JP2011013255A - Lens barrel - Google Patents
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- JP2011013255A JP2011013255A JP2009154708A JP2009154708A JP2011013255A JP 2011013255 A JP2011013255 A JP 2011013255A JP 2009154708 A JP2009154708 A JP 2009154708A JP 2009154708 A JP2009154708 A JP 2009154708A JP 2011013255 A JP2011013255 A JP 2011013255A
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Abstract
Description
本発明は、光学系の光軸の傾きを調整可能なレンズ鏡筒に関するものである。 The present invention relates to a lens barrel capable of adjusting the inclination of an optical axis of an optical system.
従来、複数のレンズ群からなる光学系の像面の倒れを、少なくとも一つの特定レンズ群を倒すことによって矯正する装置が知られている。例えば、レンズを支持するレンズ枠と、レンズ枠を支持する支持フランジと、レンズ枠を支持フランジに固定する固定ねじとを有し、レンズ枠と支持フランジとの間にワッシャを挿入するためのワッシャ挿入溝部を設けたレンズ鏡筒が特許文献１に開示されている。 2. Description of the Related Art Conventionally, there has been known an apparatus that corrects a tilt of an image plane of an optical system including a plurality of lens groups by tilting at least one specific lens group. For example, a washer for inserting a washer between the lens frame and the support flange, having a lens frame for supporting the lens, a support flange for supporting the lens frame, and a fixing screw for fixing the lens frame to the support flange. Patent Document 1 discloses a lens barrel provided with an insertion groove.
しかし、従来のレンズ鏡筒は、レンズ枠を支持フランジに固定している固定ねじが弛んだ場合に、ワッシャがワッシャ挿入溝部から脱落するおそれがあった。 However, in the conventional lens barrel, when the fixing screw that fixes the lens frame to the support flange is loosened, the washer may drop from the washer insertion groove.
そこで本発明は、レンズ枠を固定している固定ねじが弛んだ場合であっても、ワッシャがワッシャ挿入溝部から容易には脱落しないレンズ鏡筒を提供することを目的とする。 Accordingly, an object of the present invention is to provide a lens barrel in which a washer does not easily fall off from a washer insertion groove even when a fixing screw that fixes a lens frame is loosened.
請求項１の発明は、光学系（Ｌ２）を支持する支持部材（７）と、前記支持部材と対向して配置され、前記支持部材を前記光学系の光軸方向に位置決めする位置決め部（６ｂ）と、前記支持部材と前記位置決め部との間隔に配置された板状部材（１０）と、前記支持部材と前記位置決め部の上方に配置され、前記板状部材に対応する位置に開口部（６ｃ）を有する開口部材（６）とを有し、前記板状部材は、前記開口部の下方において、該開口部から前記開口部材側に突出する突出部（１０ｄ）を有することを特徴とするレンズ鏡筒である。 The invention according to claim 1 is a support member (7) for supporting the optical system (L2), and a positioning portion (6b) that is disposed to face the support member and positions the support member in the optical axis direction of the optical system. ), A plate-like member (10) arranged at an interval between the support member and the positioning portion, and an opening (in the position corresponding to the plate-like member, arranged above the support member and the positioning portion. 6c), and the plate-like member has a projecting portion (10d) projecting from the opening to the opening member side below the opening. It is a lens barrel.
請求項２の発明は、請求項１に記載のレンズ鏡筒において、前記支持部材を前記位置決め部に固定するねじ（８）を有し、前記突出部は、前記ねじの締め付け方向に突出していることを特徴とするレンズ鏡筒である。 According to a second aspect of the present invention, in the lens barrel according to the first aspect, the lens barrel includes a screw (8) for fixing the support member to the positioning portion, and the protruding portion protrudes in a tightening direction of the screw. This is a lens barrel.
請求項３の発明は、請求項１または２に記載のレンズ鏡筒において、前記板状部材は、前記開口部に当接する当接部（１０ｃ）を有することを特徴とするレンズ鏡筒である。 A third aspect of the present invention is the lens barrel according to the first or second aspect, wherein the plate-like member has a contact portion (10c) that contacts the opening. .
