JP2020190658A - Optical element drive device, camera device, and electronic apparatus - Google Patents
Optical element drive device, camera device, and electronic apparatus Download PDFInfo
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- 230000003287 optical effect Effects 0.000 title claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims description 47
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 description 9
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 239000000499 gel Substances 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/1805—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for prisms
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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Abstract
Description
本発明は、スマートフォン等の電子機器に用いられる光学素子駆動装置、カメラ装置、及び電子機器に関する。 The present invention relates to an optical element driving device, a camera device, and an electronic device used in an electronic device such as a smartphone.
スマートフォン等の電子機器に搭載されるカメラ装置の中には、像ブレ補正用のプリズムとそれを揺動可能に保持する部材とを有し、被写体からの光がプリズムによる反射を経てからカメラの撮像面に導光される構成のものがある。この種のカメラ装置に関わる技術を開示した文献として、特許文献1がある。特許文献1に記載された潜望式撮影モジュールは、プリズムと、プリズムを載置するテーパ面をもったプリズム台座と、プリズム台座の軸孔に挿通される支持軸と、プリズム台座の駆動力を生み出す磁石及びコイルと、支持軸の両端を揺動自在に支持する筐体とを有する。この潜望式撮影モジュールでは、磁石及びコイルの駆動力により、プリズム台座及びその支持面上のプリズムが、支持軸を揺動軸として揺動するようになっている。 Some camera devices mounted on electronic devices such as smartphones have a prism for image blur correction and a member that holds it swingably, and after the light from the subject is reflected by the prism, the camera Some are configured to guide light to the imaging surface. Patent Document 1 is a document that discloses a technique related to this type of camera device. The latent imaging module described in Patent Document 1 has a prism, a prism pedestal having a tapered surface on which the prism is placed, a support shaft inserted into a shaft hole of the prism pedestal, and a driving force of the prism pedestal. It has a magnet and a coil to be produced, and a housing that swingably supports both ends of the support shaft. In this latent imaging module, the prism pedestal and the prism on the support surface thereof swing with the support shaft as the swing shaft by the driving force of the magnet and the coil.
しかしながら、特許文献1の潜望式撮影モジュールにおける支持軸は、筐体の左右両側壁に固定される支持軸受に固定され、プリズム台座とプリズムは、支持軸に対して揺動自在に支持されるというものであった。このため、プリズム台座とプリズムが、支持軸に沿って筐体の側壁の方に移動し、衝突する恐れがあった。 However, the support shaft in the latent imaging module of Patent Document 1 is fixed to the support bearings fixed to the left and right side walls of the housing, and the prism pedestal and the prism are swingably supported with respect to the support shaft. It was that. Therefore, the prism pedestal and the prism may move toward the side wall of the housing along the support shaft and collide with each other.
本発明は、このような課題に鑑みてなされたものであり、光学部材とそれを支持する部材が支持軸に沿って移動して他の部分に衝突し難い光学素子駆動装置、カメラ装置、及び電子機器を提供することを目的とする。 The present invention has been made in view of such a problem, and an optical element driving device, a camera device, and an optical element driving device, a camera device, and an optical element driving device, a camera device, and an optical member in which an optical member and a member supporting the optical member do not easily collide with other parts by moving along a support shaft. The purpose is to provide electronic devices.
上記課題を解決するために、本発明の好適な態様である光学素子駆動装置は、光学素子を支持する支持部を有する保持部材と、前記保持部材に固定される支持軸と、前記支持軸をその支持孔内で揺動自在に支持する固定部と、を備え、前記支持軸は前記支持孔の一端から途中まで嵌め入れられており、前記固定部の他の部分が前記支持孔の他端側を塞いでいることを特徴とする。 In order to solve the above problems, the optical element driving device according to a preferred embodiment of the present invention includes a holding member having a support portion for supporting the optical element, a support shaft fixed to the holding member, and the support shaft. A fixing portion that swingably supports the support hole is provided, the support shaft is fitted halfway from one end of the support hole, and the other portion of the fixing portion is the other end of the support hole. It is characterized by blocking the side.
この態様において、前記支持軸の外周面と前記支持孔の内周面との間に樹脂材料が充填されていてもよい。 In this embodiment, a resin material may be filled between the outer peripheral surface of the support shaft and the inner peripheral surface of the support hole.
また、前記固定体は、貫通孔を有して対向する2つの側板を有する筐体と、前記支持孔を有する支持軸受と、を備え、前記支持軸受は、円柱状の小径部と前記小径部よりも大きな直径をもった円柱状の大径部とを有し、前記支持軸受の小径部が、前記筐体の2つの前記側板の前記貫通孔に挿入されて固定され、前記支持軸の両端部は、前記支持軸受の前記支持孔の一端から途中まで嵌め入れられていてもよい。 Further, the fixed body includes a housing having two side plates having through holes and facing each other, and a support bearing having the support holes, and the support bearing has a columnar small diameter portion and the small diameter portion. It has a columnar large diameter portion having a larger diameter, and the small diameter portion of the support bearing is inserted into and fixed to the through holes of the two side plates of the housing, and both ends of the support shaft. The portion may be fitted halfway from one end of the support hole of the support bearing.
また、前記固定体は、前記筐体を挟んで対向する2つの板を有して装置本体を覆うケースを具備し、前記支持軸受の大径部の端面が、それぞれ前記板に当接しており、前記2つの板の当該当接部分が、前記支持孔を塞いでいてもよい。 Further, the fixed body includes a case having two plates facing each other with the housing interposed therebetween and covering the apparatus main body, and the end faces of the large diameter portions of the support bearings are in contact with the plates, respectively. , The contact portion of the two plates may close the support hole.
