JP2001100074A5 - - Google Patents

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Publication number
JP2001100074A5
JP2001100074A5 JP1999277806A JP27780699A JP2001100074A5 JP 2001100074 A5 JP2001100074 A5 JP 2001100074A5 JP 1999277806 A JP1999277806 A JP 1999277806A JP 27780699 A JP27780699 A JP 27780699A JP 2001100074 A5 JP2001100074 A5 JP 2001100074A5
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JP
Japan
Prior art keywords
lens barrel
shift
optical axis
flexible substrate
bent
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.)
Granted
Application number
JP1999277806A
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Japanese (ja)
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JP2001100074A (en
JP4500384B2 (en
Filing date
Publication date
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Priority to JP27780699A priority Critical patent/JP4500384B2/en
Priority claimed from JP27780699A external-priority patent/JP4500384B2/en
Publication of JP2001100074A publication Critical patent/JP2001100074A/en
Publication of JP2001100074A5 publication Critical patent/JP2001100074A5/ja
Application granted granted Critical
Publication of JP4500384B2 publication Critical patent/JP4500384B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【特許請求の範囲】
【請求項1】
複数のレンズ群を具備し、そのうちの一部のレンズ群を光軸と垂直な平面内を平行移動するように構成されたシフト可動部を有するレンズ鏡筒において、該レンズ鏡筒の固定部と前記シフト可動部との間に接続されるフレキシブル基板の前記シフト可動部側の取付け部に、動きの自由度を持たせるよう、直線部と曲げ部とを設けたことを特徴とするレンズ鏡筒。
【請求項2】
前記フレキシブル基板の前記シフト可動部側の取付け部に設けた前記直線部と前記曲げ部とにより、回転の自由度を持たせたことを特徴とする請求項1に記載のレンズ鏡筒。
【請求項3】
前記フレキシブル基板の前記シフト可動部側の取付け部に設けた前記直線部と前記曲げ部とにより、光軸方向の直線移動の自由度を持たせたことを特徴とする請求項1に記載のレンズ鏡筒。
【請求項4】
前記シフト可動部とは、前記光軸と垂直な平面内を平行移動するレンズ群及びその保持部材であることを特徴とする請求項1〜3のいずれか1項に記載のレンズ鏡筒。
【請求項5】
前記シフト可動部は、レンズ鏡筒に加わる振動に起因する像ぶれを補正する為の光学系であることを特徴とする請求項1〜4のいずれか1項に記載のレンズ鏡筒。
[Claims]
[Claim 1]
In a lens barrel having a plurality of lens groups and a shift movable portion configured to move some of the lens groups in parallel in a plane perpendicular to the optical axis, the fixed portion of the lens barrel and the lens barrel. A lens barrel characterized in that a straight portion and a bent portion are provided on a mounting portion on the shift movable portion side of a flexible substrate connected to the shift movable portion so as to have a degree of freedom of movement. ..
2.
The lens barrel according to claim 1, wherein a degree of freedom of rotation is provided by the straight portion and the bent portion provided on the attachment portion of the flexible substrate on the shift movable portion side.
3.
The lens according to claim 1, wherein the straight portion and the bent portion provided on the attachment portion of the flexible substrate on the shift movable portion side provide a degree of freedom of linear movement in the optical axis direction. Lens barrel.
4.
The lens barrel according to any one of claims 1 to 3, wherein the shift movable portion is a lens group that translates in a plane perpendicular to the optical axis and a holding member thereof.
5.
The lens barrel according to any one of claims 1 to 4, wherein the shift movable portion is an optical system for correcting image blur caused by vibration applied to the lens barrel.

【0006】
【課題を解決するための手段】
上記目的を達成するために、本発明は、複数のレンズ群を具備し、そのうちの一部のレンズ群を光軸と垂直な平面内を平行移動するように構成されたシフト可動部を有するレンズ鏡筒において、該レンズ鏡筒の固定部と前記シフト可動部との間に接続されるフレキシブル基板の前記シフト可動部側の取付け部に、動きの自由度を持たせるよう、直線部と曲げ部とを設けたレンズ鏡筒とするものである。
0006
[Means for solving problems]
In order to achieve the above object, the present invention includes a plurality of lens groups, and a lens having a shift movable portion configured to move some of the lens groups in parallel in a plane perpendicular to the optical axis. In the lens barrel, a straight portion and a bent portion so that the attachment portion on the shift movable portion side of the flexible substrate connected between the fixed portion of the lens barrel and the shift movable portion has a degree of freedom of movement. It is a lens barrel provided with and.