請求項４の発明は、請求項１から３のいずれか一項に記載のレンズ鏡筒において、前記板状部材は、前記開口部と反対の方向を示す指標（１０ａ）を有することを特徴とするレンズ鏡筒である。 According to a fourth aspect of the present invention, in the lens barrel according to any one of the first to third aspects, the plate-like member has an index (10a) indicating a direction opposite to the opening. This is a lens barrel.
請求項５の発明は、請求項１から４のいずれか一項に記載のレンズ鏡筒において、前記光学系は、前記光学系の光軸に対して交差する方向に移動可能なレンズ（Ｌ２）であることを特徴とするレンズ鏡筒である。 According to a fifth aspect of the present invention, in the lens barrel according to any one of the first to fourth aspects, the optical system is a lens (L2) that is movable in a direction intersecting the optical axis of the optical system. This is a lens barrel.
なお、本発明を分かり易く説明するために一実施例を表す図面の符号に対応づけて説明したが、本発明はこれに限定されるものではなく、後述の実施形態の構成を適宜改良してもよく、また、実施形態に開示された構成の少なくとも一部を他の構成物に代替させても良い。 In addition, in order to explain the present invention in an easy-to-understand manner, the description has been made in association with the reference numerals of the drawings representing one embodiment. However, the present invention is not limited to this, and the configuration of an embodiment described later is appropriately improved. In addition, at least a part of the configuration disclosed in the embodiment may be replaced with another component.
図１は、本発明の実施形態に係るレンズ鏡筒１の断面図である。レンズ鏡筒１は、第１レンズ群Ｌ１と第２レンズ群Ｌ２とで構成される光学系Ｌを有している。また、レンズ鏡筒１は、カメラボディ１００のボディマウント１００ａに着脱可能なレンズマウント２ａと一体的に構成された固定筒２を有している。この固定筒２の内側には、カム溝３ａとカム溝３ｂとが設けられたカム筒３が配置されている。また、固定筒２の外側には、光学系Ｌの光軸Ｏ１回りに回転可能なズーム環９が配置されている。そして、ズーム環９に設けられた連結キー９ａが、固定筒２に設けられた逃げ溝２ｃを介してカム筒３に係合している。これにより、ズーム環９を回転操作することにより、カム筒３を光軸Ｏ１まわりに回転することができる。 FIG. 1 is a cross-sectional view of a lens barrel 1 according to an embodiment of the present invention. The lens barrel 1 has an optical system L composed of a first lens group L1 and a second lens group L2. The lens barrel 1 has a fixed barrel 2 that is formed integrally with a lens mount 2 a that can be attached to and detached from the body mount 100 a of the camera body 100. Inside the fixed cylinder 2, a cam cylinder 3 provided with a cam groove 3a and a cam groove 3b is arranged. A zoom ring 9 that is rotatable around the optical axis O1 of the optical system L is disposed outside the fixed cylinder 2. A connection key 9 a provided on the zoom ring 9 is engaged with the cam cylinder 3 via a relief groove 2 c provided on the fixed cylinder 2. Thereby, the cam cylinder 3 can be rotated around the optical axis O1 by rotating the zoom ring 9.
カム筒３の内側には、摺動筒４が配置されている。この摺動筒４には、固定筒２に光軸Ｏ１方向（図１のＺ軸方向）に沿って設けられた直進溝２ｂと、カム筒３のカム溝３ａとに係合するフォロアピン４ａが設けられており、カム筒３の回転に伴って光学系Ｌの光軸Ｏ１方向（図１のＺ軸方向）に移動する。また、摺動筒４には、第１レンズ群Ｌ１を支持している第１レンズ群支持筒５に設けられたカム溝５ａに係合するフォロアピン４ｃが設けられている。これにより、摺動筒４は、ズーム環９が回転操作されると、第１レンズ群支持筒５と一体となって光学系Ｌの光軸Ｏ１方向（図１のＺ軸方向）に移動して光学系Ｌの焦点距離を変化させる（ズーミング）。なお、このズーミングは、第１レンズ群Ｌ１と後述のブレ補正ユニット７に支持される第２レンズ群Ｌ２との相対位置を変更することにより行う。 A sliding cylinder 4 is disposed inside the cam cylinder 3. The sliding cylinder 4 includes a straight groove 2b provided in the fixed cylinder 2 along the optical axis O1 direction (Z-axis direction in FIG. 1) and a follower pin 4a that engages with the cam groove 3a of the cam cylinder 3. It is provided and moves in the optical axis O1 direction (Z-axis direction in FIG. 1) of the optical system L as the cam barrel 3 rotates. The sliding cylinder 4 is provided with a follower pin 4c that engages with a cam groove 5a provided in the first lens group support cylinder 5 that supports the first lens group L1. Thereby, when the zoom ring 9 is rotated, the sliding cylinder 4 moves integrally with the first lens group support cylinder 5 in the direction of the optical axis O1 of the optical system L (Z-axis direction in FIG. 1). The focal length of the optical system L is changed (zooming). This zooming is performed by changing the relative position between the first lens unit L1 and the second lens unit L2 supported by the shake correction unit 7 described later.
