JP3907451B2

JP3907451B2 - Image blur correction apparatus and manufacturing method thereof

Info

Publication number: JP3907451B2
Application number: JP2001352483A
Authority: JP
Inventors: 仁藤井; 孝行林
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2001-11-19
Filing date: 2001-11-19
Publication date: 2007-04-18
Anticipated expiration: 2021-11-19
Also published as: JP2003149699A

Description

【０００１】
【発明の属する技術分野】
本発明は、カメラ等の光学機器に用いられる像振れ補正装置およびその製造方法に関するものである。
【０００２】
【従来の技術】
従来の像振れ補正装置は、たとえば補正レンズをピッチング枠に保持し、このピッチング枠をヨーイング枠に設けたシャフトをガイドとして、鉛直方向（ピッチング方向）に移動可能に支持されている。また、ヨーイング枠は固定枠に設けたシャフトをガイドとして、水平方向（ヨーイング方向）に移動可能に支持されている。これにより、補正レンズは固定枠に対して互いに直交するピッチング／ヨーイング方向にそれぞれ移動自在に支持されている。
【０００３】
またピッチング枠には、ピッチング／ヨーイング方向に駆動するため、２つのコイル部を形成した１枚の積層プリントコイルが固着されている。この積層プリントコイルは、フレキシブルプリント基板に貼られており、同時に両コイル部はフレキシブルプリント基板の配線パターンに半田により接続されており、両コイル部に通電可能となっている。また、この積層プリントコイルに対向した位置に２極着磁したマグネットをヨークを介して固定枠に固定している。
【０００４】
これらのマグネットとヨークおよびコイルとにより磁気駆動回路を構成し、各駆動コイルに通電することでピッチング枠をピッチング方向に、ヨーイング枠をヨーイング方向にそれぞれ駆動できるように構成し、このような構成により補正レンズを駆動して像振れ補正を行っている。
【０００５】
前記積層プリントコイルについて図６と図７を参照して説明する。
従来の積層プリントコイル３１は、光学系空間に対応して凹部３１ｃが形成され、この凹部３１ｃを中心に９０°隔てた両側にそれぞれコイル部３１ａ，３１ｂが形成された形成面３１ｄ，３１ｅが設けられ、形成部３１ｄ，３１ｅ間に幅の狭い連結部３１ｆが形成されて、全体として正面視が略Ｌ字形の異形状に形成されている。またフレキシブルプリント基板３２も積層プリントコイル３１と略同一形状で、凹部３２ｃを中心に９０°隔てた両側に形成面３２ｄ，３２ｅが形成され、形成部３２ｄ，３２ｅ間に幅の狭い連結部３２ｆが形成されて、全体として正面視が略Ｌ字形の異形状に形成されている。
【０００６】
また、前記積層プリントコイル３１は、図７に示すように、通常１枚の基板（材料）４１から複数個取りして製作されるもので、複数個取りする基板４１内での積層プリントコイル３１の並べ方を示している。図中に示すようにたとえば横ａ×縦ｂが１００ｍｍ×１００ｍｍの基板４１の範囲内に重なることなく積層プリントコイル３１を配列することにより、２０枚の積層プリントコイル３１を作成して、量産対応を行っている。
【０００７】
【発明が解決しようとする課題】
しかしながら、従来の像振れ補正装置では、補正レンズを２方向に駆動するための２つのコイル部３１ａ，３１ｂが同一の積層プリントコイル３１に形成されている。このため、所定サイズの基板４１から複数個取りするときに、基板４１内で複数個配置したときの製品となる面積を多く取るには不利であり（製品間隔が広く無駄となる隙間が多い）、基板１枚あたりの積層プリントコイル作成枚数を多くすることができず、結果として積層プリントコイルのコストが高くなり、コストダウンを図りにくい。また２つのコイル部のうち一方でも不良があると、積層プリントコイルを廃棄することになり、製品の歩留まりが悪く生産効率が低いという問題があった。
【０００８】
本発明は、上記問題を解決して、駆動コイルを形成する積層プリントコイルのコストダウンを図り、生産コストの削減が可能な像振れ補正装置およびその製造方法を提供することを目的とする。
【０００９】
【課題を解決するための手段】
上記目的を達成するために請求項１記載の像振れ補正装置は、撮影光学系に介在された補正レンズを光軸に対して垂直面内で互いに直交する第１方向および第２方向に移動させて像振れ補正を行う像振れ補正装置であって、前記補正レンズを保持するレンズ保持部材と、固定部材に前記レンズ保持部材を、第１方向に移動自在に支持する第１支持手段および第２方向に移動自在に支持する第２支持手段と、前記レンズ保持部材を第１方向に駆動する第１駆動手段および第２方向に駆動する第２駆動手段とを備え、前記第１駆動手段および第２駆動手段を、前記レンズ保持部材に設けられて光軸に垂直な略同一平面内に配置された第１積層プリントコイルおよび第２積層プリントコイルと、前記固定部材に設けられてマグネットを有する第１ヨークおよび第２ヨークとで構成し、第１積層プリントコイルおよび第２積層プリントコイルを別体で形成してフレキシブルプリント基板に一体に取り付け、このフレキシブルプリント基板をレンズ保持部材に取り付けたものである。
【００１０】
請求項５記載の像振れ補正装置は、撮影光学系に介在された補正レンズを光軸に対して垂直面内で互いに直交する第１方向および第２方向に移動させて像振れ補正を行う像振れ補正装置であって、前記補正レンズを保持するレンズ保持部材と、固定部材に前記レンズ保持部材を、第１方向に移動自在に支持する第１支持手段および第２方向に移動自在に支持する第２支持手段と、前記レンズ保持部材を第１方向に駆動する第１駆動手段および第２方向に駆動する第２駆動手段とを備え、前記第１駆動手段および第２駆動手段を、光軸に垂直な略同一平面内に配置されかつ別体からなる第１積層プリントコイルおよび第２積層プリントコイルと、マグネットを有する第１ヨークおよび第２ヨークとで構成し、前記別体からなる第１積層プリントコイルおよび第２積層プリントコイルとその通電用のフレキシブルプリント基板をレンズ保持部材に取り付け、マグネットを有する第１ヨークおよび第２ヨークを前記固定部材に取り付けたものである。
【００１１】