22Pは光軸に対して放射方向に2極に着磁された検出用磁石、23Pは検出用磁石22Pの光軸方向前側の磁束を閉じる為のヨークであり、両者はシフト鏡筒15に固定されている。24Pは磁束密度を電気信号に変換するホール素子であり、センサベース17に位置決め固定されている。以上の構成により位置検出手段を成している。 22P is a detection magnet magnetized to two poles in the radial direction with respect to the optical axis, 23P is a yoke for closing the magnetic flux on the front side of the detection magnet 22P in the optical axis direction, and both are fixed to the shift lens barrel 15. Has been done. Reference numeral 24P is a Hall element that converts the magnetic flux density into an electric signal, and is positioned and fixed to the sensor base 17. The position detecting means is formed by the above configuration.

25はコイル20P及びホール素子24P電気的に外部回路と接続させるための可撓性を有するフレキシブル基板であり、折り返し部25aで二つに折り返され(図4では25aの部分で二つに分けて描いている)、実装部26Pの光軸方向の前側にはホール素子24Pが実装されている。また、折り返された部分はさらに3個所の曲げを介して先端部27Pに至り、その一部に形成された穴部28P、シフト鏡筒15に形成されたピン29Pにピン周りに回転自在に嵌合固定され、先端部27Pに設けられたランド部30P及び31Pにコイル20Pの両端子がそれぞれ半田付けされる。32はフレキシブル基板25をセンサベース17に固定する為の押さえ板であり、ビス1本によりセンサベース17に固定されている。 Reference numeral 25 denotes a flexible substrate having flexibility for electrically connecting the coil 20P and the Hall element 24P to an external circuit, which is folded in two at the folded portion 25a (in FIG. 4, the portion 25a is divided into two). The Hall element 24P is mounted on the front side of the mounting portion 26P in the optical axis direction. Moreover, folded portion reaches the tip 27P further through the bending of the three places, the part formed the hole 28P is rotatably to the pin about the pin 29P formed in the shift barrel 15 Both terminals of the coil 20P are soldered to the land portions 30P and 31P provided on the tip portion 27P, respectively. Reference numeral 32 denotes a holding plate for fixing the flexible substrate 25 to the sensor base 17, which is fixed to the sensor base 17 by one screw.

図8(a)は曲げる前の形である。センサベース17に固定される部分には穴33Pと長穴34Pが長手方向に並んでいる。センサベース17には、前記穴33Pと長穴34Pに対応する部分にそれぞれピンが形成されており、穴33Pによりフレキシブル基板25の位置が、長穴34Pにより固定部分からの出だしの方向が、それぞれ決められる。尚、33P及び長穴34P間の曲げ部分は押さえ板32によりセンサベース17に押さえられる。第1の直線部35P及び第2の直線部37Pは曲げ部36Pで曲げられ、略90度の角度を成している。シフト鏡筒15の縦方向及び横方向の動きは、第1の直線部35P及び第2の直線部37Pの面長手方向の撓みにより吸収される。 FIG. 8A shows the shape before bending. Holes 33P and elongated holes 34P are arranged in the longitudinal direction in the portion fixed to the sensor base 17. Pins are formed in the portions of the sensor base 17 corresponding to the holes 33P and the elongated holes 34P, respectively. The holes 33P indicate the position of the flexible substrate 25, and the elongated holes 34P indicate the direction of protrusion from the fixed portion. It can be decided. The bent portion between the hole 33P and the elongated hole 34P is pressed by the holding plate 32 to the sensor base 17. The first straight portion 35P and the second straight portion 37P are bent by the bending portion 36P to form an angle of approximately 90 degrees. The vertical and horizontal movements of the shift lens barrel 15 are absorbed by the deflection of the first straight portion 35P and the second straight portion 37P in the longitudinal direction of the surface.