第１レンズ群支持筒５は、摺動筒４における光学系Ｌの物体側（図１の−Ｚ方向）に配置されている。また、第１レンズ群支持筒５は、モーター等の駆動手段を有する駆動機構５ｂにより光軸Ｏ１まわりに回転可能となっている。第１レンズ群支持筒５が回転すると、そのカム溝５ａとフォロアピン４ｃとの係合により、第１レンズ群支持筒５が摺動筒４に対して光軸Ｏ１方向（図１のＺ軸方向）に移動して光学系Ｌの焦点調節を行う。 The first lens group support cylinder 5 is disposed on the object side (the −Z direction in FIG. 1) of the optical system L in the sliding cylinder 4. The first lens group support cylinder 5 can be rotated around the optical axis O1 by a drive mechanism 5b having a drive means such as a motor. When the first lens group support cylinder 5 rotates, the cam groove 5a and the follower pin 4c engage with each other so that the first lens group support cylinder 5 is in the optical axis O1 direction (Z-axis direction in FIG. 1) with respect to the sliding cylinder 4. ) To adjust the focus of the optical system L.
摺動筒４の内側には、光学系Ｌによる像のブレを補正するブレ補正ユニット７を支持する支持筒６が配置されている。支持筒６には、ブレ補正ユニット７を光軸Ｏ１方向（図１のＺ軸方向）に位置決めする位置決め部６ｂが支持筒６の内側に突出して設けられている。この位置決め部６ｂには、ブレ補正ユニット７がねじ８によって固定されている。また、支持筒６の外側には、フォロアピン６ａが突出して設けられている。このフォロアピン６ａは、摺動筒４に設けられている逃げ溝４ｂを介して、カム筒３のカム溝３ｂと固定筒２の直進溝２ｂとに係合している。これにより、ズーム環９が回転操作されると、支持筒６は、光軸Ｏ１方向（図１のＺ軸方向）にブレ補正ユニット７と一体となって移動する。 Inside the sliding cylinder 4, a support cylinder 6 that supports a blur correction unit 7 that corrects image blur due to the optical system L is disposed. The support cylinder 6 is provided with a positioning portion 6b for positioning the blur correction unit 7 in the optical axis O1 direction (Z-axis direction in FIG. 1) so as to protrude inside the support cylinder 6. A blur correction unit 7 is fixed to the positioning portion 6b with a screw 8. Further, a follower pin 6 a protrudes from the outside of the support cylinder 6. The follower pin 6 a is engaged with the cam groove 3 b of the cam cylinder 3 and the rectilinear groove 2 b of the fixed cylinder 2 through a relief groove 4 b provided in the sliding cylinder 4. Thus, when the zoom ring 9 is rotated, the support cylinder 6 moves integrally with the shake correction unit 7 in the optical axis O1 direction (Z-axis direction in FIG. 1).
