinity of the scum occurs, by disposing the adhesive material, scraping with scum is collected in the dust collecting member 10, attached to the adhesive member 11, to effectively prevent the scattering be able to.
また、こういった生じた削りカスを集めるだけでなく、削りカスを出さないようにすることも重要であり、上述したように駆動軸9と固定枠4の摺動部4aが当接する箇所の表面を滑らかに、駆動軸9と摺動部材5の摺動面5aが当接する表面をより荒く処理することで、集塵部材10や粘着部材11が設けられていない方には削りカスが生じないようにすると良い。 In addition to collecting the shavings generated saying, cutting it is also important to avoid out debris, the sliding portion 4a of the stationary frame 4 and the drive shaft 9 as described above places abuts smooth surface, the sliding surface 5a of the drive shaft 9 and the sliding member 5 that is processed more rougher the contacting surfaces, scum occurs sharpener towards the dust catcher 10 and the adhesive member 11 is not provided it may be as to not.

以上、図1乃至図4に示したカメラモジュールの実施形態は、単一のレンズ保持部2を駆動するための構成であり、このようなカメラモジュールを例えばズームレンズを構成する複数のレンズのそれぞれに対応させて用意し、焦点距離に応じてレンズを所定位置に駆動することで、ズーミングとピント合わせを同時に行えるカメラモジュールを構成することが可能である。 Above, the embodiment of the camera module shown in FIGS. 1 to 4 is a structure for driving the single lens holder 2, each of the plurality of lenses constituting such a camera module for example a zoom lens prepared in correspondence with, by driving the lens in accordance with the focal length in a predetermined position, it is possible to construct a camera module capable of performing zooming and focusing simultaneously.

また、本発明のカメラモジュールを、単焦点のカメラモジュールとしてレンズの焦点位置にCCDなどの撮像素子を用意すれば、オートフォーカス機能を備えた例えばカメラ機能付き携帯電話等の情報端末や監視カメラなどに応用することが可能である。 Also, the camera module of the present invention, the focal position of the lens as a camera module monofocal by preparing an imaging element such as CCD, autofocus functions with the example of the portable telephone with a camera function information terminals and surveillance cameras, etc. it can be applied to.

この場合の実施形態を示したのが図5、図6である。 Shown embodiments of this case is 5, a diagram 6. この図5、図6に示したカメラモジュールは、以上説明してきたカメラモジュールをCCD等の撮像素子と組み合わせ、単焦点の独立したカメラモジュールとして構成した一例の構造説明図であり、図5(a)は左側面図、(b)は上面図、(c)は右側面図、(d)は左下方からの斜視図、(e)は右上方からの斜視図、(f)は(b)におけるA−A線断面図、同じく(g)は(b)におけるB−B線断面図、同じく(h)は(b)におけるC−C線断面図である。 FIG 5, a camera module shown in FIG. 6, or the image pickup device and a combination of a CCD camera module has been described, an independent structure example illustration of configured as a camera module of monofocal, FIG. 5 (a ) is a left side view, (b) top view, (c) in the right side view is, (d) is a perspective view from the lower left, (e) is a perspective view from the right upper, (f) is (b) a-a line cross-sectional view taken along, also (g) are sectional view taken along line B-B in (b), also (h) is a sectional view taken along line C-C in (b).

また、図6(A)は、上記した撮像用レンズやレンズ移動機構、各種電装部品を組み込んで調整を行ったカメラモジュール1で、図6(B)は、このカメラモジュール1にカバー14を被せた図である。 Further, 6 (A) is the above-mentioned imaging lens, a lens moving mechanism, an adjustment incorporate various electrical components in the camera module 1 was performed, FIG. 6 (B) covered with a cover 14 to the camera module 1 It was a diagram.

