JP2015059910A5 - - Google Patents
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- JP2015059910A5 JP2015059910A5 JP2013195558A JP2013195558A JP2015059910A5 JP 2015059910 A5 JP2015059910 A5 JP 2015059910A5 JP 2013195558 A JP2013195558 A JP 2013195558A JP 2013195558 A JP2013195558 A JP 2013195558A JP 2015059910 A5 JP2015059910 A5 JP 2015059910A5
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- rotating body
- imaging
- optical element
- movable optical
- rotating
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- 230000003287 optical Effects 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 claims 23
- 230000002093 peripheral Effects 0.000 claims 1
- 230000001681 protective Effects 0.000 description 7
- 239000000758 substrate Substances 0.000 description 4
Description
固定部は、基板１２と、基板１２に固定されたドーム状の保護ケース１と、保護ケース１に固定される軸受け２と、保護ケース１内に設けられる磁気検出素子９，１０及び基板１１と、を備える。 Fixing unit includes a substrate 12, a dome-shaped protective case 1 fixed to the substrate 12, a bearing 2 which is fixed to the protective case 1, a magnetic detection element 9, 10 and the substrate 11 provided in the protective case 1 .
ギヤ４は、保護ケース１の外側において回転軸３と固定されており、図示しない可動光学素子の動きに連動して回転することで、回転軸３を回転させる。ギヤ４は、筒状であり、図１の例では、ギヤ４の中空部に回転軸３の大径部３ａが嵌合されることで、ギヤ４と回転軸３が固定されている。 The gear 4 is fixed to the rotating shaft 3 outside the protective case 1, and rotates the rotating shaft 3 by rotating in conjunction with the movement of a movable optical element (not shown). The gear 4 has a cylindrical shape. In the example of FIG. 1, the gear 4 and the rotary shaft 3 are fixed by fitting the large-diameter portion 3 a of the rotary shaft 3 into the hollow portion of the gear 4.
軸受け２は、保護ケース１に設けられた軸受け孔に外縁部が嵌合されて保護ケース１に固定されている。軸受け２の中空部には回転軸３の小径部３ｂが挿通されており、軸受け２は、この中空部において回転軸３の小径部３ｂを回転自在に支持する。図１の例では、軸受け２の軸方向におけるギヤ４側の端面は回転軸３の大径部３ａに当接している。なお、回転軸３と軸受け２は、互いに擦れた場合に磨耗の少ない材料を選択しておく。 Bearing 2 is fixed to the protective case 1 to the outer edge portion is fitted in a bearing hole provided in the protective case 1. A small diameter portion 3b of the rotary shaft 3 is inserted into a hollow portion of the bearing 2, and the bearing 2 rotatably supports the small diameter portion 3b of the rotary shaft 3 in the hollow portion. In the example of FIG. 1, the end face on the gear 4 side in the axial direction of the bearing 2 is in contact with the large diameter portion 3 a of the rotating shaft 3. The rotary shaft 3 and the bearing 2 are selected from materials that are less worn when rubbed against each other.
図１の説明に戻り、保護ケース１が固定される基板１２には、回転体５に設けられる着磁部５ａと対向する位置に第二の磁気検出素子である磁気検出素子９が設けられる。 Returning to the description of FIG. 1, the substrate 12 to which the protective case 1 is fixed is provided with a magnetic detection element 9 as a second magnetic detection element at a position facing the magnetized portion 5 a provided in the rotating body 5.