本発明の別の好適な態様であるカメラ装置は、上記の光学素子駆動装置を備えたものである。 Another preferred embodiment of the present invention is a camera device including the above-mentioned optical element driving device.
本発明の別の好適な態様である電子機器は、上記のカメラ装置を備えたものである。 Another preferred embodiment of the present invention is an electronic device including the above-mentioned camera device.
本発明では、保持部材に固定される支持軸と、支持軸をその支持孔内で揺動自在に支持する固定部と、を備え、支持軸は支持孔の一端から途中まで嵌め入れられており、固定部の他の部分が支持孔の他端側を塞いでいる。固定部の支持孔内における支持軸と固定部との間の空間は、気密状態になり、この空間に空気溜まりができ、この空気溜まりが空気ばねとして作用する。よって、保持部材に固定される支持軸が、軸方向に移動しても支持孔の他端側を塞いでいる固定部の部分には衝突しにくく、仮に衝突したとしてもその衝撃は小さなものとなる。従って、本発明によると、光学素子とそれを支持する部材が支持軸に沿って移動して他の部分に衝突し難い光学素子駆動装置を提供することができる。 In the present invention, a support shaft fixed to the holding member and a fixing portion for swingably supporting the support shaft in the support hole are provided, and the support shaft is fitted halfway from one end of the support hole. , The other part of the fixing part closes the other end side of the support hole. The space between the support shaft and the fixed portion in the support hole of the fixed portion becomes airtight, and an air pool is formed in this space, and this air pool acts as an air spring. Therefore, even if the support shaft fixed to the holding member moves in the axial direction, it is difficult to collide with the fixed portion that closes the other end side of the support hole, and even if it collides, the impact is small. Become. Therefore, according to the present invention, it is possible to provide an optical element driving device in which an optical element and a member supporting the optical element move along a support shaft and do not easily collide with other portions.
以下、図面を参照しつつ本発明の実施形態を説明する。図1に示すように、カメラ装置1は、スマートフォン400の筐体の背面の角に埋め込まれている。カメラ装置1は、光学素子であるプリズム30及びレンズ体9と、プリズム駆動装置3と、レンズ駆動装置8と、被写体からプリズム30及びレンズ体9を経由して導かれる光を光電変換する画像センサ100と、を有する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the camera device 1 is embedded in the back corner of the housing of the smartphone 400. The camera device 1 is an image sensor that photoelectrically converts light guided from a subject through the prism 30 and the lens body 9, the prism 30 and the lens body 9, which are optical elements, the prism drive device 3, the lens drive device 8, and the subject. It has 100 and.
以降は、レンズ体9の光軸に沿った光軸方向を適宜X方向という。また、X方向と直交し被写体からの光がプリズム30に入射する一方向を適宜Z方向といい、X方向及びZ方向の両方と直交する方向を適宜Y方向という。また、X方向の、レンズ体9から見てプリズム30のある側を上側と称し、その反対側である画像センサ100側を下側と称する。また、Z方向の、プリズム30から見て被写体の側を前側と称し、その反対側を後側と称する。また、Y方向の一方を左側、他方を右側と称することがある。Z方向がカメラ装置1、プリズム駆動装置3、及びレンズ駆動装置8の厚さ方向であり、後述する固定部の厚さ方向である。 Hereinafter, the direction of the optical axis along the optical axis of the lens body 9 is appropriately referred to as the X direction. Further, one direction orthogonal to the X direction and incident light from the subject onto the prism 30 is appropriately referred to as the Z direction, and a direction orthogonal to both the X direction and the Z direction is appropriately referred to as the Y direction. Further, the side of the prism 30 in the X direction when viewed from the lens body 9 is referred to as the upper side, and the side opposite to the prism 30 is referred to as the lower side. Further, the side of the subject in the Z direction as viewed from the prism 30 is referred to as the front side, and the opposite side thereof is referred to as the rear side. Further, one in the Y direction may be referred to as a left side and the other may be referred to as a right side. The Z direction is the thickness direction of the camera device 1, the prism drive device 3, and the lens drive device 8, and is the thickness direction of the fixed portion described later.
図2及び図4に示すように、カメラ装置1のケース90は、中空な直方体状をなしている。レンズ体9とこれを保持するレンズ駆動装置8、及びプリズム30とこれを保持するプリズム駆動装置3は、X方向に並べて、ケース90内の空間に収められている。プリズム駆動装置3が光学素子駆動装置である。光学素子としては、プリズム30の他、反射鏡等であってもよい。 As shown in FIGS. 2 and 4, the case 90 of the camera device 1 has a hollow rectangular parallelepiped shape. The lens body 9, the lens driving device 8 that holds the lens body 9, the prism 30, and the prism driving device 3 that holds the prism 30 are arranged in the X direction and housed in the space inside the case 90. The prism driving device 3 is an optical element driving device. The optical element may be a reflecting mirror or the like in addition to the prism 30.
図6に示すように、ケース90の前側の板91には開口911があり、後側の板95には開口951がある。開口911は、レンズ体9が通過でき且つプリズム30の入射面31を露出させることができる。前側の開口911には板912が、後側の開口951には板952が、それぞれ装着され、レンズ体9を前後から覆う。開口911に板912が装着された状態において、開口911の上側の部分からは、プリズム30が前側に露出する。ケース90の下側の開口には、ベース941が嵌め込まれる。ベース941には、画像センサ100が、その受光面をレンズ体9に向けて固定される。また、ケース90の上側の開口には、後述するプリズム駆動装置3の筐体10が嵌め込まれて露出している。 As shown in FIG. 6, the plate 91 on the front side of the case 90 has an opening 911, and the plate 95 on the rear side has an opening 951. The opening 911 allows the lens body 9 to pass through and exposes the incident surface 31 of the prism 30. A plate 912 is attached to the front opening 911 and a plate 952 is attached to the rear opening 951 to cover the lens body 9 from the front and back. With the plate 912 mounted on the opening 911, the prism 30 is exposed to the front side from the upper portion of the opening 911. The base 941 is fitted into the opening on the lower side of the case 90. An image sensor 100 is fixed to the base 941 with its light receiving surface facing the lens body 9. Further, the housing 10 of the prism driving device 3 described later is fitted and exposed in the opening on the upper side of the case 90.