この図5、図6において、前記した図1乃至図4の構成要素と同一の構成要素には同一番号が付してあるので説明を省略する。 FIG 5 is omitted in FIG. 6, the description since the same components as those of FIGS. 4 and the are denoted by the same numbers. 図中13はCCD等の撮像素子を搭載した基板、14はカメラモジュールのカバー、15はレンズの露出部、16はこのカメラモジュールを搭載する携帯機器などとの電気的接続を行う連絡フレキシブルプリンタ基盤(FPC)、17はレンズ保持枠2の位置を検出するためのホール素子、18はホール素子17のためのマグネット、19はCCD等の撮像素子20を保護するためのフィルタ、21はホール素子17などの保持用案内軸である。 Substrate figure 13 is equipped with an image pickup element such as a CCD, the cover of the camera module 14, 15 exposed portion of the lens, 16 to contact the flexible printer platform to electrical connection between such portable device equipped with this camera module (FPC), a Hall element for detecting the position of the lens holding frame 217, 18 magnets for the Hall element 17, a filter for protecting the imaging device 20 such as a CCD 19, 21 Hall element 17 it is a guide shaft for the retention of such.

この図5、図6に示したカメラモジュールは、前記図1乃至図4で説明したカメラモジュールにおける固定枠4を、図5(g)に示したように基板13上に設けた基体22に固定し、さらにレンズ保持枠2に固定したホール素子17とマグネット18を移動させるための軸21を、図5(h)に示したように、同様に基体22に固定して安定重量部材3のガイドをも兼ねさせている。 FIG 5, a camera module shown in FIG. 6, fixed to the fixed frame 4 in the camera module described in FIG. 1 to FIG. 4, the substrate 22 provided on the substrate 13 as shown in FIG. 5 (g) and, the shaft 21 for further movement of the Hall element 17 and the magnet 18 fixed to the lens holding frame 2, 5 as shown in (h), similarly fixed to the base 22 of the stable weight member 3 guides but also serve as the.

そして図5(f)の断面図に示したように、基体22の内部にCCDなどの撮像素子20とフィルタ19を収容し、全体をカバーで覆って図6に示したようなカメラモジュールとしたものである。 Then, as shown in the sectional view of FIG. 5 (f), the housing the image pickup element 20 and the filter 19 such as a CCD in the interior of substrate 22, and a camera module shown in FIG. 6 to cover the whole cover it is intended.

このようにカメラモジュールを構成することにより、前記図1乃至図4で説明したようにレンズ保持枠2は電歪素子8によって駆動することができ、また、ホール素子17とマグネット18によってそのレンズ保持枠2の現在位置を正確に検出することが可能であるから、単焦点とはいえ、非常に小型で、焦点合わせをスピーディに、正確に行えるカメラモジュールを提供することができる。 By thus configuring the camera module, FIG. 1 to the lens holding frame 2 as described in FIG. 4 can be driven by the electrostrictive element 8, also the lens held by the Hall element 17 and the magnet 18 since it is possible to accurately detect the current position of the frame 2, although the single focus, is very compact, speedy focusing, it is possible to provide a camera module that enables accurate.

図7は、以上説明してきたカメラモジュール1を組み込んだ情報端末の一例である。 Figure 7 is an example of the information terminal incorporating the camera module 1 described above. この図7に示した情報端末は、一例として携帯電話機50の場合を示している。 This information terminal shown in FIG. 7 shows the case of the cellular phone 50 as an example. 図中51は操作部(操作部材)、52はディスプレイ(表示部材)で、この図7はこれら操作部(操作部材)51、ディスプレイ(表示部材)52が見える状態(開状態)で示した平面図であり、図示の携帯電話機50は、操作部51が搭載された第1のケース部53とディスプレイ52が搭載された第2のケース部54とがヒンジ機構55によって連結され、第1及び第2のケース部53及び54は、ヒンジ機構55の回りに回動可能となっている。 Figure 51 is an operation unit (operation member) 52 is a display with (display member), Fig. 7 these operating portion (operating member) 51, a plane indicated by the display (display member) 52 is visible state (open state) a diagram, the mobile phone 50 illustrated, the second case portion 54 are connected by a hinge mechanism 55 first case portion 53 and the display 52 by the operation unit 51 is mounted is mounted, the first and second the second case portions 53 and 54, and can rotate around the hinge mechanism 55. なお、第1及び第2のケース部53及び54はケース体を構成する。 Note that the first and second casing portions 53 and 54 constituting the case body.