請求項６記載の像振れ補正装置の製造方法は、撮影光学系に介在された補正レンズを光軸に対して垂直面内で互いに直交する第１方向および第２方向に移動させて像振れ補正を行う補正レンズと、前記補正レンズを保持するレンズ保持部材と、固定部材に前記レンズ保持部材を、第１方向に移動自在に支持する第１支持手段および第２方向に移動自在に支持する第２支持手段と、前記レンズ保持部材を第１方向に駆動する第１駆動手段および第１方向に直交する第２方向に駆動する第２駆動手段とを備え、前記第１駆動手段および第２駆動手段が光軸に垂直な略同一平面内に配置され、別体からなる第１積層プリントコイルおよび第２積層プリントコイルと、マグネットを有する第１ヨークおよび第２ヨークとで構成した像振れ補正装置の製造方法であって、前記第１積層プリントコイルおよび前記第２積層プリントコイルを別体で形成し、別体で形成された前記第１積層プリントコイルおよび前記第２積層プリントコイルをフレキシブルプリント基板に一体に取り付け、前記第１積層プリントコイルおよび前記第２積層プリントコイルが取り付けられたフレキシブルプリント基板を、レンズ保持部材の光軸に垂直な略同一平面内に取り付けるものである。
【００１２】
上記各構成によれば、第１積層プリントコイルおよび第２積層プリントコイルとを別体で形成して、フレキシブルプリント基板に一体に取り付けるように構成したので、第１積層プリントコイルと第２積層プリントコイルとをそれぞれ単純な形状に形成することができ、積層プリントコイルを一枚の基板中に効率よく並べて、基板１枚当たりの取り数を多くすることができる。これにより、積層プリントコイルの製造コストを抑制することが可能となり、像振れ補正装置のコストダウンを図ることができる。
【００１３】
また第１，第２積層プリントコイルは、それぞれ独立した個片により形成されているので、一方のコイルが不良となった場合でも他方のコイルは使用可能である。したがって、積層プリントコイルの製造における歩留まりが向上し、結果として積層プリントコイルのコストを下げることが可能となり、像振れ補正装置のコストダウンを図ることができる。
【００１４】
さらに第１，第２積層プリントコイルは、それぞれ独立した個片からなり、フレキシブルプリント基板に一体的に固着されているので、第１，第２積層プリントコイルを連結しているフレキシブルプリント基板の弾性範囲内で相対位置関係をずらすことができる。これにより、積層プリントコイルを取り付けるレンズ保持部材の設計において、たとえば必要に応じて第１，第２積層プリントコイルの取付面に段差を設けるなどのように、各部品の効率的な配置が可能となり、このような設計の自由度の向上により像振れ補正装置の小形化を図ることができる。
【００１５】
請求項２記載の像振れ補正装置は、請求項１記載の構成において、フレキシブルプリント基板に、第１積層プリントコイルの取付面と第２積層プリントコイルの取付面との間を連結する連結部を設け、該連結部に補強部材を固着したものである。
【００１６】
上記構成によれば、補強部材によりフレキシブルプリント基板の連結部の機械的強度が上がるため、第１，第２積層プリントコイルをレンズ保持部材に固着する固着作業中等のハンドリングによって、誤ってフレキシブルプリント基板を連結部で切断破損することがなくなるとともに、連結部の強度アップによって第１，第２積層プリントコイル同士が、互いに相対位置関係を保ったまま略一体となるので、組み付け作業が容易になり生産性の向上を図ることができる。
【００１７】
請求項３記載の像振れ補正装置は、請求項２記載の構成において、補強部材を、連結部に折り曲げ可能に設けられた折りたたみ部により構成し、該折りたたみ部を折り曲げて固着手段により連結部に固着するように構成したものである。
【００１８】
上記構成によれば、補強部材を、連結部に一体に成形された折りたたみ部により構成したので、補強板を追加することなく、連結部の強度アップを図ることができ、部品点数を削減することが可能となる。これにより部品コストと部品組み立て工数を抑制することができ、像振れ補正装置のコストダウンを図ることができる。
【００１９】
請求項４記載の像振れ補正装置は、請求項２または３記載の構成において、補強部材により、連結部と第１積層プリントコイルと第２積層プリントコイルの一部と重ねて固着するように構成したものである。
【００２０】
上記構成によれば、連結部の強度をさらに向上できるとともに、第１積層プリントコイルと第２積層プリントコイルとを強固に一体化することができ、組み付け作業が容易になり生産性の向上を図ることができる。
【００２１】
請求項７記載の像振れ補正装置の製造方法は、請求項６記載の方法において、別体で形成された前記第１積層プリントコイルおよび前記第２積層プリントコイルを、略矩形に形成するとともに、基板から複数個取りして成形したものである。
【００２２】
上記構成によれば、第１，第２積層プリントコイルを略矩形に形成したので、形状的な設計制約が少なく、他製品の鏡筒に用いられる他の像振れ補正装置の駆動用コイルとして流用することが容易になり、部品の共用化ができる。その結果、製品ごとに駆動用コイルを設計および製造する必要が無く、かつ量産メリットを活かすことで、積層プリントコイルのコストを下げることが可能となり、像振れ補正装置のコストダウンを図ることができる。
【００２３】
【発明の実施の形態】
ここで、本発明に係る像振れ補正装置の第１の実施の形態を図１〜図５に基づいて説明する。
【００２４】
図１〜図３に示すように、補正レンズ１は、レンズ保持部材である第１移動枠２に保持されており、第１移動枠２は、第２移動枠（第2支持手段）３に光軸Ｏに対して垂直な面上で鉛直線（Ｙ方向）に対して反時計回りに４５°をなす方向に設けられた２本のシャフト（第１支持手段）１３ａ、１３ｂと、第１移動枠２にシャフト１３ａ、１３ｂと平行に配置された１本の回り止めシャフト（第１支持手段）１３ｃをガイドとして、第２移動枠３に第２方向Ｙ’に移動自在に支持されている。また第２移動枠３は、固定枠（固定部材）４に光軸Ｏに対して垂直な面上で鉛直方向から反時計回りに４５°をなす第２方向Ｙ’に設けられたシャフト（第１支持手段）１３ａ、１３ｂに直交する方向の２本のシャフト（第２支持手段）１４ａ、１４ｂと、第２移動枠３にシャフト１４ａ、１４ｂと平行に設けられた１本の回り止めシャフト（図示せず）をガイドとして、固定枠４に第１方向Ｘ’に移動自在に支持されている。これにより、補正レンズ１は固定枠４に互いに９０°をなす第１方向Ｘ’および第２方向Ｙ’に移動自在に支持されている。
【００２５】
補正レンズ１を第１方向Ｘ’および第２方向Ｙ’に駆動するために、第１移動枠２と固定枠４とに磁気回路からなる第１駆動手段および第２駆動手段が設けられている。すなわち、第１方向Ｘ’に駆動される第１駆動コイルであるコイル部５ａを有する第１積層プリントコイル５と、第２方向Ｙ’に駆動される第２駆動コイルであるコイル部６ａを有する第２積層プリントコイル６とが、フレキシブルプリント基板７のコイル取付面７ｃ，７ｄにそれぞれ位置決め孔５ｂ，６ｂ，７ｂを介して位置決めされ両面テープ（図示せず）により貼り付けられて固着されている。そして、積層プリントコイル５，６と一体化されたフレキシブルプリント基板７が位置決め孔７ｂを介して位置決めされ接着剤により第１移動枠２の取り付け面に固着されている。また、積層プリントコイル５，６はフレキシブルプリント基板７上の所定の配線と半田付けによってそれぞれ結線されてコイル部５ａ，６ａへの通電が可能となっている。
【００２６】