レンズ駆動装置8は、レンズ体9を保持すると共に、スマートフォン400の基板から与えられる電気信号によって、レンズ体9をX方向及びY方向に駆動する。図3に示すように、レンズ駆動装置8は、X方向支持スプリング(不図示)と、X方向駆動磁石及びX方向駆動コイル(不図示)、及びY方向支持スプリング(不図示)と、Y方向駆動磁石及びY方向駆動コイル(不図示)を有する。レンズ駆動装置8のX方向駆動コイル又はY方向駆動コイルに電流が供給されると、X方向駆動コイル又はY方向駆動コイルに電磁力が発生し、X方向スプリング又はY方向スプリングの付勢力に抗って、レンズ体9がX方向又はY方向に移動する。レンズ体9のX方向の移動により焦点調整ができ、レンズ体9のY方向の移動により、Y方向の手振れ補正ができる。 The lens driving device 8 holds the lens body 9 and drives the lens body 9 in the X direction and the Y direction by an electric signal given from the substrate of the smartphone 400. As shown in FIG. 3, the lens driving device 8 includes an X-direction support spring (not shown), an X-direction drive magnet and an X-direction drive coil (not shown), a Y-direction support spring (not shown), and a Y-direction. It has a drive magnet and a Y-direction drive coil (not shown). When a current is supplied to the X-direction drive coil or the Y-direction drive coil of the lens drive device 8, an electromagnetic force is generated in the X-direction drive coil or the Y-direction drive coil to resist the urging force of the X-direction spring or the Y-direction spring. Therefore, the lens body 9 moves in the X direction or the Y direction. The focus can be adjusted by moving the lens body 9 in the X direction, and the camera shake correction in the Y direction can be performed by moving the lens body 9 in the Y direction.
プリズム駆動装置3は、プリズム30を保持すると共に、スマートフォン400の基板から与えられる電気信号によって、プリズム30を、Y方向と平行な軸の軸周りに駆動する。これによって、Z方向の手振れ補正ができる。図6及び図7に示すように、プリズム駆動装置3は、FPC(Flexible Printed Circuits)80と、コイル64と、筐体10と、支持軸受26及び27と、保持部材40と、支持軸50と、板ばね70とを有する。ケース90を含めて、FPC80と、コイル64と、筐体10と、支持軸受26及び27と、を総称して、固定部と呼ぶ。 The prism driving device 3 holds the prism 30 and drives the prism 30 around an axis parallel to the Y direction by an electric signal given from the substrate of the smartphone 400. As a result, camera shake correction in the Z direction can be performed. As shown in FIGS. 6 and 7, the prism drive device 3 includes an FPC (Flexible Printed Circuits) 80, a coil 64, a housing 10, support bearings 26 and 27, a holding member 40, and a support shaft 50. , With a leaf spring 70. The FPC 80, the coil 64, the housing 10, and the support bearings 26 and 27, including the case 90, are collectively referred to as a fixed portion.
FPC80は、スマートフォン400の基板からコイル64への電流の供給を中継する役割を果たす部材である。FPC80は、T字状の第1面部81とコの字状の第2面部82とを有する。FPC80の第1面部81は、第2面部82との連結部分においてケース90の後側の板95を間に挟んで折り返されて、ケース90の内部に収容される。即ち、FPC80は、第1面部81と第2面部82によりケース90の後側の板95をZ方向の両側から挟むようにして、ケース90に装着されている。 The FPC 80 is a member that plays a role of relaying the supply of current from the substrate of the smartphone 400 to the coil 64. The FPC 80 has a T-shaped first surface portion 81 and a U-shaped second surface portion 82. The first surface portion 81 of the FPC 80 is folded back with a plate 95 on the rear side of the case 90 sandwiched between the connecting portions with the second surface portion 82, and is housed inside the case 90. That is, the FPC 80 is mounted on the case 90 so that the plate 95 on the rear side of the case 90 is sandwiched between the first surface portion 81 and the second surface portion 82 from both sides in the Z direction.
FPC80の第1面部81の前面の一角には、後側に凹んだ凹部83が設けられている。FPC80の第1面部81には、コイル64が固定されている。コイル64は、X方向に延びる2つの直線部とこれらを繋ぐ2つの半円部とを有する。コイル64の2つの半円部のうち一方の半円部は凹部83を跨いでいる。凹部83の外側部分はコイル64の外側にあり、内側部分はコイル64の内側にある。コイル64の外側の端部は、FPC80の第1面部81に接続され、コイル64の内側の端部は、凹部83を介してコイル64の外側に引き出され、FPC80の第1面部81に接続される。 A recess 83 recessed on the rear side is provided in one corner of the front surface of the first surface portion 81 of the FPC 80. A coil 64 is fixed to the first surface portion 81 of the FPC 80. The coil 64 has two straight portions extending in the X direction and two semicircular portions connecting them. One of the two semicircular portions of the coil 64 straddles the recess 83. The outer portion of the recess 83 is on the outside of the coil 64 and the inner portion is on the inside of the coil 64. The outer end of the coil 64 is connected to the first surface 81 of the FPC 80, and the inner end of the coil 64 is pulled out of the coil 64 through the recess 83 and connected to the first surface 81 of the FPC 80. To.