ブレ補正ユニット７は、第２レンズ群Ｌ２を光軸Ｏ１に対して交差する方向（図１のＸ軸方向、Ｙ軸方向）に移動可能に支持している。また、ブレ補正ユニット７には、第２レンズ群Ｌ２を光軸Ｏ１に対して交差する方向に駆動する駆動手段７ａが設けられている。したがって、ブレ補正ユニット７に設けられた駆動手段７ａによって第２レンズ群Ｌ２を駆動して光学系Ｌによる像ブレを補正可能となっている。また、ブレ補正ユニット７は、ズーム環９が回転操作されると、支持筒６と一体となって光軸Ｏ１方向（図１のＺ軸方向）に移動してズーミングを行う。 The blur correction unit 7 supports the second lens unit L2 so as to be movable in directions intersecting the optical axis O1 (X-axis direction and Y-axis direction in FIG. 1). The blur correction unit 7 is provided with driving means 7a for driving the second lens unit L2 in a direction intersecting the optical axis O1. Therefore, it is possible to correct the image blur due to the optical system L by driving the second lens unit L2 by the driving means 7a provided in the blur correction unit 7. Further, when the zoom ring 9 is rotated, the shake correction unit 7 moves in the direction of the optical axis O1 (Z-axis direction in FIG. 1) together with the support cylinder 6 to perform zooming.
図２は、図１の支持筒６を示す図である。支持筒６の位置決め部６ｂとブレ補正ユニット７との間隔には、ワッシャ状部材１０が配置されている。ワッシャ状部材１０は、第２レンズ群Ｌ２の光軸Ｏ２方向（図２のＺ軸方向）に厚みを有しており、この厚みによりブレ補正ユニット７の位置決め部６ｂに対する位置を調整可能となっている。 FIG. 2 is a view showing the support cylinder 6 of FIG. A washer-like member 10 is disposed in the space between the positioning portion 6 b of the support cylinder 6 and the shake correction unit 7. The washer-like member 10 has a thickness in the direction of the optical axis O2 (the Z-axis direction in FIG. 2) of the second lens group L2, and the position of the shake correction unit 7 with respect to the positioning portion 6b can be adjusted by this thickness. ing.
また、支持筒６には、ワッシャ状部材１０に対応する位置に開口部６ｃが設けられている。ワッシャ状部材１０は、この開口部６ｃを介して支持筒６の位置決め部６ｂとブレ補正ユニット７との間隔に挿脱可能となっている。 The support cylinder 6 is provided with an opening 6 c at a position corresponding to the washer-like member 10. The washer-like member 10 can be inserted / removed at an interval between the positioning portion 6b of the support cylinder 6 and the shake correction unit 7 through the opening 6c.
図３は、図２の支持筒６のＡ−Ａ断面を示す図である。支持筒６には、円周方向の３箇所に略等間隔で開口部６ｃが設けられており、各々の開口部６ｃにワッシャ状部材１０が挿入されている。また、ワッシャ状部材１０には、ねじ８の軸８ａに係合する切欠部１０ｂが設けられている。 FIG. 3 is a view showing an AA cross section of the support cylinder 6 of FIG. The support cylinder 6 is provided with openings 6c at substantially equal intervals at three locations in the circumferential direction, and a washer-like member 10 is inserted into each of the openings 6c. Further, the washer-like member 10 is provided with a notch portion 10 b that engages with the shaft 8 a of the screw 8.
図４は、図２のＡ−Ａ断面であって、ワッシャ状部材１０が支持筒６の位置決め部６ｂとブレ補正ユニット７との間隔に挿入された直後の状態（第１状態）を示す図である。ワッシャ状部材１０は、切欠部１０ｂがねじ８の軸８ａに係合した状態において、軸８ａまわりに回転可能となっている。そのため、ワッシャ状部材１０は、ねじ８の軸８ａまわりに回転されると、図５に示す状態（第２状態）に変移することができる。 4 is a cross-sectional view taken along the line AA in FIG. 2 and shows a state (first state) immediately after the washer-like member 10 is inserted into the gap between the positioning portion 6b of the support cylinder 6 and the shake correction unit 7. FIG. It is. The washer-like member 10 is rotatable around the shaft 8a when the notch 10b is engaged with the shaft 8a of the screw 8. Therefore, when the washer-like member 10 is rotated around the axis 8a of the screw 8, it can be changed to the state shown in FIG. 5 (second state).
なお、ワッシャ状部材１０には、ワッシャ状部材１０の開口部６ｃへの挿入方向（開口部６ｃと反対の方向）を示した指標１０ａが設けられている。 The washer-like member 10 is provided with an indicator 10a indicating the direction of insertion of the washer-like member 10 into the opening 6c (the direction opposite to the opening 6c).