またフレキシブルプリント基板７は、光学系空間に対応する円弧状の凹部７ａを中心に９０°隔てた両側にコイル取付部７ｃ，７ｄが形成され、コイル取付面７ｃ，７ｄ間に幅の狭い連結部７ｅが形成されて全体が略Ｌ字形の異形状に形成されている。そして第１，第２積層プリントコイル５，６は、光学系空間に対応して一辺に円弧状の凹部５ｃ，６ｃが形成された略矩形状で、一側部にコイル部５ａ，６ａがそれぞれ形成されている。
【００２７】
一方、固定枠４には、第１，第２積層プリントコイル５，６に対向して２極着磁されたマグネット８Ａ、８Ｂを有するヨーク９Ａ、９Ｂが圧入固定されている。またヨーク９Ａ、９Ｂに第１，第２積層プリントコイル５、６を挟んで対向する対向ヨーク１０Ａ，１０Ｂが固定枠４に取り付けられている。
【００２８】
このように、マグネット８Ａ，ヨーク９Ａ，１０Ａおよび第１積層プリントコイル５のコイル部５ａからなる磁気回路により第１駆動手段が構成され、マグネット８Ｂ，ヨーク９Ｂ，１０Ｂおよび第２積層プリントコイル６のコイル部６ａからなる磁気回路により第２駆動手段が構成されており、したがって第１，第２積層プリントコイル５、６のコイル部５ａ、６ａに通電することにより、第１移動枠２をそれぞれ２方向Ｘ’，Ｙ’に駆動して補正レンズ１を所定の方向に移動させ、像振れ補正を可能にしている。
【００２９】
次に、積層プリントコイル５、６を複数製造する際の材料となる基板２１について述べる。
積層プリントコイル５、６は、所定サイズの基板２１内に複数個を並べて配置し、１枚の基板２１から同時に複数個取りして製作している。ここで、本発明の像振れ補正装置の第１，第２積層プリントコイル５、６は、それぞれ独立した個片からなり、その外形を略矩形に形成されているため、図３に示すように所定のサイズの基板２１内に複数個並べた時に、隙間を少なくして多くの積層プリントコイル５、６を配置することができる。
【００３０】
したがって、本発明の積層プリントコイル５、６は、一枚の基板２１から製作できる取り数の効率が良く、たとえば図３に示す横ａかける縦ｂが１００ｍｍ×１００ｍｍの正方形の基板２１から第１および第２積層プリントコイル５、６各１枚ずつを１セット分として合計３６セット分を作成することができる。これに対して、図７に示す従来の積層プリントコイルでは、１００ｍｍ×１００ｍｍの基板から、第１，第２コイル部を有する積層プリントコイルを１セット分として合計２０セット分しか作成することができない。したがって、本発明では、積層プリントコイル５、６の製造コストを削減することが可能となり、像振れ補正装置のコストダウンを図ることができる。
【００３１】
また、図６に示す従来の積層プリントコイルは略Ｌ字形で特殊な形状に形成されるため、設計時の形状的な制約が多く、また他製品の鏡筒などに用いられる他の像振れ補正装置の駆動用コイルとして流用することが困難である。しかし、本発明の第１および第２積層プリントコイル５、６は、それぞれ独立した個片からなり、かつ略矩形状に形成されているため、形状的な設計制約が少なく、他製品の鏡筒に用いられる他の像振れ補正装置の駆動用コイルとして流用することが可能になり、部品の共用化ができる。その結果、製品ごとに駆動用コイルを設計および製造する必要が無く、かつ量産メリットを活かすことで、積層プリントコイル５、６のコストを下げることが可能となり、像振れ補正装置のコストダウンを図ることができる。
【００３２】
さらに図６に示す従来の積層プリントコイルは、２つのコイル部が１枚の積層プリントコイル上に形成されているため、製造過程で例えばレアショート等によって一方のコイル部が不良となった場合、他方のコイルが良品であってもこの積層プリントコイル５は不良品となり、使用することができない。しかし本発明のように、第１，第２積層プリントコイル５、６はそれぞれ独立した個片からなっているので、一方のコイル部５ａが不良となった場合、その不良となった積層プリントコイル５のみが使用不能となるだけで、もう一方の積層プリントコイル６は使用することができ、製造における歩留まりが向上し、結果として積層プリントコイル５、６の製造コストを下げることが可能となり、像振れ補正装置のコストダウンを図ることができる。
【００３３】
また、第１および第２積層プリントコイル５、６はそれぞれ独立した個片からなり、フレキシブルプリント基板７に一体的に固着されているので、第１および第２積層プリントコイル５、６はそれぞれ間を連結しているフレキシブルプリント基板７の弾性範囲内で相対位置関係をずらすことができる。たとえば積層プリントコイル５、６を取り付ける第１移動枠２の設計において、必要に応じて、第１および第２積層プリントコイル５、６のそれぞれの取り付け面に段差を設けることができ、その他の相対位置関係を調整することで各部品の効率的な配置が可能となり、これにより像振れ補正装置の小形化を図ることができる。
【００３４】
（第２の実施の形態）
像振れ補正装置の第２実施の形態を図４に基づいて説明する。なお、第１実施の形態と同一部材には同一符号を付して説明を省略する。
【００３５】
フレキシブルプリント基板７は、第１積層プリントコイル５および第２積層プリントコイル６を所定距離を離間して固着するコイル取付面７ｃ，７ｄが連結部７ｅを介して一体化されており、連結部７ｅには、高分子材料（樹脂）からなる補強板２２が、コイル取付面７ｃ，７ｄとは反対側の面に、第１および第２積層プリントコイル５、６の一部と連結部７ｅとを同時に被い重ねるように位置決め孔２２ｂにより位置決めされて両面テープ（図示せず）で固着されている。
【００３６】
上記のように構成された像振れ補正装置においては、フレキシブルプリント基板７の連結部７ｅの機械的強度が上がるために、第１および第２積層プリントコイル５、６を第１移動枠２に固着する固着作業中等のハンドリングによって、誤ってフレキシブルプリント基板７を連結部７ｅで切断破損することがなくなるとともに、連結部７ｅの強度アップによって第１および第２積層プリントコイル５、６とが、互いに相対位置関係を保ったまま略一体となるので、組み付け作業が容易になり生産性の向上を図ることができる。
【００３７】
（第３の実施の形態）
像振れ補正装置の第３の実施の形態を図５に基づいて説明する。なお、第１実施の形態と同一部材には同一符号を付して説明を省略する。
【００３８】
フレキシブルプリント基板７は、第１積層プリントコイル５および第２積層プリントコイル６を所定距離を離間して固着するコイル取付面７ｃ，７ｄが連結部７ｅを介して一体化されており、連結部７ｅには、凹部７ａ側に張り出した折りたたみ部７ｆが設けられている。この折りたたみ部７ｆは、折り曲げ線に沿って連結部７ｅの背面側に折り曲げ可能で、固着手段である両面テープ２３が張り付けられている。
【００３９】
そして、この折りたたみ部７ｆをフレキシブルプリント基板７の第１および第２積層プリントコイル５、６を貼り付けた面とは反対側の面に、第１および第２積層プリントコイル５、６の一部と連結部７ｅとを重ねるように折り曲げて、両面テープ２３で固着している。
【００４０】