第2のケース54には、図中破線二重丸で示すように、前述したカメラモジュール1が組み込まれており、操作部51の所定のボタンを操作すると、カメラモジュール1によって撮像が行われ、撮像された画像は、例えば、ディスプレイ52上に表示される。 The second case 54, as shown by a broken line double circle in the drawing, incorporates the camera module 1 described above, and operates a predetermined button of the operation unit 51, the imaging is performed by the camera module 1, the captured image, for example, is displayed on the display 52. なお、カメラモジュール1は、図1に示す上側が第2のケース部54の外側に向けられている。 The camera module 1, the upper shown in FIG. 1 are directed to the outside of the second case portion 54. つまり、第2のケース部54には、カメラモジュール1における第3レンズ保持部20に保持された第1のレンズ群2を露出させる開口部が形成され、また、図示はしないが、第1のケース部53にはバッテリー及び通信部等が収納されており、さらに、第2のケース部54の厚さ寸法は、略カメラモジュール1の高さに規制されている。 That is, the second case portion 54, an opening exposing the first lens group 2 held on the third lens holding unit 20 in the camera module 1 is formed, also, although not shown, the first the case portion 53 has a battery and a communication unit or the like are housed, further, the thickness of the second casing portion 54 is restricted to a height of approximately camera module 1.

以上種々述べてきたように本実施形態によれば、オートフォーカス(AF)機能やズーム機能を組み込んだ、小型で軽量に構成できるカメラモジュール及びこのカメラモジュールを備えた情報端末を提供することができる。 According to the present embodiment as has been variously described above, it is possible to provide incorporating an auto-focus (AF) function and a zoom function, the information terminal with a camera module and the camera module can be configured small and light .

オートフォーカス(AF)機能やズーム機能を組み込んだカメラモジュールを、小型で軽量に構成することが可能となり、各種の小型情報端末におけるカメラモジュールとして最適である。 The auto-focus camera module incorporating a (AF) function and a zoom function, compact, it is possible to configure the light, is optimal as a camera module in a variety of small information terminals.

本実施形態における駆動部分のカメラモジュールの概略断面図である。 It is a schematic cross-sectional view of a camera module of the driving portion in this embodiment. 図1のカメラモジュールを被写体側レンズ方向から見た斜視図(A)、撮像素子方向から見た斜視図(B)である。 Perspective view from the object-side lens direction of the camera module of FIG. 1 (A), is a perspective view from the image pickup device direction (B). 本実施形態に係るカメラモジュールの動作説明図で、レンズが最も望遠(テレ)側にある状態(a)、同じく最も広角(ワイド)側にある状態(b)を示す。 In operation explanatory diagram of a camera module according to the present embodiment, the state lens is at the most telephoto side (a), showing a state (b) in the same most wide-angle side. 摺動部材と駆動軸の当接状態を示す図で、側断面図(a)、平断面図(b)、要部断面図(c)である。 A diagram showing a contact state of the sliding member and the drive shaft is a side sectional view (a), cross-sectional plan view (b), fragmentary cross-sectional view (c). 本実施形態に係るカメラモジュールの構造説明図で、左側面図(a)、上面図(b)、右側面図(c)、左下方からの斜視図(d)、右上方からの斜視図(e)、(b)におけるA−A線断面図(f)、同じく(b)におけるB−B線断面図(g)、同じく(b)におけるC−C線断面図(h)である。 In the structure diagram of a camera module according to the present embodiment, a left side view (a), top view (b), right side view (c), a perspective view from the lower left (d), perspective view from the upper right ( e), a (a-a line sectional view in b) (f), also (B-B line sectional view in b) (g), similarly sectional view taken along line C-C in (b) (h). 本実施形態のカメラモジュールの全体構成を示す斜視図(a)、カバーを装着した際の斜視図(b)である。 Perspective view showing an overall configuration of a camera module of this embodiment (a), a perspective view when mounting the cover (b). 本実施形態のカメラモジュールが組み込まれた携帯電話機の一例を概略的に示す図である。 An example of a mobile phone camera module of this embodiment is incorporated is a diagram schematically showing.