フレキシブル基板25の先端部27Pは先に説明したようにシフト鏡筒15のピン29P(図3,図4参照)にその穴28Pが嵌合されるが、ピン29Pは段付きピンとなっており先端部27Pは抜けない形状となっている。また、先端部27Pは更にその出っ張り部38P、39Pが、シフト鏡筒15の受け面とある間隔をもって形成されたの下に嵌り込む事によって、ある範囲内でのピン29P周りの回転の自由度を持って外れないようになっている。 The hole 28P of the tip 27P of the flexible substrate 25 is fitted into the pin 29P (see FIGS. 3 and 4) of the shift lens barrel 15 as described above, but the pin 29P is a stepped pin and has a tip. The portion 27P has a shape that does not come off. Further, the tip portion 27P is free to rotate around the pin 29P within a certain range by further fitting the protruding portions 38P and 39P under the eaves formed at a certain distance from the receiving surface of the shift lens barrel 15. It is designed so that it will not come off with a certain degree.

ここで、曲げ部36Pは長手方向に対して正確に90度(図8参照)の角度に曲げられている場合には、先端部27Pの穴部28Pはピン29Pの位置に来るので、フレキシブル基板25の第1の直線部35P及び第2の直線部37Pには不自然な変形は起きないが、曲げ部36Pが長手方向に対して90度からずれて曲げられた場合には、先端部27Pの穴部28Pとピン29Pの位置は光軸方向に曲げが傾いている分だけずれてしまう事になる。このとき先端部27Pが曲げのずれ分だけ回転可能なので、第1の直線部35P及び第2の直線部37Pの捩じれにより、曲げ部36Pの曲げのずれを吸収する事ができる。もしも、先端部27Pが回転できない構造だと、曲げ部36Pの曲げにずれがあると第1の直線部35P及び第2の直線部37Pに容易に曲がらない長手幅方向の曲げ(図8(b)中矢印C及びD)が働いてシフト鏡筒15は光軸方向に強く押え付けられて、摺動部分の摩擦の増加により可動部の動きを悪くしてしまうという問題が発生する。 Here, when the bent portion 36P is bent at an angle of exactly 90 degrees (see FIG. 8) with respect to the longitudinal direction, the hole portion 28P of the tip portion 27P comes to the position of the pin 29P, so that the flexible substrate The first straight portion 35P and the second straight portion 37P of 25 do not undergo unnatural deformation, but when the bent portion 36P is bent at a deviation of 90 degrees with respect to the longitudinal direction, the tip portion 27P The positions of the hole 28P and the pin 29P will be displaced by the amount that the bending is tilted in the optical axis direction. At this time, since the tip portion 27P can rotate by the amount of the bending deviation, the bending deviation of the bent portion 36P can be absorbed by the twist of the first straight portion 35P and the second straight portion 37P. If the tip portion 27P has a structure that cannot rotate , the first straight portion 35P and the second straight portion 37P do not easily bend if the bending portion 36P is bent in the longitudinal width direction (FIG. 8 (b). ) The middle arrows C and D) act to strongly press the shift lens barrel 15 in the optical axis direction, causing a problem that the movement of the movable portion is impaired due to the increase in friction of the sliding portion.

また、センサベース17との固定部分の結合部分の押さえ板32の押えがずれてフレキシブル基板25の出だし方向が若干ずれても、ピン29Pに対する穴部28Pの光軸方向の位置がずれるので、先端部27Pの回転によってフレキシブル基板25による光軸方向の発生力が緩和される。他の構成例として、図11に示すように、ピン29Pに対して穴部28P’のように光軸方向の長穴とすることでも、フレキシブル基板25による光軸方向の発生力が同様に緩和される。 Moreover, even slight deviation onsets direction of the flexible substrate 25 deviates the pressing plate 32 of the presser of the coupling portion of the fixed portion of the sensor base 17, the optical axis of the position of the hole 28P for the pin 29P is displaced, the tip The rotation of the portion 27P relaxes the force generated by the flexible substrate 25 in the optical axis direction. As another configuration example, as shown in FIG. 11, the force generated in the optical axis direction by the flexible substrate 25 is similarly relaxed by making the pin 29P a long hole in the optical axis direction such as the hole 28P'. Will be done.