したがって、上記構成によれば、折りたたみ部７ｆによりフレキシブルプリント基板７の連結部７ｅの機械的強度が上がるために、第１および第２積層プリントコイル５、６を第１移動枠２に固着する固着作業中等のハンドリングによって、誤ってフレキシブルプリント基板７を連結部７ｅで切断破損することがなくなるとともに、連結部７ｅの強度アップによって第１および第２積層プリントコイル５、６とが、互いに相対位置関係を保ったまま略一体となるので、組み付け作業が容易になり生産性の向上を図ることができる。
【００４１】
さらに、折りたたみ部７ｆはフレキシブルプリント基板７に一体に成形されるので、補強板の追加が必要なく、連結部７ｅの強度アップを図ることができ、部品点数を削減することが可能となる。すなわち、部品コストと部品組み立て工数を抑制することで、像振れ補正装置のコストダウンを図ることができる。
【００４２】
【発明の効果】
以上に述べたごとく請求項１および５記載の像振れ補正装置ならびに請求項６記載の像振れ補正装置の製造方法によれば、第１積層プリントコイルおよび第２積層プリントコイルとを別体で形成して、フレキシブルプリント基板に一体に取り付けるように構成したので、第１積層プリントコイルと第２積層プリントコイルとをそれぞれ単純な形状に形成することができ、積層プリントコイルを一枚の基板中に効率よく並べて、基板１枚当たりの取り数を多くすることができる。これにより、積層プリントコイルの製造コストを抑制することが可能となり、像振れ補正装置のコストダウンを図ることができる。
【００４３】
また第１，第２積層プリントコイルは、それぞれ独立した個片により形成されているので、一方のコイルが不良となった場合でも他方のコイルは使用可能である。したがって、積層プリントコイルの製造における歩留まりが向上し、結果として積層プリントコイルのコストを下げることが可能となり、像振れ補正装置のコストダウンを図ることができる。
【００４４】
さらに第１，第２積層プリントコイルは、それぞれ独立した個片からなり、フレキシブルプリント基板に一体的に固着されているので、第１，第２積層プリントコイルを連結しているフレキシブルプリント基板の弾性範囲内で相対位置関係をずらすことができる。これにより、積層プリントコイルを取り付けるレンズ保持部材の設計において、たとえば必要に応じて第１，第２積層プリントコイルの取付面に段差を設けるなどのように、各部品の効率的な配置が可能となり、このような設計の自由度の向上により像振れ補正装置の小形化を図ることができる。
【００４５】
請求項２記載の像振れ補正装置によれば、補強部材によりフレキシブルプリント基板の連結部の機械的強度が上がるため、第１，第２積層プリントコイルをレンズ保持部材に固着する固着作業中等のハンドリングによって、誤ってフレキシブルプリント基板を連結部で切断破損することがなくなるとともに、連結部の強度アップによって第１，第２積層プリントコイル同士が、互いに相対位置関係を保ったまま略一体となるので、組み付け作業が容易になり生産性の向上を図ることができる。
【００４６】
請求項３記載の像振れ補正装置によれば、補強部材を、連結部に一体に成形された折りたたみ部により構成したので、補強板を追加することなく、連結部の強度アップを図ることができ、部品点数を削減することが可能となる。これにより部品コストと部品組み立て工数を抑制することができ、像振れ補正装置のコストダウンを図ることができる。
【００４７】
請求項４記載の像振れ補正装置によれば、連結部の強度をさらに向上できるとともに、第１積層プリントコイルと第２積層プリントコイルとを強固に一体化することができ、組み付け作業が容易になり生産性の向上を図ることができる。
【００４８】
請求項７記載の像振れ補正装置の製造方法によれば、第１，第２積層プリントコイルを略矩形に形成したので、形状的な設計制約が少なく、他製品の鏡筒に用いられる他の像振れ補正装置の駆動用コイルとして流用することが容易になり、部品の共用化ができる。その結果、製品ごとに駆動用コイルを設計および製造する必要が無く、かつ量産メリットを活かすことで、積層プリントコイルのコストを下げることが可能となり、像振れ補正装置のコストダウンを図ることができる。
【図面の簡単な説明】
【図１】本発明に係る像振れ補正装置の第１の実施の形態の構成を示す分解斜視図である。
【図２】同像振れ補正装置のフレキシブル基板と積層プリントコイルを示し、（ａ）は拡大分解斜視図、（ｂ）は正面図である。
【図３】同像振れ補正装置の積層プリントコイルを製造する多数取り基板を示す正面図である。
【図４】本発明に係る像振れ補正装置の第２の実施の形態を示し、フレキシブル基板と積層プリントコイルの拡大分解斜視図である。
【図５】本発明に係る像振れ補正装置の第３の実施の形態を示し、（ａ）は折りたたみ部の折りたたみ前の状態を示す正面図、（ｂ）は折りたたみ後の状態を示す背面図である。
【図６】従来の像振れ補正装置のフレキシブル基板と積層プリントコイルを示す拡大分解斜視図である。
【図７】従来の像振れ補正装置の積層プリントコイルを製造する多数取り基板を示す正面図である。
【符号の説明】
Ｏ光軸
Ｘ′ 第１方向
Ｙ′ 第２方向
１補正レンズ
２第１移動枠
３第２移動枠
４固定枠
５第１積層プリントコイル
５ａコイル部
６第２積層プリントコイル
６ａコイル部
７フレキシブルプリント基板
７ｃ，７ｄコイル取付面
７ｅ連結部
７ｆ折りたたみ部
７ｇ両面テープ
８Ａ，８Ｂマグネット
９Ａ，９Ｂヨーク
１０Ａ，１０Ｂヨーク
１３ａ〜１３ｃシャフト
１４ａ〜１４ｃシャフト
２１基板
２２補強板
２３両面テープ[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to an image blur correction apparatus used in an optical apparatus such as a camera.And manufacturing method thereofIt is about.
[0002]
[Prior art]
  A conventional image blur correction device is supported so as to be movable in the vertical direction (pitching direction), for example, by holding a correction lens in a pitching frame and using the shaft provided on the yawing frame as a guide. The yawing frame is supported so as to be movable in the horizontal direction (yawing direction) with a shaft provided on the fixed frame as a guide. Thus, the correction lens is supported so as to be movable in the pitching / yawing direction orthogonal to each other with respect to the fixed frame.