符号の説明 DESCRIPTION OF SYMBOLS

1 カメラモジュール 2 レンズ保持枠 6 ばね受け 3 安定重量部材 4 固定枠 4a 摺動面 5 摺動部材 5a 摺動面 7 ばね部材 8 電歪素子 9 駆動軸 10 集塵部材 11 粘着部材 12 レンズ 13 回路基盤 14 カバー 16 連絡フレキシブルプリント基板 17 ホール素子 18 マグネット 19 フィルタガラス 20 撮像素子 21 案内軸 1 camera module 2 lens holding frame 6 spring bearing 3 stable weight member 4 fixed frame 4a sliding surface 5 slide member 5a sliding surface 7 spring 8 electrostrictive element 9 drive shaft 10 dust collector 11 pressure-sensitive member 12 lens 13 circuit base 14 cover 16 contact the flexible printed circuit board 17 Hall element 18 magnet 19 filter glass 20 imaging device 21 guide shaft

Claims (12)

  1. 電歪素子と、該電歪素子に軸方向の一端側が連結されて、該電歪素子に加えられた電圧によって軸方向に往復運動若しくは伸縮運動する駆動軸と、該駆動軸の周面の少なくとも一部に摩擦係合する摺動部材が連結されたレンズ保持部と、を備えたカメラモジュールであって、 Electrostrictive element, is connected at one end side in the axial direction to the power magnetostrictive element, a drive shaft that reciprocates or stretching movement in the axial direction by the voltage applied to the power distortion element, at least of the peripheral surface of the drive shaft a lens holder which slide member is connected to frictionally engage a portion, a camera module including a
    前記摺動部材近傍に粘着部材を配設し It disposed an adhesive member on the sliding member vicinity
    前記摺動部材が駆動軸に対面する側の摺動方向に直角な方向に隙間を設け、該隙間に前記粘着部材を配設したことを特徴とするカメラモジュール。 A camera module, wherein the slide member is provided with a gap in a direction perpendicular to the sliding direction of the side facing the drive shaft, and disposing the adhesive member in the gap.
  2. 前記摺動部材が、前記駆動軸と2箇所で摩擦係合することを特徴とする請求項記載のカメラモジュール。 The sliding member, a camera module according to claim 1, characterized in that the frictional engagement with the drive shaft and the two places.
  3. 前記摺動部材のうち前記電歪素子側の端部で且つ前記駆動軸若しくは前記電歪素子周面と対面する側に、集塵部材を配設したことを特徴とする請求項記載のカメラモジュール。 On the side facing the and the drive shaft or the electrostrictive element peripheral surface at an end of said electrostrictive element side of the sliding member, a camera according to claim 1, characterized in that arranged the dust collecting member module.
  4. 前記摺動部材の前記駆動軸に当接する面が断面円弧状に形成され、断面円弧状の略円環状に形成された隙間に集塵部材を配設したことを特徴とする請求項1若しくは3記載のカメラモジュール。 The surface contacting to the drive shaft of the sliding member is formed in an arc-shaped cross section, according to claim 1 or 3, characterized in that arranged the dust collecting member in the gap formed in a substantially annular cross section arcuate the camera module described.
  5. 前記摺動部材の隙間が前記駆動軸の軸方向に2箇所以上設けられ、該隙間の少なくとも一箇所に、集塵部材を配設したことを特徴とする請求項記載のカメラモジュール。 The gap of the sliding member is provided at two or more locations in the axial direction of the drive shaft, at least one portion of the gap, a camera module according to claim 1, characterized in that arranged the dust collecting member.
  6. 前記摺動部材の隙間が、少なくとも前記駆動軸の軸方向両端側に2箇所設けられ、該2箇所の隙間に集塵部材を夫々配設したことを特徴とする請求項1若しくは2記載のカメラモジュール。 The gap of the sliding member is provided at two locations in the axial direction end sides of at least the drive shaft, according to claim 1 or 2, wherein the camera is characterized in that the respectively arranged the dust collecting member in the gap of the two locations module.
  7. 前記2箇所の間に前記粘着部材を配設したことを特徴とする請求項記載のカメラモジュール。 The camera module according to claim 2, characterized in that arranged the adhesive member between the two positions.