Claims (11)
前記回転軸に固定される筒状の回転体と、
前記回転体において前記回転軸の伸びる軸方向における一端面に設けられる第一の着磁部と、
前記第一の着磁部に対向する第一の磁気検出素子と、
前記回転体の側面に、前記回転体の円周方向に沿って設けられる第二の着磁部と、
前記第二の着磁部に対向する第二の磁気検出素子と、を備え、
前記回転体は、前記回転軸に嵌合される第一の回転体と、前記第一の回転体に嵌合される第二の回転体とにより構成され、
前記第一の回転体又は前記第二の回転体に前記第一の着磁部が設けられ、
前記第二の回転体又は前記第一の回転体に前記第二の着磁部が設けられ、
前記第一の回転体は、前記回転軸が挿通される円筒状の第一の回転部と、前記第一の回転部の前記軸方向の端面から前記軸方向に突出しかつ前記回転軸が挿通される筒状の第二の回転部とを含み、
前記第二の回転部を前記軸方向からみたときの面積は、前記第一の回転部を前記軸方向からみたときの面積よりも小さく、
前記第二の回転体は前記第一の回転体の前記第二の回転部に嵌合され、
前記軸方向における前記第一の回転体と前記第二の回転体の間と、前記第一の回転体と前記第二の回転体のうち前記第一の着磁部が設けられる方の回転体の回転方向に沿う側面とに設けられる磁気シールドを備える撮像用可動光学素子の位置検出装置。 A rotating shaft fixed to a gear that rotates in conjunction with the movement of the imaging movable optical element;
A cylindrical rotating body fixed to the rotating shaft;
A first magnetized portion provided on one end surface of the rotating body in the axial direction of the rotating shaft;
A first magnetic sensing element facing the first magnetized portion;
A second magnetized portion provided on a side surface of the rotating body along a circumferential direction of the rotating body;
A second magnetic sensing element facing the second magnetized portion,
The rotating body includes a first rotating body fitted to the rotating shaft and a second rotating body fitted to the first rotating body,
The first magnetized portion is provided on the first rotating body or the second rotating body,
The second magnetized portion is provided on the second rotating body or the first rotating body,
The first rotating body protrudes in the axial direction from a cylindrical first rotating portion through which the rotating shaft is inserted, and an end surface in the axial direction of the first rotating portion, and the rotating shaft is inserted through the first rotating body. A cylindrical second rotating part,
The area when the second rotating part is viewed from the axial direction is smaller than the area when the first rotating part is viewed from the axial direction,
The second rotating body is fitted to the second rotating portion of the first rotating body,
Between the first rotating body and the second rotating body in the axial direction and between the first rotating body and the second rotating body, the rotating body provided with the first magnetized portion. The position detection apparatus of the movable optical element for imaging provided with the magnetic shield provided in the side surface along the rotation direction.
前記第二の回転部は、前記第一の回転部からの突出方向に向かってテーパー状となっている撮像用可動光学素子の位置検出装置。 A position detecting device for an imaging movable optical element according to claim 1,
The position detecting device for a movable optical element for imaging, wherein the second rotating unit is tapered toward a protruding direction from the first rotating unit.
前記第一の回転体の前記軸方向における、前記ギヤと前記回転体との間において前記回転軸を回転自在に支持する軸受け側の端面には凹部が形成され、
前記軸受けの端部が前記凹部に食い込んでいる撮像用可動光学素子の位置検出装置。 A position detecting device for an imaging movable optical element according to claim 1 or 2,
In the axial direction of the first rotating body, a recess is formed on an end surface on the bearing side that rotatably supports the rotating shaft between the gear and the rotating body ,
An apparatus for detecting a position of a movable optical element for imaging, wherein an end of the bearing bites into the recess.
前記第一の回転体に前記第一の着磁部が設けられ、
前記第二の回転体に前記第二の着磁部が設けられる撮像用可動光学素子の位置検出装置。 A position detecting device for an imaging movable optical element according to any one of claims 1 to 3,
The first magnetized portion is provided on the first rotating body,
An apparatus for detecting a position of a movable optical element for imaging, wherein the second magnet is provided on the second rotating body.