[0003]
  In addition, in order to drive the pitching frame in the pitching / yawing direction, a single laminated printed coil having two coil portions is fixed. This laminated printed coil is affixed to a flexible printed circuit board, and at the same time, both coil parts are connected to the wiring pattern of the flexible printed circuit board by soldering so that both coil parts can be energized. Further, a magnet with two poles magnetized at a position facing the laminated printed coil is fixed to a fixed frame via a yoke.
[0004]
  These magnets, yokes, and coils constitute a magnetic drive circuit, and by energizing each drive coil, the pitching frame can be driven in the pitching direction and the yawing frame can be driven in the yawing direction, respectively. Image blur correction is performed by driving a correction lens.
[0005]
  The laminated printed coil will be described with reference to FIGS.
  The conventional multilayer printed coil 31 is provided with concave portions 31c corresponding to the optical system space, and provided with formation surfaces 31d and 31e on which the coil portions 31a and 31b are formed on both sides of the concave portion 31c with a 90.degree. Thus, a connecting portion 31f having a narrow width is formed between the forming portions 31d and 31e, and the front portion is formed in an irregular shape having a substantially L shape as a whole. Also, the flexible printed circuit board 32 has substantially the same shape as the multilayer printed coil 31, and the formation surfaces 32d and 32e are formed on both sides separated by 90 ° from the recess 32c. A narrow connection portion 32f is formed between the formation portions 32d and 32e. As a whole, the front view is formed in a different L-shape.
[0006]
  In addition, as shown in FIG. 7, the multilayer printed coil 31 is usually manufactured by taking a plurality of substrates (materials) 41, and the multilayer printed coil 31 in the substrate 41 to be obtained in plurality. It shows how to arrange. As shown in the figure, for example, 20 laminated printed coils 31 are created by arranging the laminated printed coils 31 without overlapping within the range of the substrate 41 having a width a × length b of 100 mm × 100 mm. It is carried out.
[0007]
[Problems to be solved by the invention]
  However, in the conventional image blur correction apparatus, two coil portions 31a and 31b for driving the correction lens in two directions are formed in the same multilayer printed coil 31. Therefore, when a plurality of substrates 41 of a predetermined size are taken, it is disadvantageous to take a large area as a product when a plurality of substrates are arranged in the substrate 41 (a lot of gaps between products are wide and wasted). The number of laminated printed coils per substrate cannot be increased, resulting in an increase in the cost of the laminated printed coils, making it difficult to reduce costs. Further, if one of the two coil portions is defective, the laminated printed coil is discarded, resulting in a problem that the yield of the product is poor and the production efficiency is low.
[0008]
  The present invention solves the above-described problems, reduces the cost of the multilayer printed coil forming the drive coil, and can reduce the production cost.And manufacturing method thereofThe purpose is to provide.
[0009]
[Means for Solving the Problems]
  In order to achieve the above object,Image blur correction deviceIs an image blur correction apparatus that performs image blur correction by moving a correction lens interposed in a photographing optical system in a first direction and a second direction perpendicular to each other in a plane perpendicular to the optical axis. A lens holding member for holding a lens; a first support means for supporting the lens holding member on a fixed member so as to be movable in a first direction; a second support means for supporting the lens holding member so as to be movable in a second direction; A first driving means for driving the member in the first direction and a second driving means for driving in the second direction, wherein the first driving means and the second driving means are provided on the lens holding member.Placed in the same plane perpendicular to the optical axis.The first laminated printed coil and the second laminated printed coil, and the first yoke and the second yoke provided on the fixing member and having a magnet, and the first laminated printed coil and the second laminated printed coil are separately provided. And are integrally attached to a flexible printed circuit board, and this flexible printed circuit board is attached to a lens holding member.
[0010]
  Claim 5DescribedImage blur correction deviceIs an image blur correction apparatus that performs image blur correction by moving a correction lens interposed in a photographing optical system in a first direction and a second direction perpendicular to each other in a plane perpendicular to the optical axis. A lens holding member for holding a lens; a first support means for supporting the lens holding member on a fixed member so as to be movable in a first direction; a second support means for supporting the lens holding member so as to be movable in a second direction; First driving means for driving the member in the first direction and second driving means for driving in the second direction, the first driving means and the second driving means,Arranged in substantially the same plane perpendicular to the optical axis andThe first laminated printed coil and the second laminated printed coil, which are separately provided, and the first yoke and the second yoke having magnets, and the first laminated printed coil and the second laminated printed coil which are separately provided, and A flexible printed circuit board for energization is attached to a lens holding member, and a first yoke and a second yoke having magnets are attached to the fixing member.
[0011]
  According to a sixth aspect of the present invention, there is provided a method for manufacturing an image blur correction apparatus, wherein the correction lens interposed in the photographing optical system is moved in a first direction and a second direction perpendicular to each other in a plane perpendicular to the optical axis to correct the image blur. A correction lens that performs the correction, a lens holding member that holds the correction lens, a first support means that supports the lens holding member in a first direction, and a first support means that supports the movement in the second direction. 2 supporting means; first driving means for driving the lens holding member in a first direction; and second driving means for driving in a second direction orthogonal to the first direction. The image blur is composed of the first and second laminated printed coils, and the first and second yokes having magnets, in which the two driving means are arranged in substantially the same plane perpendicular to the optical axis. A correction device manufacturing method, wherein the first laminated printed coil and the second laminated printed coil are formed separately, and the first laminated printed coil and the second laminated printed coil formed separately are flexible. A flexible printed circuit board to which the first laminated printed coil and the second laminated printed coil are attached is attached to a printed circuit board in a substantially same plane perpendicular to the optical axis of the lens holding member.Is.
[0012]
  Each of the above configurationsAccording to the present invention, the first laminated printed coil and the second laminated printed coil are formed separately and are integrally attached to the flexible printed circuit board. Each of them can be formed in a simple shape, and the laminated printed coils can be efficiently arranged on one substrate, so that the number of substrates per substrate can be increased. As a result, the manufacturing cost of the multilayer printed coil can be suppressed, and the cost of the image blur correction device can be reduced.
[0013]
  Moreover, since the 1st and 2nd lamination | stacking printed coils are each formed by the independent piece, even when one coil becomes defective, the other coil can be used. Therefore, the yield in the production of the multilayer printed coil is improved, and as a result, the cost of the multilayer printed coil can be reduced, and the cost of the image blur correction device can be reduced.
[0014]
  Furthermore, since the first and second laminated printed coils are made of independent pieces and are integrally fixed to the flexible printed board, the elasticity of the flexible printed board connecting the first and second laminated printed coils. The relative positional relationship can be shifted within the range. As a result, in the design of the lens holding member for mounting the multilayer printed coil, it becomes possible to efficiently arrange each component, for example, by providing a step on the mounting surface of the first and second multilayer printed coils as necessary. Therefore, it is possible to reduce the size of the image blur correction device by improving the degree of freedom of design.it can.
[0015]
  An image blur correction apparatus according to a second aspect is the first aspect.In the configuration described above, the flexible printed circuit board is provided with a connecting portion that connects the mounting surface of the first laminated printed coil and the mounting surface of the second laminated printed coil, and a reinforcing member is fixed to the connecting portion. .