  8. 前記駆動軸のうち前記摺動部材と当接する箇所の表面を、非当接の表面より粗く処理したことを特徴とする請求項1記載のカメラモジュール。 The camera module of claim 1, wherein the said sliding member and the surface of the abutting portion, and treated coarser than the non-contact surface of the drive shaft.
  9. 前記駆動軸が、前記摺動部材と該摺動部材の逆側に配設された固定枠とに挟まれて支持されるようにし、前記固定枠側の摺動面における摩擦係数を前記摺動部材側の摺動面における摩擦係数より低く処理したことを特徴とする請求項1記載のカメラモジュール。 Said drive shaft, said sliding member and the sliding sandwiched between the opposite side disposed on the fixed frame of the rotary members so as to be supported, said sliding friction coefficient in the sliding surface of the fixed frame side the camera module of claim 1, wherein the treated lower than the friction coefficient in the sliding surface of the member.
  10. 前記駆動軸が、前記摺動部材と該摺動部材の逆側に配設された固定枠とに挟まれて支持されるようにし、前記駆動軸のうち前記固定枠に摺動する側の表面に潤滑処理を施し、前記摺動部材に摺動する側の表面では前記潤滑処理を省いたことを特徴とする請求項1記載のカメラモジュール。 Said drive shaft, said sliding member and the sliding sandwiched between the opposite side disposed on the fixed frame of the rotary members so as to be supported, the surface of the side that slide on the fixed frame of the drive shaft the camera module of claim 1, wherein subjected to lubrication treatment, said surface on the side that slide on the sliding member, characterized in that it omitted the lubricating process.
  11. 前記摺動部材を前記駆動軸に当接する方向に付勢する弾性部材が設けられていることを特徴とする請求項1記載のカメラモジュール。 The camera module of claim 1, wherein the elastic member that urges the sliding member in abutting direction to the drive shaft.
  12. 電歪素子と、該電歪素子に軸方向の一端側が連結されて、該電歪素子に加えられた電圧によって軸方向に往復運動若しくは伸縮運動する駆動軸と、該駆動軸の周面の少なくとも一部に摩擦係合する摺動部材が連結されたレンズ保持部と、を備えたカメラモジュールであって、前記摺動部材近傍に粘着部材を配設し、前記摺動部材が駆動軸に対面する側の摺動方向に直角な方向に隙間を設け、該隙間に前記粘着部材を配設したカメラモジュールと、 Electrostrictive element, is connected at one end side in the axial direction to the power magnetostrictive element, a drive shaft that reciprocates or stretching movement in the axial direction by the voltage applied to the power distortion element, at least of the peripheral surface of the drive shaft a lens holder which slide member is connected to frictionally engage a portion, a camera module having a, disposed an adhesive member on the sliding member near the sliding member facing the drive shaft sliding direction on the side of the clearance provided in the perpendicular direction, a camera module which is disposed to the adhesive member in the gap,
    操作部材と、 And the operation member,
    表示部材と、 And the display member,
    バッテリーと、 And battery,
    通信部と、 A communication unit,
    前記カメラモジュール、該操作部材、該表示部材、該バッテリー、及び、該通信部を収納すると共に該筐体の厚さ寸法を略前記カメラモジュールの高さ寸法に規制した筐体と、を含むことを特徴とする情報端末。 The camera module, operating member, said display member, the battery, and include a housing which is restricted to a height of approximately the camera module thickness dimension of the housing with housing the communication unit information terminal and said.
JP2005231858A 2005-08-10 2005-08-10 Information terminal equipped with a camera module and the camera module Expired - Fee Related JP3791847B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005231858A JP3791847B1 (en) 2005-08-10 2005-08-10 Information terminal equipped with a camera module and the camera module