上記の実施の形態によれば、複数のレンズ群より成り、そのうちの一部のレンズ群(L3)を光軸と垂直な平面内を平行移動するようにしたレンズ鏡筒において、固定部であるセンサベース17と可動部であるシフト鏡筒15(L3も含む)との間に接続されるフレキシブル基板25の前記シフト鏡筒15側の取付け部(図8や図11の先端部27P(27Y))に動きの自由度を、具体的には図8のように回転の自由度もしくは図11のように光軸方向の直線移動の自由度を持たせてフレキシブル基板25による発生力を低減するようにしたことにより、シフト案内部の摩擦力が低減され、シフト可動部をより微小に駆動制御することが可能となる。 According to the above embodiment, it is a fixed portion in a lens barrel composed of a plurality of lens groups and having a part of the lens groups (L3) moved in parallel in a plane perpendicular to the optical axis. The attachment portion of the flexible substrate 25 connected between the sensor base 17 and the shift lens barrel 15 (including L3) which is a movable portion on the shift lens barrel 15 side ( tip portion 27P (27Y) in FIGS. 8 and 11). ) To reduce the force generated by the flexible substrate 25 by giving the degree of freedom of movement, specifically, the degree of freedom of rotation as shown in FIG. 8 or the degree of freedom of linear movement in the optical axis direction as shown in FIG. As a result, the frictional force of the shift guide portion is reduced, and the shift movable portion can be driven and controlled more finely.

JP27780699A 1999-09-30 1999-09-30 Lens barrel Expired - Fee Related JP4500384B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27780699A JP4500384B2 (en) 1999-09-30 1999-09-30 Lens barrel

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Application Number Priority Date Filing Date Title
JP27780699A JP4500384B2 (en) 1999-09-30 1999-09-30 Lens barrel

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JP2001100074A JP2001100074A (en) 2001-04-13
JP2001100074A5 true JP2001100074A5 (en) 2006-11-09
JP4500384B2 JP4500384B2 (en) 2010-07-14

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Publication number Priority date Publication date Assignee Title
JP2005242324A (en) * 2004-01-30 2005-09-08 Pentax Corp Image blur correction device
KR101231489B1 (en) * 2004-08-19 2013-02-07 소니 주식회사 Lens barrel with position detector and imaging device
JP4950425B2 (en) * 2005-02-14 2012-06-13 キヤノン株式会社 Optical device
JP4862303B2 (en) * 2005-07-11 2012-01-25 ソニー株式会社 Method for manufacturing image blur correction apparatus
JP2007212876A (en) * 2006-02-10 2007-08-23 Sony Corp Image blur correcting device, lens device and imaging apparatus
CN101976010B (en) * 2006-08-23 2013-03-13 株式会社理光 Image blur correction device and imaging apparatus equipped therewith
JP5038664B2 (en) * 2006-08-23 2012-10-03 株式会社リコー Image shake correction apparatus and imaging apparatus
JP5140501B2 (en) * 2007-07-27 2013-02-06 富士フイルム株式会社 XY stage and photographing apparatus
JP5157389B2 (en) * 2007-11-28 2013-03-06 株式会社ニコン Position detection device, blur correction device, and optical instrument
JP5140573B2 (en) * 2008-04-30 2013-02-06 日本電産サンキョー株式会社 Optical unit with shake correction function
JP5172024B2 (en) * 2012-02-17 2013-03-27 キヤノン株式会社 Optical device
JP6057839B2 (en) * 2013-06-04 2017-01-11 オリンパス株式会社 Blur correction device
JP2022087973A (en) * 2020-12-02 2022-06-14 キヤノン株式会社 Antivibration unit, lens device, and imaging apparatus

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JPH0756697B2 (en) * 1988-05-13 1995-06-14 シャープ株式会社 Optical pickup objective lens support device
JPH0720645Y2 (en) * 1988-12-26 1995-05-15 オリンパス光学工業株式会社 Lens barrel
JPH0980516A (en) * 1995-09-14 1997-03-28 Nikon Corp Image blurring correction device
JPH09189848A (en) * 1996-01-08 1997-07-22 Canon Inc Zoom lens barrel
JPH10172170A (en) * 1996-10-09 1998-06-26 Sanyo Electric Co Ltd Optical pickup device and its production

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