[0016]
  According to the above configuration, since the mechanical strength of the connecting portion of the flexible printed circuit board is increased by the reinforcing member, the flexible printed circuit board is mistakenly handled by handling such as fixing operation for fixing the first and second laminated printed coils to the lens holding member. Can be cut and damaged at the connecting part, and the first and second laminated printed coils are substantially integrated with each other while maintaining the relative positional relationship due to the increased strength of the connecting part. It is possible to improve the performance.
[0017]
  The image blur correction apparatus according to claim 3.IsClaim 2In the configuration described above, the reinforcing member is configured by a foldable portion that is foldable at the connecting portion, and the foldable portion is bent and fixed to the connecting portion by the fixing means.
[0018]
  According to the said structure, since the reinforcement member was comprised by the folding part integrally molded by the connection part, the strength of a connection part can be aimed at without adding a reinforcement board, and a number of parts can be reduced. Is possible. As a result, the part cost and the part assembling man-hour can be suppressed, and the cost of the image blur correction apparatus can be reduced.
[0019]
  The image blur correction apparatus according to claim 4.IsClaim 2 or 3In the configuration described above, the connecting portion, the first laminated printed coil, and a part of the second laminated printed coil are overlapped and fixed by the reinforcing member.
[0020]
  According to the above configuration, the strength of the connecting portion can be further improved, and the first laminated printed coil and the second laminated printed coil can be firmly integrated, which facilitates the assembly work and improves productivity. be able to.
[0021]
  The image blur correction device manufacturing method according to claim 7 is the method according to claim 6, wherein the first multilayer printed coil and the second multilayer printed coil formed separately are formed in a substantially rectangular shape, A plurality of substrates are removed and molded.
[0022]
  According to the above configuration, since the first and second laminated printed coils are formed in a substantially rectangular shape, there are few geometric design restrictions, and they can be used as driving coils for other image blur correction devices used for lens barrels of other products. This makes it easy to share parts. As a result, it is not necessary to design and manufacture a drive coil for each product, and it is possible to reduce the cost of the multilayer printed coil by taking advantage of mass production, thereby reducing the cost of the image blur correction device. .
[0023]
DETAILED DESCRIPTION OF THE INVENTION
  Here, a first embodiment of an image blur correction apparatus according to the present invention will be described with reference to FIGS.
[0024]
  As shown in FIGS. 1 to 3, the correction lens 1 is held by a first moving frame 2 that is a lens holding member, and the first moving frame 2 is attached to a second moving frame (second support means) 3. With respect to a vertical line (Y direction) on a plane perpendicular to the optical axis OCounterclockwiseTwo shafts (first support means) 13a and 13b provided in a direction of 45 °, and one detent shaft (first shaft) arranged in parallel with the shafts 13a and 13b in the first moving frame 2. Support means) 13c as a guide to the second moving frame 3Second direction Y ′It is supported to move freely. The second moving frame 3 has a shaft (first shaft) provided in a second direction Y ′ that forms 45 ° counterclockwise from the vertical direction on a plane perpendicular to the optical axis O of the fixed frame (fixed member) 4. 1 support means) two shafts (second support means) 14a, 14b in a direction perpendicular to 13a, 13b, and one detent shaft provided on the second moving frame 3 in parallel with the shafts 14a, 14b.(Not shown)To the fixed frame 4 as a guideFirst direction X ′It is supported to move freely. Accordingly, the correction lens 1 is supported by the fixed frame 4 so as to be movable in a first direction X ′ and a second direction Y ′ that form 90 ° with each other.
[0025]
  In order to drive the correction lens 1 in the first direction X ′ and the second direction Y ′, the first moving frame 2 and the fixed frame 4 are provided with a first driving means and a second driving means comprising magnetic circuits. . That is, it has the 1st lamination printed coil 5 which has coil part 5a which is the 1st drive coil driven in the 1st direction X ', and coil part 6a which is the 2nd drive coil driven in the 2nd direction Y'. The second laminated printed coil 6 is positioned on the coil mounting surfaces 7c and 7d of the flexible printed circuit board 7 through positioning holes 5b, 6b and 7b, respectively, and is adhered and fixed by a double-sided tape (not shown). . And the flexible printed circuit board 7 integrated with the multilayer printed coils 5 and 6 is positioned through the positioning hole 7b, and is fixed to the mounting surface of the first moving frame 2 with an adhesive. Further, the laminated printed coils 5 and 6 are respectively connected to predetermined wirings on the flexible printed board 7 by soldering so that the coil portions 5a and 6a can be energized.
[0026]
  The flexible printed circuit board 7 has coil mounting portions 7c and 7d formed on both sides of the arc-shaped concave portion 7a corresponding to the optical system space at a center of 90 °, and a narrow connecting portion between the coil mounting surfaces 7c and 7d. 7e is formed, and the whole is formed in a different L-shape. The first and second laminated printed coils 5 and 6 have a substantially rectangular shape in which arc-shaped concave portions 5c and 6c are formed on one side corresponding to the optical system space, and the coil portions 5a and 6a are respectively provided on one side. Is formed.
[0027]
  On the other hand, yokes 9A and 9B having magnets 8A and 8B that are two-pole magnetized facing the first and second laminated printed coils 5 and 6 are press-fitted and fixed to the fixed frame 4. Further, opposed yokes 10A and 10B facing the yokes 9A and 9B across the first and second laminated printed coils 5 and 6 are attached to the fixed frame 4.
[0028]
  Thus, the first drive means is constituted by the magnetic circuit comprising the magnet 8A, the yokes 9A, 10A and the coil portion 5a of the first laminated printed coil 5, and the magnet 8B, the yokes 9B, 10B and the second laminated printed coil 6 The second driving means is constituted by a magnetic circuit composed of the coil portion 6a. Therefore, by energizing the coil portions 5a and 6a of the first and second laminated printed coils 5 and 6, the first moving frame 2 is set to 2 respectively. By driving in the directions X ′ and Y ′, the correction lens 1 is moved in a predetermined direction to enable image blur correction.
[0029]
  Next, the board | substrate 21 used as the material at the time of manufacturing several laminated printed coils 5 and 6 is described.
  A plurality of laminated printed coils 5 and 6 are arranged side by side in a substrate 21 of a predetermined size, and a plurality of the laminated printed coils 5 and 6 are simultaneously manufactured from a single substrate 21. Here, the first and second laminated printed coils 5 and 6 of the image shake correction apparatus of the present invention are made of independent pieces and formed in a substantially rectangular shape, as shown in FIG. When a plurality of substrates 21 are arranged on the substrate 21 of a predetermined size, a large number of laminated printed coils 5 and 6 can be arranged with a small gap.