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2005231858A JP3791847B1 (en) 2005-08-10 2005-08-10 Information terminal equipped with a camera module and the camera module
EP20050793682 EP1811325B1 (en) 2004-10-20 2005-10-12 Camera module, and portable terminal and information terminal with the same
US11/576,673 US20070229702A1 (en) 2004-10-20 2005-10-12 Camera Module, and Portable Terminal and Information Terminal with the Same
KR20077009118A KR101159385B1 (en) 2004-10-20 2005-10-12 Camera module, and portable terminal and information terminal with the same
PCT/JP2005/018795 WO2006043456A1 (en) 2004-10-20 2005-10-12 Camera module, and portable terminal and information terminal with the same

Publications (2)

Publication Number Publication Date
JP3791847B1 true JP3791847B1 (en) 2006-06-28
JP2007047458A JP2007047458A (en) 2007-02-22

Family

ID=36674858

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005231858A Expired - Fee Related JP3791847B1 (en) 2005-08-10 2005-08-10 Information terminal equipped with a camera module and the camera module

Country Status (1)

Country Link
JP (1) JP3791847B1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015153200A1 (en) * 2014-04-04 2015-10-08 Qualcomm Incorporated Auto-focus in low-profile folded optics multi-camera system
US9294672B2 (en) 2014-06-20 2016-03-22 Qualcomm Incorporated Multi-camera system using folded optics free from parallax and tilt artifacts
US9386222B2 (en) 2014-06-20 2016-07-05 Qualcomm Incorporated Multi-camera system using folded optics free from parallax artifacts
US9383550B2 (en) 2014-04-04 2016-07-05 Qualcomm Incorporated Auto-focus in low-profile folded optics multi-camera system
US9398264B2 (en) 2012-10-19 2016-07-19 Qualcomm Incorporated Multi-camera system using folded optics
US9438889B2 (en) 2011-09-21 2016-09-06 Qualcomm Incorporated System and method for improving methods of manufacturing stereoscopic image sensors
US9485495B2 (en) 2010-08-09 2016-11-01 Qualcomm Incorporated Autofocus for stereo images
US9541740B2 (en) 2014-06-20 2017-01-10 Qualcomm Incorporated Folded optic array camera using refractive prisms
US9549107B2 (en) 2014-06-20 2017-01-17 Qualcomm Incorporated Autofocus for folded optic array cameras
US9819863B2 (en) 2014-06-20 2017-11-14 Qualcomm Incorporated Wide field of view array camera for hemispheric and spherical imaging
US9832381B2 (en) 2014-10-31 2017-11-28 Qualcomm Incorporated Optical image stabilization for thin cameras
US10013764B2 (en) 2014-06-19 2018-07-03 Qualcomm Incorporated Local adaptive histogram equalization
US10178373B2 (en) 2013-08-16 2019-01-08 Qualcomm Incorporated Stereo yaw correction using autofocus feedback

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101089991B1 (en) 2009-11-20 2011-12-05 삼성전기주식회사 Camera module and lens driving device