図５は、図２の支持筒６のＡ−Ａ断面であって、ワッシャ状部材１０がねじ８の軸８ａまわりに回転された状態（第２状態）を示す図である。ワッシャ状部材１０には、ワッシャ状部材１０の回転を規制する回転規制部１０ｃが設けられている。この回転規制部１０ｃは、支持筒６の開口部６ｃに当接してワッシャ状部材１０の回転を規制している。これにより、ワッシャ状部材１０が支持筒６の内側に脱落するのを防止している。 FIG. 5 is a cross-sectional view taken along the line AA of the support cylinder 6 in FIG. 2 and shows a state (second state) in which the washer-like member 10 is rotated around the shaft 8a of the screw 8. The washer-like member 10 is provided with a rotation restricting portion 10 c that restricts the rotation of the washer-like member 10. The rotation restricting portion 10 c is in contact with the opening 6 c of the support cylinder 6 and restricts the rotation of the washer-like member 10. As a result, the washer-like member 10 is prevented from falling off inside the support tube 6.
また、ワッシャ状部材１０は突出部１０ｄを有している。この突出部１０ｄは、支持筒６の開口部６ｃの下方において、開口部６ｃから支持筒６側（図５の−Ｘ方向）に突出している。これにより、ワッシャ状部材１０が、開口方向（図５の＋Ｙ方向）に移動して支持筒６の外側に脱落するのを防止している。 The washer-like member 10 has a protruding portion 10d. The protrusion 10d protrudes from the opening 6c toward the support cylinder 6 (in the −X direction in FIG. 5) below the opening 6c of the support cylinder 6. This prevents the washer-like member 10 from moving to the opening direction (+ Y direction in FIG. 5) and dropping out of the support tube 6.
また、ワッシャ状部材１０に設けられた切欠部１０ｂの両側の脚部１０ｅは、図５に示すワッシャ状部材１０の第２状態において、開口方向（図５の＋Ｙ方向）に関して、ねじ８の軸８ａに係合している。これによっても、ワッシャ状部材１０が、開口方向（図５の＋Ｙ方向）に移動して支持筒６の外側に脱落するのを防止している。 Further, the leg portions 10e on both sides of the notch portion 10b provided in the washer-like member 10 are arranged so that the shaft of the screw 8 is in the opening direction (+ Y direction in FIG. 5) in the second state of the washer-like member 10 shown in FIG. 8a is engaged. This also prevents the washer-like member 10 from moving to the opening direction (+ Y direction in FIG. 5) and dropping out of the support tube 6.
なお、ワッシャ状部材１０とねじ８とを磁性材料で構成し、少なくとも一方が磁性を帯びた状態にしておくことで、ワッシャ状部材１０とねじ８との間に働く磁力によってワッシャ状部材１０がねじ８の軸８ａから離れ難くなるようにしてもよい。 The washer-like member 10 and the screw 8 are made of a magnetic material, and at least one of them is magnetized, so that the washer-like member 10 is caused by the magnetic force acting between the washer-like member 10 and the screw 8. It may be difficult to separate from the shaft 8a of the screw 8.
次に、第２レンズ群Ｌ２の光軸Ｏ２の傾きの調整方法について説明する。 Next, a method for adjusting the inclination of the optical axis O2 of the second lens unit L2 will be described.
第２レンズ群Ｌ２の光軸Ｏ２の傾きの調整（以下、チルト調整と称す）は、支持筒６の位置決め部６ｂと第２レンズ群Ｌ２を支持するブレ補正ユニット７との間隔に、厚みを適宜選択してワッシャ状部材１０を挿入することで行われる。 The adjustment of the tilt of the optical axis O2 of the second lens unit L2 (hereinafter referred to as tilt adjustment) is performed by adjusting the thickness between the positioning portion 6b of the support tube 6 and the blur correction unit 7 that supports the second lens unit L2. It is performed by selecting the appropriate one and inserting the washer-like member 10.