ケース90内におけるFPC80の第1面部81を前側から覆う位置には、筐体10がある。筐体10は、Y方向に対向する二つの側板16及び17と、二つの側板16及び17間に介在する上板13及び後板15とを有する。二つの側板16及び17の各々の真中には、真円状の貫通孔165及び175が穿設されている。上板13の中央後部にはZ方向に延びる凹部が設けられており、この凹部には後述する保持部材40の凸部431が収容される。後板15には、コイル64が収容される開口151が穿設されている。貫通孔165には、支持軸受26の小径部261が、貫通孔175には、支持軸受27の小径部271が、それぞれ挿入されて固定される。 The housing 10 is located in the case 90 at a position that covers the first surface portion 81 of the FPC 80 from the front side. The housing 10 has two side plates 16 and 17 facing in the Y direction, and an upper plate 13 and a rear plate 15 interposed between the two side plates 16 and 17. Circular through holes 165 and 175 are bored in the middle of each of the two side plates 16 and 17. A concave portion extending in the Z direction is provided in the central rear portion of the upper plate 13, and the convex portion 431 of the holding member 40 described later is accommodated in this concave portion. The rear plate 15 is provided with an opening 151 in which the coil 64 is housed. The small diameter portion 261 of the support bearing 26 is inserted into the through hole 165, and the small diameter portion 271 of the support bearing 27 is inserted into the through hole 175 and fixed.
支持軸受26及び27は、貫通孔165及び175と支持軸50との間に介在し、支持軸50をその支持孔265及び275内で揺動自在に支持し、支持軸50の揺動を補助する部材である。支持軸受26及び27は、貫通孔165及び175と略同じ直径をもった円柱状の小径部261及び271とこれよりも僅かに大きな直径をもった円柱状の大径部262及び272とを有する。支持軸受26及び27には、それぞれ、中心に支持孔265及び275が穿設されている。支持孔265は、支持軸受26の両端面間を貫いており、支持孔275は、支持軸受27の両端面間を貫いている。支持軸受26及び27は、小径部261及び271が貫通孔165及び175に挿入されて筐体10に固定される。 The support bearings 26 and 27 are interposed between the through holes 165 and 175 and the support shaft 50, and swingably support the support shaft 50 in the support holes 265 and 275 to assist the swing of the support shaft 50. It is a member to be bearing. The support bearings 26 and 27 have columnar small diameter portions 261 and 271 having substantially the same diameter as the through holes 165 and 175 and columnar large diameter portions 262 and 272 having a diameter slightly larger than this. .. Support holes 265 and 275 are bored in the centers of the support bearings 26 and 27, respectively. The support hole 265 penetrates between both end faces of the support bearing 26, and the support hole 275 penetrates between both end faces of the support bearing 27. In the support bearings 26 and 27, the small diameter portions 261 and 271 are inserted into the through holes 165 and 175 and fixed to the housing 10.
筐体10内には、プリズム30、保持部材40、及び支持軸50を一体化したものが収められており、保持部材40が、板ばね70を介して筐体10に支持されている。プリズム30は、入射面31、反射面32、出射面34、及びこれらと直交するY方向の両側面36及び37を有する。プリズム30は、入射面31から反射面32に到るZ方向に平行な光軸と反射面32から出射面34に到るX方向に平行な光軸を有する。被写体からプリズム30の入射面31に入射した光は、反射面32において反射し、出射面34を介してレンズ体9に導かれる。 A prism 30, a holding member 40, and a support shaft 50 are integrated in the housing 10, and the holding member 40 is supported by the housing 10 via a leaf spring 70. The prism 30 has an incident surface 31, a reflecting surface 32, an emitting surface 34, and both side surfaces 36 and 37 in the Y direction orthogonal to these. The prism 30 has an optical axis parallel to the Z direction from the entrance surface 31 to the reflection surface 32 and an optical axis parallel to the X direction from the reflection surface 32 to the emission surface 34. Light incident on the incident surface 31 of the prism 30 from the subject is reflected by the reflecting surface 32 and guided to the lens body 9 via the emitting surface 34.
保持部材40は、プリズム30を保持する役割を果たす部材である。保持部材40は、Y方向に延びる直方体からその略半分を占める三角柱状の部分を切り欠いたような形状をしている。即ち、保持部材40は、直角二等辺三角柱状の中実部41と、中実部41のY方向の端部から直角二等辺三角形状をなして延出してY方向に対向する二つの壁部46及び47と、を有する。保持部材40は、Y方向から見て長方形状をなす。壁部46及び47の中実部41との境界部分には、それぞれ、貫通孔465及び475が設けられている。 The holding member 40 is a member that plays a role of holding the prism 30. The holding member 40 has a shape such that a triangular columnar portion occupying approximately half of the rectangular parallelepiped extending in the Y direction is cut out. That is, the holding member 40 has a right-angled isosceles triangular columnar solid portion 41 and two wall portions that extend in a right-angled isosceles triangle shape from the end of the solid portion 41 in the Y direction and face each other in the Y direction. It has 46 and 47. The holding member 40 has a rectangular shape when viewed from the Y direction. Through holes 465 and 475 are provided at the boundary portions of the wall portions 46 and 47 with the solid portion 41, respectively.