[0030]
  Therefore, the multilayer printed coils 5 and 6 of the present invention are efficient in the number of pieces that can be manufactured from a single substrate 21. For example, the multilayer printed coils 5 and 6 can be manufactured first from a square substrate 21 having a width a and a length b of 100 mm × 100 mm shown in FIG. In addition, a total of 36 sets can be created, with one each of the second laminated printed coils 5 and 6 as one set. On the other hand, in the conventional multilayer printed coil shown in FIG. 7, only a total of 20 sets of multilayer printed coils having the first and second coil portions can be produced from a 100 mm × 100 mm substrate. . Therefore, in the present invention, the manufacturing cost of the multilayer printed coils 5 and 6 can be reduced, and the cost of the image blur correction device can be reduced.
[0031]
  In addition, since the conventional multilayer printed coil shown in FIG. 6 is formed in a special shape with a substantially L shape, there are many shape restrictions at the time of design, and other image blur correction used for a lens barrel of another product, etc. It is difficult to divert as a drive coil of the apparatus. However, since the first and second laminated printed coils 5 and 6 of the present invention are made of independent pieces and are formed in a substantially rectangular shape, there are few geometric design restrictions, and other product barrels It can be used as a drive coil for other image blur correction devices used in the above-mentioned apparatus, and parts can be shared. As a result, it is not necessary to design and manufacture a drive coil for each product, and it is possible to reduce the cost of the multilayer printed coils 5 and 6 by taking advantage of mass production, thereby reducing the cost of the image blur correction device. be able to.
[0032]
  Furthermore, since the conventional multilayer printed coil shown in FIG. 6 has two coil parts formed on a single laminated printed coil, when one coil part becomes defective due to, for example, a short circuit in the manufacturing process, Even if the other coil is a non-defective product, this multilayer printed coil 5 is defective and used.thingI can't. However, as in the present invention, since the first and second laminated printed coils 5 and 6 are made of independent pieces, respectively, when one of the coil portions 5a becomes defective, the defective laminated printed coil. The other multilayer printed coil 6 can be used only by making only 5 unusable, and the manufacturing yield can be improved. As a result, the production cost of the multilayer printed coils 5 and 6 can be reduced. The cost of the shake correction device can be reduced.
[0033]
  In addition, the first and second laminated printed coils 5 and 6 are made of independent pieces, and are integrally fixed to the flexible printed circuit board 7, so that the first and second laminated printed coils 5 and 6 are respectively separated from each other. The relative positional relationship can be shifted within the elastic range of the flexible printed circuit board 7 connecting the two. For example, in the design of the first moving frame 2 to which the laminated printed coils 5 and 6 are attached, steps can be provided on the respective attachment surfaces of the first and second laminated printed coils 5 and 6 as necessary. By adjusting the positional relationship, it is possible to arrange each component efficiently, and thus the image blur correction device can be miniaturized.
[0034]
  (Second Embodiment)
  A second embodiment of the image blur correction apparatus will be described with reference to FIG. Note that the same members as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
[0035]
  In the flexible printed circuit board 7, coil mounting surfaces 7c and 7d for fixing the first laminated printed coil 5 and the second laminated printed coil 6 with a predetermined distance apart are integrated via a connecting portion 7e, and the connecting portion 7e. The reinforcing plate 22 made of a polymer material (resin) has a part of the first and second laminated printed coils 5 and 6 and the connecting portion 7e on the surface opposite to the coil mounting surfaces 7c and 7d. At the same time, they are positioned by positioning holes 22b so as to be overlaid and fixed by double-sided tape (not shown).
[0036]
  In the image blur correction apparatus configured as described above, the first and second laminated printed coils 5 and 6 are fixed to the first moving frame 2 in order to increase the mechanical strength of the connecting portion 7e of the flexible printed circuit board 7. The flexible printed circuit board 7 is not accidentally cut and damaged at the connecting portion 7e by handling such as during the fixing operation, and the first and second laminated printed coils 5 and 6 are relatively relative to each other by increasing the strength of the connecting portion 7e. Since they are substantially integrated while maintaining the positional relationship, assembly work is facilitated, and productivity can be improved.
[0037]
  (Third embodiment)
  A third embodiment of the image blur correction apparatus will be described with reference to FIG. Note that the same members as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
[0038]
  In the flexible printed circuit board 7, coil mounting surfaces 7c and 7d for fixing the first laminated printed coil 5 and the second laminated printed coil 6 with a predetermined distance apart are integrated via a connecting portion 7e, and the connecting portion 7e. Is provided with a folding portion 7f protruding to the concave portion 7a side. The folding portion 7f can be bent along the folding line to the back side of the connecting portion 7e, and a double-sided tape 23 as an adhering means is attached thereto.
[0039]
  And this folding part 7f is a part of the 1st and 2nd multilayer printed coils 5 and 6 in the surface on the opposite side to the surface which affixed the 1st and 2nd multilayer printed coils 5 and 6 of the flexible printed circuit board 7. And the connecting portion 7e are folded so as to overlap each other and fixed with a double-sided tape 23.
[0040]
  Therefore, according to the above configuration, the first and second laminated printed coils 5 and 6 are fixed to the first moving frame 2 because the mechanical strength of the connecting portion 7e of the flexible printed circuit board 7 is increased by the folding portion 7f. The flexible printed circuit board 7 is not accidentally cut and damaged at the connecting portion 7e due to handling during work, etc., and the first and second laminated printed coils 5 and 6 are in a relative positional relationship with each other by increasing the strength of the connecting portion 7e. Therefore, assembly work is facilitated and productivity can be improved.
[0041]
  Furthermore, since the folding portion 7f is formed integrally with the flexible printed circuit board 7, it is not necessary to add a reinforcing plate, the strength of the connecting portion 7e can be increased, and the number of components can be reduced. That is, the cost of the image blur correction apparatus can be reduced by suppressing the part cost and the part assembly man-hour.
[0042]
【The invention's effect】
  As stated above, claim 1And an image blur correction apparatus according to claim 6 and a method for manufacturing the image blur correction apparatus according to claim 6.According to the present invention, the first laminated printed coil and the second laminated printed coil are formed separately and are integrally attached to the flexible printed circuit board. Each of them can be formed in a simple shape, and the laminated printed coils can be efficiently arranged on one substrate, so that the number of substrates per substrate can be increased. As a result, the manufacturing cost of the multilayer printed coil can be suppressed, and the cost of the image blur correction device can be reduced.
[0043]
  Moreover, since the 1st and 2nd lamination | stacking printed coils are each formed by the independent piece, even when one coil becomes defective, the other coil can be used. Therefore, the yield in the production of the multilayer printed coil is improved, and as a result, the cost of the multilayer printed coil can be reduced, and the cost of the image blur correction device can be reduced.
[0044]
  Furthermore, since the first and second laminated printed coils are made of independent pieces and are integrally fixed to the flexible printed board, the elasticity of the flexible printed board connecting the first and second laminated printed coils. The relative positional relationship can be shifted within the range. As a result, in the design of the lens holding member for mounting the multilayer printed coil, it becomes possible to efficiently arrange each component, for example, by providing a step on the mounting surface of the first and second multilayer printed coils as necessary. Thus, the image blur correction apparatus can be miniaturized by improving the degree of freedom of design.