まず、支持筒６の位置決め部６ｂにブレ補正ユニット７を固定しているねじ８が弛んだ状態で、ワッシャ状部材１０を支持筒６の開口部６ｃを介して位置決め部６ｂとブレ補正ユニット７との間隔に挿入する。このとき、ワッシャ状部材１０を指標１０ａの方向に沿って開口部６ｃに挿入することで、ワッシャ状部材１０の切欠部１０ｂが、ねじ８の軸８ａに係合する（図４参照）。次に、棒状部材等を使用して支持筒６の外側から開口部６ｃを介してワッシャ状部材１０を回転させ、ワッシャ状部材１０を第１状態（図４参照）から第２状態（図５参照）に変移させる。その後、ねじ８を締め付けて、支持筒６の位置決め部６ｂにブレ補正ユニット７をワッシャ状部材１０とともに固定する。 First, in the state where the screw 8 that fixes the shake correction unit 7 to the positioning portion 6b of the support cylinder 6 is loosened, the washer-like member 10 is inserted into the positioning portion 6b and the shake correction unit 7 through the opening 6c of the support cylinder 6. Insert at an interval. At this time, by inserting the washer-like member 10 into the opening 6c along the direction of the index 10a, the notch 10b of the washer-like member 10 is engaged with the shaft 8a of the screw 8 (see FIG. 4). Next, the washer-like member 10 is rotated from the outside of the support cylinder 6 through the opening 6c using a rod-like member or the like, and the washer-like member 10 is changed from the first state (see FIG. 4) to the second state (FIG. 5). To see). Thereafter, the screw 8 is tightened to fix the shake correction unit 7 together with the washer-like member 10 to the positioning portion 6 b of the support cylinder 6.
なお、ねじ８の締め付け動作に伴ってワッシャ状部材１０が第２状態から第１状態に戻ってしまわないように、ねじ８の締め付け方向とワッシャ状部材１０が第１状態から第２状態へ変移する際の移動方向とを同じにするのが好ましい。この場合、ワッシャ状部材１０の突出部１０ｄは、第２状態において、ねじ８の締め付け方向に突出する。 The tightening direction of the screw 8 and the washer-like member 10 are changed from the first state to the second state so that the washer-like member 10 does not return from the second state to the first state with the tightening operation of the screw 8. It is preferable that the moving direction at the same time is the same. In this case, the protruding portion 10d of the washer-like member 10 protrudes in the tightening direction of the screw 8 in the second state.
このようにして、適宜厚みを選択したワッシャ状部材１０を支持筒６の位置決め部６ｂとブレ補正ユニット７との間隔に挿入すると、ワッシャ状部材１０の厚みに応じて位置決め部６ｂとブレ補正ユニット７との間隔が変化するため、ブレ補正ユニット７に支持される第２レンズ群Ｌ２の光軸Ｏ２の傾きを調整することができる。 In this way, when the washer-like member 10 having an appropriate thickness selected is inserted into the space between the positioning portion 6b of the support cylinder 6 and the shake correction unit 7, the positioning portion 6b and the shake correction unit according to the thickness of the washer-like member 10. 7 changes, the inclination of the optical axis O2 of the second lens unit L2 supported by the shake correction unit 7 can be adjusted.
なお、一度の調整作業で良好にチルト調整できない場合には、ワッシャ状部材１０の厚みとワッシャ状部材１０を挿入する箇所（開口部６ｃ）とを適宜変更して再度、調整作業を行う。 When the tilt adjustment cannot be satisfactorily performed by a single adjustment operation, the adjustment operation is performed again by appropriately changing the thickness of the washer-like member 10 and the portion (opening 6c) where the washer-like member 10 is inserted.
以上説明した実施形態に限定されることなく、種々の変形や変更が可能であって、それらも本発明の均等の範囲内である。 The present invention is not limited to the embodiment described above, and various modifications and changes are possible, and these are also within the equivalent scope of the present invention.
本実施形態において、ブレ補正ユニット７に支持される第２レンズ群Ｌ２の光軸Ｏ２の傾きを調整する例を示したが、調整の対象となるレンズ群が、必ずしもブレ補正ユニットに支持されている必要はない。例えば、支持筒６の位置決め部６ｂに、レンズを支持するレンズ支持枠が固定されるようなレンズ鏡筒であっても本発明を実施することは可能である。 In the present embodiment, the example in which the inclination of the optical axis O2 of the second lens group L2 supported by the shake correction unit 7 is adjusted has been described. However, the lens group to be adjusted is not necessarily supported by the shake correction unit. There is no need to be. For example, the present invention can be implemented even with a lens barrel in which a lens support frame that supports a lens is fixed to the positioning portion 6b of the support cylinder 6.