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9485495B2 (en) 2010-08-09 2016-11-01 Qualcomm Incorporated Autofocus for stereo images
US9438889B2 (en) 2011-09-21 2016-09-06 Qualcomm Incorporated System and method for improving methods of manufacturing stereoscopic image sensors
US9838601B2 (en) 2012-10-19 2017-12-05 Qualcomm Incorporated Multi-camera system using folded optics
US9398264B2 (en) 2012-10-19 2016-07-19 Qualcomm Incorporated Multi-camera system using folded optics
US10165183B2 (en) 2012-10-19 2018-12-25 Qualcomm Incorporated Multi-camera system using folded optics
US10178373B2 (en) 2013-08-16 2019-01-08 Qualcomm Incorporated Stereo yaw correction using autofocus feedback
US9374516B2 (en) 2014-04-04 2016-06-21 Qualcomm Incorporated Auto-focus in low-profile folded optics multi-camera system
US9973680B2 (en) 2014-04-04 2018-05-15 Qualcomm Incorporated Auto-focus in low-profile folded optics multi-camera system
CN106164766A (en) * 2014-04-04 2016-11-23 高通股份有限公司 Auto-focus in low-profile folded optics multi-camera system
US9860434B2 (en) 2014-04-04 2018-01-02 Qualcomm Incorporated Auto-focus in low-profile folded optics multi-camera system
US9383550B2 (en) 2014-04-04 2016-07-05 Qualcomm Incorporated Auto-focus in low-profile folded optics multi-camera system
WO2015153200A1 (en) * 2014-04-04 2015-10-08 Qualcomm Incorporated Auto-focus in low-profile folded optics multi-camera system
US10013764B2 (en) 2014-06-19 2018-07-03 Qualcomm Incorporated Local adaptive histogram equalization
US9819863B2 (en) 2014-06-20 2017-11-14 Qualcomm Incorporated Wide field of view array camera for hemispheric and spherical imaging
US9549107B2 (en) 2014-06-20 2017-01-17 Qualcomm Incorporated Autofocus for folded optic array cameras
US9843723B2 (en) 2014-06-20 2017-12-12 Qualcomm Incorporated Parallax free multi-camera system capable of capturing full spherical images
US9854182B2 (en) 2014-06-20 2017-12-26 Qualcomm Incorporated Folded optic array camera using refractive prisms
US9541740B2 (en) 2014-06-20 2017-01-10 Qualcomm Incorporated Folded optic array camera using refractive prisms
US9386222B2 (en) 2014-06-20 2016-07-05 Qualcomm Incorporated Multi-camera system using folded optics free from parallax artifacts
US10084958B2 (en) 2014-06-20 2018-09-25 Qualcomm Incorporated Multi-camera system using folded optics free from parallax and tilt artifacts
US9294672B2 (en) 2014-06-20 2016-03-22 Qualcomm Incorporated Multi-camera system using folded optics free from parallax and tilt artifacts
US9733458B2 (en) 2014-06-20 2017-08-15 Qualcomm Incorporated Multi-camera system using folded optics free from parallax artifacts
US9832381B2 (en) 2014-10-31 2017-11-28 Qualcomm Incorporated Optical image stabilization for thin cameras

Also Published As

Publication number Publication date
JP2007047458A (en) 2007-02-22

Similar Documents

Publication Publication Date Title
US7573648B2 (en) Zoom lens
US6856469B2 (en) Lens driving device
JP4433303B2 (en) Lens unit and imaging device
US20140028904A1 (en) Camera module
US8908086B2 (en) Driving apparatus for shake correction and imaging apparatus using the same
KR20100071038A (en) Optical lens image stabilization systems
KR20100116584A (en) Optical lens image stabilization systems
CN101685235B (en) Jitter correction device of camera
US20090059373A1 (en) Actuator for linear motion and tilting motion
US8059951B2 (en) Image stabilizing device and camera
US20080129126A1 (en) Vibration wave linear motor
WO2006093934A2 (en) Autofocus camera
JP3847629B2 (en) Optical device
JP3909066B2 (en) Lens driving device
CN101726825B (en) And a lens driving unit of the camera module includes a lens driving unit
CN101625450A (en) Lens driving device
CN102017604B (en) Image shake correction device
KR101229207B1 (en) Camera module and portable terminal employing the same
GB2467481A (en) Shape memory alloy actuation apparatus
TWM362417U (en) Photographing module
CN104204934A (en) A lens driving device and the camera
JP2005037865A (en) Lens driver and portable equipment with camera
US7747149B2 (en) Optical apparatus having image-blur correction/reduction system
JP2006251216A (en) Lens unit and imaging apparatus
TWI277766B (en) Zoom lens and imaging device

Legal Events

Date Code Title Description
TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20060331

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20060331

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090414

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100414

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100414

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110414

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120414

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130414

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140414

Year of fee payment: 8

LAPS Cancellation because of no payment of annual fees