[0045]
  The image blur correction apparatus according to claim 2.According to the above, since the mechanical strength of the connecting portion of the flexible printed circuit board is increased by the reinforcing member, the flexible printed circuit board is erroneously connected by handling such as fixing operation for fixing the first and second laminated printed coils to the lens holding member. The first and second laminated printed coils are substantially integrated with each other while maintaining the relative positional relationship due to the increased strength of the connecting portion, so that the assembly work becomes easy and the productivity is improved. Improvements can be made.
[0046]
  The image blur correction apparatus according to claim 3.According to the above, since the reinforcing member is constituted by the folding part formed integrally with the connecting part, the strength of the connecting part can be increased without adding a reinforcing plate, and the number of parts can be reduced. It becomes. As a result, the part cost and the part assembling man-hour can be suppressed, and the cost of the image blur correction apparatus can be reduced.
[0047]
  The image blur correction apparatus according to claim 4.According to the above, the strength of the connecting portion can be further improved, the first laminated printed coil and the second laminated printed coil can be firmly integrated, the assembly work becomes easy, and the productivity can be improved. it can.
[0048]
  According to the manufacturing method of the image blur correction device according to claim 7, since the first and second laminated printed coils are formed in a substantially rectangular shape, there are few geometric design restrictions, and the other used in the lens barrel of other products It can be easily used as a drive coil for an image shake correction apparatus, and parts can be shared. As a result, it is not necessary to design and manufacture a drive coil for each product, and it is possible to reduce the cost of the multilayer printed coil by taking advantage of mass production, thereby reducing the cost of the image blur correction device. .
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a configuration of a first embodiment of an image shake correction apparatus according to the present invention.
FIGS. 2A and 2B show a flexible substrate and a laminated printed coil of the image shake correction apparatus, wherein FIG. 2A is an enlarged exploded perspective view, and FIG. 2B is a front view;
FIG. 3 is a front view showing a multi-chip substrate for manufacturing a laminated printed coil of the image shake correcting apparatus.
FIG. 4 is an enlarged exploded perspective view of a flexible substrate and a laminated printed coil, showing a second embodiment of an image shake correcting apparatus according to the present invention.
5A and 5B show a third embodiment of an image shake correction apparatus according to the present invention, in which FIG. 5A is a front view showing a state before folding of a folding unit, and FIG. 5B is a rear view showing a state after folding. It is.
FIG. 6 is an enlarged exploded perspective view showing a flexible printed circuit board and a multilayer printed coil of a conventional image blur correction apparatus.
FIG. 7 is a front view showing a multi-chip substrate for manufacturing a multilayer printed coil of a conventional image blur correction apparatus.
[Explanation of symbols]
    O Optical axis
    X 'first direction
    Y 'second direction
    1 Correction lens
    2 First movement frame
    3 Second movement frame
    4 fixed frame
    5 First laminated printed coil
    5a Coil part
    6 Second laminated printed coil
    6a Coil part
    7 Flexible printed circuit boards
    7c, 7d Coil mounting surface
    7e connecting part
    7f Folding part
    7g double-sided tape
    8A, 8B magnet
    9A, 9B York
    10A, 10B York
    13a-13c shaft
    14a-14c shaft
    21 Substrate
    22 Reinforcing plate
    23 Double-sided tape

Claims

An image blur correction apparatus that performs image blur correction by moving a correction lens interposed in a photographing optical system in a first direction and a second direction orthogonal to each other in a plane perpendicular to an optical axis,
A lens holding member for holding the correction lens, a first support means for supporting the lens holding member on a fixed member so as to be movable in a first direction, and a second support means for supporting the lens holding member so as to be movable in a second direction; A first driving means for driving the lens holding member in the first direction and a second driving means for driving in the second direction;
The first driving means and the second driving means are provided on the lens holding member and disposed in substantially the same plane perpendicular to the optical axis, and the fixing member A first yoke having a magnet and a second yoke,
An image blur correction apparatus, wherein the first multilayer printed coil and the second multilayer printed coil are separately formed and attached integrally to a flexible printed circuit board, and the flexible printed circuit board is attached to a lens holding member.

A flexible printed circuit board is provided with a connecting portion that connects the mounting surface of the first multilayer printed coil and the mounting surface of the second multilayer printed coil,
The image blur correction device according to claim 1, wherein a reinforcing member is fixed to the connecting portion.

The reinforcing member is configured by a foldable portion that can be bent at the connecting portion,
The image blur correction device according to claim 2, wherein the folding portion is bent and fixed to the connecting portion by fixing means.

The image blur correction device according to claim 2 or 3 , wherein the reinforcing member is configured to be overlapped and fixed to a part of the connecting portion, the first laminated printed coil, and the second laminated printed coil.

An image blur correction apparatus that performs image blur correction by moving a correction lens interposed in a photographing optical system in a first direction and a second direction orthogonal to each other in a plane perpendicular to an optical axis,
A lens holding member for holding the correction lens, a first support means for supporting the lens holding member on a fixed member so as to be movable in a first direction, and a second support means for supporting the lens holding member so as to be movable in a second direction; A first driving means for driving the lens holding member in the first direction and a second driving means for driving in the second direction;
The first driving means and the second driving means are arranged in substantially the same plane perpendicular to the optical axis and are separately formed. The first laminated printed coil and the second laminated printed coil, a first yoke having a magnet, and a second With two yokes,
The first laminated printed coil and the second laminated printed coil and the flexible printed circuit board for energizing the separated laminated coils are attached to the lens holding member, and the first yoke and the second yoke having magnets are attached to the fixing member. Image blur correction device characterized.

A correction lens for correcting image blur by moving a correction lens interposed in the photographing optical system in a first direction and a second direction perpendicular to each other in a plane perpendicular to the optical axis, and a lens holding unit for holding the correction lens A first support means for supporting the lens holding member in a first direction, a second support means for supporting the lens holding member in a first direction, and a lens support member in the first direction. First driving means for driving and second driving for driving in a second direction orthogonal to the first direction The first driving means and the second driving means are arranged in substantially the same plane perpendicular to the optical axis, and the first laminated printed coil and the second laminated printed coil are separately formed, and a first magnet having a magnet. A method of manufacturing an image blur correction apparatus including a first yoke and a second yoke,
Forming the first laminated printed coil and the second laminated printed coil separately;
The first laminated printed coil and the second laminated printed coil formed separately are attached integrally to a flexible printed board,
The flexible printed circuit board to which the first laminated printed coil and the second laminated printed coil are attached is attached in substantially the same plane perpendicular to the optical axis of the lens holding member.
A method for manufacturing an image blur correction apparatus.

The first laminated printed coil and the second laminated printed coil formed separately are formed in a substantially rectangular shape, and are formed by taking a plurality from the substrate.
The method of manufacturing an image blur correction apparatus according to claim 6.