また、本実施形態において、支持筒６に設けられた３箇所の開口部６ｃの各々にワッシャ状部材１０が挿入されている例を示したが、必ずしも全ての開口部６ｃにワッシャ状部材１０が挿入されている必要はない。すなわち、支持筒６に設けられた複数の開口部６ｃのうち、少なくとも一箇所にワッシャ状部材１０を挿入することでチルト調整可能である。 Moreover, in this embodiment, although the example in which the washer-like member 10 was inserted in each of the three opening parts 6c provided in the support cylinder 6 was shown, the washer-like member 10 is not necessarily in all the opening parts 6c. It does not have to be inserted. That is, the tilt adjustment can be performed by inserting the washer-like member 10 into at least one of the plurality of openings 6 c provided in the support cylinder 6.
また、本実施形態において、支持筒６の３箇所に開口部６ｃを設けた例を説明したが、支持筒６に設ける開口部６ｃの数がこれに限定されないのは言うまでもない。例えば、開口部６ｃの数を６箇所に増やして、チルト調整の自由度を高めるようにしてもよい。 Moreover, in this embodiment, although the example which provided the opening part 6c in three places of the support cylinder 6 was demonstrated, it cannot be overemphasized that the number of the opening parts 6c provided in the support cylinder 6 is not limited to this. For example, the number of openings 6c may be increased to six to increase the degree of freedom of tilt adjustment.
以上説明した実施形態によれば、レンズ鏡筒１は、第２レンズ群Ｌ２を支持するブレ補正ユニット７と、ブレ補正ユニット７と対向して配置され、ブレ補正ユニット７を第２レンズ群Ｌ２の光軸方向に位置決めする位置決め部６ｂと、ブレ補正ユニット７と位置決め部６ｂとの間隔に配置されたワッシャ状部材１０と、ブレ補正ユニット７と位置決め部６ｂの上方に配置され、ワッシャ状部材１０に対応する位置に開口部６ｃを有する支持筒６とを有し、ワッシャ状部材１０は、開口部６ｃの下方において、開口部６ｃから支持筒６側に突出する突出部１０ｄを有するので、位置決め部６ｂにブレ補正ユニット７を固定しているねじ８が弛んだ場合であっても、ワッシャ状部材１０が位置決め部６ｂとブレ補正ユニット７との間隔に配置された位置から容易には脱落しないという効果を得ることができる。 According to the embodiment described above, the lens barrel 1 is disposed to face the shake correction unit 7 that supports the second lens group L2 and the shake correction unit 7, and the shake correction unit 7 is disposed in the second lens group L2. A positioning portion 6b for positioning in the optical axis direction, a washer-like member 10 disposed at an interval between the blur correction unit 7 and the positioning portion 6b, and a washer-like member disposed above the blur correction unit 7 and the positioning portion 6b. 10 and a support cylinder 6 having an opening 6c at a position corresponding to 10, and the washer-like member 10 has a protrusion 10d that protrudes from the opening 6c toward the support cylinder 6 below the opening 6c. Even when the screw 8 fixing the shake correction unit 7 to the positioning portion 6b is loosened, the washer-like member 10 is arranged at the interval between the positioning portion 6b and the shake correction unit 7. The easily from the position it is possible to obtain an effect that not fall.