前記ギヤと前記回転体との間において前記回転軸を回転自在に支持する軸受けと、
前記ギヤと前記軸受けの間に設けられ、前記回転軸と前記軸受けの前記軸方向における相対移動を規制するための規制部と、を備える撮像用可動光学素子の位置検出装置。 A position detecting device for an imaging movable optical element according to any one of claims 1 to 4,
A bearing that rotatably supports the rotating shaft between the gear and the rotating body;
An apparatus for detecting a position of a movable optical element for imaging, comprising: a restricting portion that is provided between the gear and the bearing and restricts relative movement of the rotating shaft and the bearing in the axial direction.
前記回転軸は、前記ギヤと前記軸受けとの間において、前記軸方向に直交する一方向における長さが前記軸受けの前記回転軸を支持する部分の前記一方向における長さよりも大きい太軸部分を有し、
前記規制部は、前記回転軸の前記太軸部分により構成される撮像用可動光学素子の位置検出装置。 The position detecting device for a movable optical element for imaging according to claim 5,
The rotating shaft has a thick shaft portion between the gear and the bearing in which the length in one direction orthogonal to the axial direction is larger than the length in the one direction of the portion supporting the rotating shaft of the bearing. Have
The restricting unit is a position detecting device for an imaging movable optical element configured by the thick shaft portion of the rotation shaft.
前記回転軸は前記ギヤに嵌合して固定されるものであり、
前記回転軸において前記ギヤが嵌合される部分の前記一方向の長さは、前記規制部の前記一方向の長さと同じである撮像用可動光学素子の位置検出装置。 The position detecting device for an imaging movable optical element according to claim 6,
The rotating shaft is fitted and fixed to the gear,
The position detecting device of the movable optical element for imaging, wherein a length in the one direction of the portion where the gear is fitted on the rotation shaft is the same as a length in the one direction of the restricting portion.
前記規制部の前記一方向の長さは、前記軸受けの外周部の前記一方向における長さよりも小さい撮像用可動光学素子の位置検出装置。 The position detecting device of the movable optical element for imaging according to claim 7,
The position detecting device of the movable optical element for imaging, wherein the length of the restricting portion in the one direction is smaller than the length of the outer peripheral portion of the bearing in the one direction.
前記規制部は、前記ギヤとは異なる材料により構成される撮像用可動光学素子の位置検出装置。 A position detecting device for an imaging movable optical element according to any one of claims 5 to 8,
The restricting unit is a position detection device for an imaging movable optical element made of a material different from that of the gear.
前記撮像用可動光学素子としてのフォーカスレンズ又はズームレンズと、を備えるレンズ装置。 The position detecting device for an imaging movable optical element according to any one of claims 1 to 9,
A lens apparatus comprising: a focus lens or a zoom lens as the imaging movable optical element.
前記撮像用可動光学素子を通して被写体を撮像する撮像素子と、を備える撮像装置。 A lens device according to claim 10;
An imaging device comprising: an imaging element that images a subject through the imaging movable optical element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013195558A JP6053650B2 (en) | 2013-09-20 | 2013-09-20 | Position detecting device, lens device, and imaging device for movable optical element for imaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013195558A JP6053650B2 (en) | 2013-09-20 | 2013-09-20 | Position detecting device, lens device, and imaging device for movable optical element for imaging |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2015059910A JP2015059910A (en) | 2015-03-30 |
| JP2015059910A5 true JP2015059910A5 (en) | 2016-01-14 |
| JP6053650B2 JP6053650B2 (en) | 2016-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013195558A Active JP6053650B2 (en) | 2013-09-20 | 2013-09-20 | Position detecting device, lens device, and imaging device for movable optical element for imaging |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6053650B2 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0239117U (en) * | 1988-09-09 | 1990-03-15 | ||
| JP2001004405A (en) * | 1999-06-22 | 2001-01-12 | Sankyo Seiki Mfg Co Ltd | Magnetic encoder device |
| JP2002014273A (en) * | 2000-06-28 | 2002-01-18 | Fuji Photo Optical Co Ltd | Lens device |
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