図6に示すように、保持部材40の中実部41における直角三角形の底辺に相当する、前下側方向を向いた端面42は、XY面及びYZ面に対して略45度傾いたテーパ面になっている。端面42において、壁部46及び47との境界部分の互いに離れた各位置には、端面42よりも僅かに隆起した半円状の支持部48が設けられている。支持部48は、プリズム30を載置するためのものである。4つの支持部48の先端は支持面49を形成し、支持面49はプリズム30の反射面32と一致する。支持軸受26及び27の支持孔265及び275の中心は、Y方向から見て一致するとともに支持面49に含まれる。支持面49と端面42は略平行であり、端面42は支持面49を越えて突出しない。 As shown in FIG. 6, the end surface 42 facing the front lower side, which corresponds to the base of the right triangle in the solid portion 41 of the holding member 40, is a tapered surface inclined by approximately 45 degrees with respect to the XY surface and the YZ surface. It has become. On the end face 42, semicircular support portions 48 slightly raised from the end face 42 are provided at positions of the boundary portions with the wall portions 46 and 47 apart from each other. The support portion 48 is for mounting the prism 30. The tips of the four support portions 48 form a support surface 49, which coincides with the reflection surface 32 of the prism 30. The centers of the support holes 265 and 275 of the support bearings 26 and 27 coincide with each other when viewed from the Y direction and are included in the support surface 49. The support surface 49 and the end surface 42 are substantially parallel, and the end surface 42 does not protrude beyond the support surface 49.
中実部41の端面42には、半円状に抉れた凹部425がある。Y方向から見て、壁部46の貫通孔465及び壁部47の貫通孔475は、中実部41の凹部425と重なっている。貫通孔465及び475と凹部425は、端面42のほぼ中央に設けられる。この貫通孔465及び475と凹部425に後述する支持軸50が収容されて固定される。また、端面42には、プリズム30が取り付けられたときに支持軸50周りの重量がバランスするように各々が階段状に凹んだ4つの窪み424が設けられている。 The end face 42 of the solid portion 41 has a recess 425 cut out in a semicircular shape. When viewed from the Y direction, the through hole 465 of the wall portion 46 and the through hole 475 of the wall portion 47 overlap with the recess 425 of the solid portion 41. The through holes 465 and 475 and the recess 425 are provided substantially in the center of the end face 42. A support shaft 50, which will be described later, is accommodated and fixed in the through holes 465 and 475 and the recess 425. Further, the end surface 42 is provided with four recesses 424, each of which is recessed in a stepped shape so that the weight around the support shaft 50 is balanced when the prism 30 is attached.
図3、図5(A)に示すように、中実部42の後面45には、磁石61が収容、固定される凹みが設けられている。磁石61は、コイル64と共に、保持部材40を駆動する駆動部としての役割を果たす部材である。磁石61の後側端面は、コイル64と僅かな間隔をあけて対峙している。また、図3及び図7に示すように、中実部41の上面43におけるY方向の中央部分は、凸部431として上側に突出している。この凸部431が板ばね70の開口731に嵌め込まれる。 As shown in FIGS. 3 and 5 (A), the rear surface 45 of the solid portion 42 is provided with a recess for accommodating and fixing the magnet 61. The magnet 61, together with the coil 64, is a member that serves as a drive unit that drives the holding member 40. The rear end surface of the magnet 61 faces the coil 64 with a slight gap. Further, as shown in FIGS. 3 and 7, the central portion of the upper surface 43 of the solid portion 41 in the Y direction protrudes upward as a convex portion 431. The convex portion 431 is fitted into the opening 731 of the leaf spring 70.
支持軸50は、保持部材40を揺動自在に支持する役割を果たす部材である。図8(A)、及び図8(B)に示すように、支持軸50は、細長い円柱形からその延伸方向の中央を占める部分を半円柱状に残して切り欠いたような形状をしている。支持軸50の直径は、貫通孔465、475、265、及び275の直径よりも僅かに細い。支持軸50の長さは、保持部材40におけるY方向に対向する壁部46及び47間の間隔よりも長く、ケース90におけるY方向に対向する板96及び97間の間隔よりも短い。 The support shaft 50 is a member that plays a role of swingably supporting the holding member 40. As shown in FIGS. 8 (A) and 8 (B), the support shaft 50 has a shape as if it were cut out from an elongated cylindrical shape, leaving a semi-cylindrical portion occupying the center in the extending direction. There is. The diameter of the support shaft 50 is slightly smaller than the diameters of the through holes 465, 475, 265, and 275. The length of the support shaft 50 is longer than the distance between the wall portions 46 and 47 facing the Y direction in the holding member 40, and shorter than the distance between the plates 96 and 97 facing the Y direction in the case 90.
支持軸50の両端部は円柱形をなしている。支持軸50の中央部は、第1外周面55と第2外周面52とを有している。第1外周面55は、円柱形の中心Oを通る軸線AXSに沿って両端部の円柱形の外周面と面一をなしている。第1外周面55の中心は軸線AXSと同じ位置にある。第2外周面52は、ほぼ平面である。第2外周面52は、円柱形の外周面よりも内側にあり、軸線AXSを越えて切り欠いた位置に設けてある。第2外周面52とその両端の起立面571及び561との間の境界部は、緩やかに湾曲している。プリズム30は、図8(C)に示すように、この軸線AXSを越えて切り欠いた位置内に収まるように配置される。 Both ends of the support shaft 50 have a cylindrical shape. The central portion of the support shaft 50 has a first outer peripheral surface 55 and a second outer peripheral surface 52. The first outer peripheral surface 55 is flush with the outer peripheral surface of the cylinder at both ends along the axis AXS passing through the center O of the cylinder. The center of the first outer peripheral surface 55 is at the same position as the axis AXS. The second outer peripheral surface 52 is substantially flat. The second outer peripheral surface 52 is inside the cylindrical outer peripheral surface, and is provided at a position notched beyond the axis AXS. The boundary between the second outer peripheral surface 52 and the upright surfaces 571 and 561 at both ends thereof is gently curved. As shown in FIG. 8C, the prism 30 is arranged so as to be within the notched position beyond the axis AXS.