６ 支持筒
６ｂ 位置決め部
６ｃ 開口部
７ ブレ補正ユニット
８ ねじ
８ａ 軸
１０ ワッシャ状部材
１０ａ 指標
１０ｂ 切欠部
１０ｃ 回転規制部
１０ｄ 突出部
Ｌ２ 第２レンズ群
6 Support cylinder 6b Positioning portion 6c Opening portion 7 Shake correction unit 8 Screw 8a Shaft 10 Washer-like member 10a Index 10b Notch portion 10c Rotation restricting portion 10d Protruding portion L2 Second lens group
Claims (5)
前記支持部材と対向して配置され、前記支持部材を前記光学系の光軸方向に位置決めする位置決め部と、
前記支持部材と前記位置決め部との間隔に配置された板状部材と、
前記支持部材と前記位置決め部の上方に配置され、前記板状部材に対応する位置に開口部を有する開口部材とを有し、
前記板状部材は、前記開口部の下方において、該開口部から前記開口部材側に突出する突出部を有することを特徴とするレンズ鏡筒。 A support member for supporting the optical system;
A positioning portion that is disposed to face the support member and positions the support member in the optical axis direction of the optical system;
A plate-like member arranged at an interval between the support member and the positioning portion;
An opening member disposed above the support member and the positioning portion and having an opening at a position corresponding to the plate-like member;
The plate-like member has a protruding portion that protrudes from the opening to the opening member side below the opening.
前記支持部材を前記位置決め部に固定するねじを有し、
前記突出部は、前記ねじの締め付け方向に突出していることを特徴とするレンズ鏡筒。 The lens barrel according to claim 1,
A screw for fixing the support member to the positioning portion;
The lens barrel according to claim 1, wherein the protruding portion protrudes in a tightening direction of the screw.
前記板状部材は、前記開口部に当接する当接部を有することを特徴とするレンズ鏡筒。 The lens barrel according to claim 1 or 2,
The lens barrel, wherein the plate-like member has an abutting portion that abuts on the opening.
前記板状部材は、前記開口部と反対の方向を示す指標を有することを特徴とするレンズ鏡筒。 In the lens barrel according to any one of claims 1 to 3,
The lens barrel, wherein the plate member has an index indicating a direction opposite to the opening.
前記光学系は、前記光学系の光軸に対して交差する方向に移動可能なレンズであることを特徴とするレンズ鏡筒。 In the lens barrel according to any one of claims 1 to 4,
The lens barrel according to claim 1, wherein the optical system is a lens that is movable in a direction intersecting an optical axis of the optical system.
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| JP2013076920A (en) * | 2011-09-30 | 2013-04-25 | Nidec Copal Corp | Optical device |
| JP2014026090A (en) * | 2012-07-26 | 2014-02-06 | Xacti Corp | Lens unit and imaging device including the same |
| JP2014174427A (en) * | 2013-03-12 | 2014-09-22 | Hoya Corp | Inclination adjustment mechanism of optical element |
| WO2019230674A1 (en) * | 2018-05-30 | 2019-12-05 | パナソニックＩｐマネジメント株式会社 | Actuator, camera device, and manufacturing method |
| JP2021063926A (en) * | 2019-10-15 | 2021-04-22 | エスゼット ディージェイアイ テクノロジー カンパニー リミテッドＳｚ Ｄｊｉ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．，Ｌｔｄ | Lens device, imaging apparatus, and mobile body |
| CN113933950A (en) * | 2021-10-26 | 2022-01-14 | 中国科学院光电技术研究所 | Optical element's dress alignment device |
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| JPH0623013U (en) * | 1992-08-26 | 1994-03-25 | 旭光学工業株式会社 | Optical performance correction device for optical system |
| JP2002244010A (en) * | 2001-02-21 | 2002-08-28 | Nikon Corp | Blur correcting device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013076920A (en) * | 2011-09-30 | 2013-04-25 | Nidec Copal Corp | Optical device |
| JP2014026090A (en) * | 2012-07-26 | 2014-02-06 | Xacti Corp | Lens unit and imaging device including the same |
| JP2014174427A (en) * | 2013-03-12 | 2014-09-22 | Hoya Corp | Inclination adjustment mechanism of optical element |
| WO2019230674A1 (en) * | 2018-05-30 | 2019-12-05 | パナソニックＩｐマネジメント株式会社 | Actuator, camera device, and manufacturing method |
| JP2021063926A (en) * | 2019-10-15 | 2021-04-22 | エスゼット ディージェイアイ テクノロジー カンパニー リミテッドＳｚ Ｄｊｉ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．，Ｌｔｄ | Lens device, imaging apparatus, and mobile body |
| CN113933950A (en) * | 2021-10-26 | 2022-01-14 | 中国科学院光电技术研究所 | Optical element's dress alignment device |
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