支持軸50は、その第2外周面52が保持部材40の端面42の法線方向に向くように、中央部が保持部材40の凹部425に嵌るように支持されている。支持軸50のY方向の両端部は、保持部材40の貫通孔465及び475を通り抜け、支持軸受26及び27の支持孔265及び275の一端から途中まで挿入されている。支持軸50の両端部の円柱形の中心Oと保持部材40の貫通孔465及び475の中心は一致する。 The support shaft 50 is supported so that its central portion fits into the recess 425 of the holding member 40 so that the second outer peripheral surface 52 faces the normal direction of the end surface 42 of the holding member 40. Both ends of the support shaft 50 in the Y direction pass through the through holes 465 and 475 of the holding member 40, and are inserted halfway from one end of the support holes 265 and 275 of the support bearings 26 and 27. The cylindrical centers O at both ends of the support shaft 50 coincide with the centers of the through holes 465 and 475 of the holding member 40.
図5(B)に示すように、ケース90の板96の内面及び板97の内面は、筐体10を挟んでY方向に対向し、支持軸受26及び27の大径部262及び272の端面に当接している。この板96の内面及び板97の内面は、支持軸受26の支持孔265、及び支持軸受27の支持孔275の他端側を塞いでいる。 As shown in FIG. 5B, the inner surface of the plate 96 of the case 90 and the inner surface of the plate 97 face each other in the Y direction with the housing 10 interposed therebetween, and the end surfaces of the large diameter portions 262 and 272 of the support bearings 26 and 27. Is in contact with. The inner surface of the plate 96 and the inner surface of the plate 97 close the support hole 265 of the support bearing 26 and the other end side of the support hole 275 of the support bearing 27.
保持部材40の支持面49上にあるプリズム30の側面36及び37と保持部材40の壁部46及び47との間が、接着固定されている。また、第1外周面55と両端部の円柱形の外周面とで構成される支持軸50の外周面の一部が保持部材40の貫通孔465及び475又は凹部425の少なくとも一方に固定される。貫通孔465内の支持軸50の外周面と貫通孔475の内周面との間、及び貫通孔475内の支持軸50の外周面と貫通孔475の内周面との間に、接着剤が充填されて、保持部材40と支持軸50が固定されている。これにより、保持部材40、プリズム30、及び支持軸50が一体化されている。 The side surfaces 36 and 37 of the prism 30 on the support surface 49 of the holding member 40 and the wall portions 46 and 47 of the holding member 40 are adhesively fixed. Further, a part of the outer peripheral surface of the support shaft 50 composed of the first outer peripheral surface 55 and the cylindrical outer peripheral surfaces at both ends is fixed to at least one of the through holes 465 and 475 or the recess 425 of the holding member 40. .. Adhesive between the outer peripheral surface of the support shaft 50 in the through hole 465 and the inner peripheral surface of the through hole 475, and between the outer peripheral surface of the support shaft 50 in the through hole 475 and the inner peripheral surface of the through hole 475. Is filled, and the holding member 40 and the support shaft 50 are fixed. As a result, the holding member 40, the prism 30, and the support shaft 50 are integrated.
保持部材40、プリズム30、及び支持軸50が一体化されたものを、Y方向から見ると、支持軸50の第1外周面55の中心Oは、保持部材40の支持面49及びプリズム30の反射面32上にあり、第2外周面52全体が、支持面49及び反射面32よりも第1外周面55側にある。すなわち、端面42と平行になるように組み立てられているので、図8(C)に示すように、第2外周面52は、保持部材40の支持面49の高さ未満であり、反射面32には接触しない。また、仮に第2外周面52が端面42と非平行であったとしても、第2外周面52は、保持部材40の支持面49の高さ未満となるようにする。これによって、図8(C)に示すように、プリズム30の反射面32と支持軸50の第2外周面52との間には、隙間GPができる。 When the holding member 40, the prism 30, and the support shaft 50 are integrated when viewed from the Y direction, the center O of the first outer peripheral surface 55 of the support shaft 50 is the support surface 49 of the holding member 40 and the prism 30. It is on the reflective surface 32, and the entire second outer peripheral surface 52 is on the first outer peripheral surface 55 side of the support surface 49 and the reflective surface 32. That is, since it is assembled so as to be parallel to the end surface 42, as shown in FIG. 8C, the second outer peripheral surface 52 is less than the height of the support surface 49 of the holding member 40, and the reflective surface 32. Do not touch. Further, even if the second outer peripheral surface 52 is not parallel to the end surface 42, the second outer peripheral surface 52 is set to be less than the height of the support surface 49 of the holding member 40. As a result, as shown in FIG. 8C, a gap GP is formed between the reflection surface 32 of the prism 30 and the second outer peripheral surface 52 of the support shaft 50.
図5(B)に示すように、支持軸50における支持軸受26及び27の支持孔265及び275内に嵌め入れられている部分において、支持軸50の外周面と支持孔265の内周面との間、及び支持軸50の外周面と支持孔275の内周面との間には、粘弾性を有する樹脂が充填されている。粘弾性を有する樹脂は、いわゆるダンパーゲルである。支持軸50の端面56及び57にも、ダンパーゲルが設けられている。このダンパーゲルにより、板ばね70に支持されることによって保持部材40、プリズム30、及び支持軸50が一体化されたものに発生する振動を早期に収束させることができる。また、ダンパーゲルは通常のいわゆる液体潤滑剤に対して、形状を保ちやすく、支持軸50を支持孔265及び275の中心位置に保ちやすい。また、支持孔265及び275内における支持軸50の端面56及び57と固定部であるケース90の板96及び97との間の空間は、気密状態になる。また、保持部材40、プリズム30、及び保持部材40を一体化したものは、筐体10に対して、揺動し得る。 As shown in FIG. 5B, in the portions of the support shaft 50 that are fitted into the support holes 265 and 275 of the support bearings 26 and 27, the outer peripheral surface of the support shaft 50 and the inner peripheral surface of the support hole 265 A resin having viscoelasticity is filled between the space and between the outer peripheral surface of the support shaft 50 and the inner peripheral surface of the support hole 275. The resin having viscoelasticity is a so-called damper gel. Damper gels are also provided on the end faces 56 and 57 of the support shaft 50. With this damper gel, the vibration generated in the holding member 40, the prism 30, and the support shaft 50 integrated by being supported by the leaf spring 70 can be quickly converged. Further, the damper gel can easily maintain its shape with respect to a normal so-called liquid lubricant, and can easily maintain the support shaft 50 at the center position of the support holes 265 and 275. Further, the space between the end faces 56 and 57 of the support shaft 50 and the plates 96 and 97 of the case 90 which are fixed portions in the support holes 265 and 275 becomes airtight. Further, the holding member 40, the prism 30, and the holding member 40 integrated with each other can swing with respect to the housing 10.
板ばね70は、固定部である筐体10と保持部材40とを連結して保持部材40、プリズム30、及び保持部材40を一体化したものの動きを規制する役割を果たす部材である。板ばね70は、YZ平面に延在して設けられており、すなわち、支持軸50の延伸する方向及び固定体の厚さ方向である筐体10の厚さ方向に延在するように設けられている。すなわち、板ばね70は、コイル64及び磁石61の積層方向に沿って、且つコイル64及び磁石61とは重ならないように設けられている。図9に示すように、板ばね70は、両端に形成される外側部76及び77と、中央に形成される中央部73と、外側部76及び77と中央部73とを結ぶ腕部760及び770とを有する。2つの腕部760及び770の各々は、曲がりくねった形状を有している。外側部76、中央部73、外側部77は、それぞれZ方向に延びるように、Y方向に並ぶように形成されている。便宜的に、外側部76と中央部73と腕部760とを有する部分及び外側部77と中央部73と腕部770とを有する部分をそれぞれ板ばね片と称する。板ばね70は、中央部73を対称軸として、全体として線対称に形成されている。また、2つの板ばね片はそれぞれ、Y方向及びZ方向で線対称に形成されている。 The leaf spring 70 is a member that connects the housing 10 which is a fixing portion and the holding member 40 and integrates the holding member 40, the prism 30, and the holding member 40 to regulate the movement of the holding member 40. The leaf spring 70 is provided so as to extend in the YZ plane, that is, so as to extend in the extending direction of the support shaft 50 and the thickness direction of the housing 10, which is the thickness direction of the fixed body. ing. That is, the leaf spring 70 is provided along the stacking direction of the coil 64 and the magnet 61 so as not to overlap the coil 64 and the magnet 61. As shown in FIG. 9, the leaf spring 70 includes outer portions 76 and 77 formed at both ends, a central portion 73 formed in the center, and an arm portion 760 connecting the outer portions 76 and 77 and the central portion 73. It has 770 and. Each of the two arms 760 and 770 has a winding shape. The outer portion 76, the central portion 73, and the outer portion 77 are formed so as to be arranged in the Y direction so as to extend in the Z direction, respectively. For convenience, the portion having the outer portion 76, the central portion 73, and the arm portion 760 and the portion having the outer portion 77, the central portion 73, and the arm portion 770 are referred to as leaf spring pieces, respectively. The leaf spring 70 is formed line-symmetrically as a whole with the central portion 73 as the axis of symmetry. Further, the two leaf spring pieces are formed line-symmetrically in the Y direction and the Z direction, respectively.
より具体的に説明すると、板ばね70は全体として板体であり、中央部73及び外側部76並びに77も、平らな板体である。中央部73の中心には、矩形状の開口731がある。開口731の寸法は、保持部材40の凸部431の寸法よりやや大きい。腕部760は、中央部73と外側部76の前側の端部同士を結ぶ第1ワイヤ761と、中央部73と外側部76の後側の端部同士を結ぶ第2ワイヤ762とを有し、腕部770は、中央部73と外側部77の前側の端部同士を結ぶ第1ワイヤ771と、中央部73と外側部77の後側の端部同士を結ぶ第2ワイヤ772とを有する。 More specifically, the leaf spring 70 is a plate body as a whole, and the central portion 73 and the outer portions 76 and 77 are also flat plate bodies. At the center of the central portion 73, there is a rectangular opening 731. The size of the opening 731 is slightly larger than the size of the convex portion 431 of the holding member 40. The arm portion 760 has a first wire 761 that connects the front ends of the central portion 73 and the outer portion 76, and a second wire 762 that connects the rear ends of the central portion 73 and the outer portion 76. The arm portion 770 has a first wire 771 that connects the front ends of the central portion 73 and the outer portion 77, and a second wire 772 that connects the rear ends of the central portion 73 and the outer portion 77. ..
第1ワイヤ761及び771、並びに第2ワイヤ762及び772は、欧文字「S」とその鏡文字を向かい合せ、2つの文字の外側を向いた各端部をY方向に沿って伸ばして中央部73と外側部76及び77の端部に繋げ、内側を向いた端部同士をY方向に沿って伸ばして繋げたような形状を有している。 The first wires 761 and 771 and the second wires 762 and 772 face the European letter "S" and its mirror writing, and each end facing the outside of the two letters is extended along the Y direction to the central portion. It has a shape that is connected to the ends of 73 and the outer portions 76 and 77, and the end portions facing inward are extended and connected along the Y direction.
板ばね70は、開口731内に保持部材40の凸部431をはめ込むようにして、保持部材40に固定されている。板ばね70の外側部76及び77は、筐体10の側板16及び17の各々と上板13との交差位置にある突起432に固定されている。板ばね70は、ほぼ平板を保った状態で装着されている。板ばね70により、筐体10内の保持部材40は、その上面43が筐体10の上板13と平行に対峙する位置(以下、この位置を、初期位置という)となるように、保たれる。 The leaf spring 70 is fixed to the holding member 40 by fitting the convex portion 431 of the holding member 40 into the opening 731. The outer portions 76 and 77 of the leaf spring 70 are fixed to the protrusions 432 at the intersections of the side plates 16 and 17 of the housing 10 and the upper plate 13. The leaf spring 70 is mounted while keeping a substantially flat plate. The leaf spring 70 holds the holding member 40 in the housing 10 so that the upper surface 43 thereof faces the upper plate 13 of the housing 10 in parallel (hereinafter, this position is referred to as an initial position). Is done.
図3において、FPC80からコイル64に電流が流れると、コイル64と磁石61との間の電磁気的作用により、磁石61にはX方向の駆動力が発生する。磁石61は、支持軸50に対してZ方向後側にずれて配置されているので、磁石61にX方向下側の駆動力が発生すると、保持部材40とその中に保持されているプリズム30は、支持軸50を中心に反時計方向に回転する。その際、板ばね70によって保持部材40と筐体10は連結されているので、磁石61に発生する駆動力と板ばね70の変形に伴う付勢力がバランスする位置まで、プリズム30、保持部材40、及び支持軸50を一体化したものが回転する。これによって、プリズム30からの出射光は初期位置における出射光に対して、反時計方向に回転した方向に出射され、レンズ体9を経由して画像センサ100に到る。コイル64への電流の供給を止めると、板ばね70の復元力により、プリズム30、保持部材40、及び支持軸50を一体化したものが時計方向に回転し、初期位置に戻る。 In FIG. 3, when a current flows from the FPC 80 to the coil 64, a driving force in the X direction is generated in the magnet 61 due to the electromagnetic action between the coil 64 and the magnet 61. Since the magnet 61 is arranged so as to be displaced rearward in the Z direction with respect to the support shaft 50, when a driving force on the lower side in the X direction is generated on the magnet 61, the holding member 40 and the prism 30 held therein are generated. Rotates counterclockwise around the support shaft 50. At that time, since the holding member 40 and the housing 10 are connected by the leaf spring 70, the prism 30 and the holding member 40 reach a position where the driving force generated in the magnet 61 and the urging force due to the deformation of the leaf spring 70 are balanced. , And the one in which the support shaft 50 is integrated rotates. As a result, the emitted light from the prism 30 is emitted in a direction rotated counterclockwise with respect to the emitted light at the initial position, and reaches the image sensor 100 via the lens body 9. When the supply of the current to the coil 64 is stopped, the restoring force of the leaf spring 70 causes the prism 30, the holding member 40, and the support shaft 50 to be integrated to rotate clockwise and return to the initial position.
コイル64に逆方向の電流を流した場合、磁石61には、X方向上側の駆動力が発生し、駆動力と付勢力がバランスする位置まで、プリズム30、保持部材40、及び支持軸50を一体化したものが時計方向に回転する。これによって、プリズム30からの出射光は初期位置における出射光に対して、時計方向に回転した方向に出射され、レンズ体9を経由して画像センサ100に到る。コイル64への電流の供給を止めると、プリズム30、保持部材40、及び支持軸50を一体化したものが反時計方向に回転し、初期位置に戻る。 When a current in the opposite direction is passed through the coil 64, a driving force on the upper side in the X direction is generated in the magnet 61, and the prism 30, the holding member 40, and the support shaft 50 are moved to a position where the driving force and the urging force are balanced. The integrated one rotates clockwise. As a result, the emitted light from the prism 30 is emitted in a direction rotated clockwise with respect to the emitted light at the initial position, and reaches the image sensor 100 via the lens body 9. When the supply of the current to the coil 64 is stopped, the prism 30, the holding member 40, and the support shaft 50 integrated with each other rotate counterclockwise and return to the initial position.
図10(A)、(B)に示すように、プリズム30、保持部材40、及び支持軸50を一体化したものが、支持軸50を揺動軸として揺動するとき、板ばね70の中央部73が、外側部76及び77に対して、前後方向に相対移動する。このとき、厳密には、板ばね70の中央部73は支持軸50を中心に円弧状に揺動するので、板ばね70は中央部73と外側部76、77との間で捩れが生じながら変形する。 As shown in FIGS. 10A and 10B, when the prism 30, the holding member 40, and the support shaft 50 are integrated and swing with the support shaft 50 as the swing shaft, the center of the leaf spring 70. The portion 73 moves relative to the outer portions 76 and 77 in the front-rear direction. Strictly speaking, at this time, the central portion 73 of the leaf spring 70 swings in an arc shape about the support shaft 50, so that the leaf spring 70 is twisted between the central portion 73 and the outer portions 76 and 77. Deform.
以上が、本実施形態の詳細である。本実施形態によると、次の効果が得られる。
本実施形態では、支持軸50は、支持孔265及び275に嵌め入れる両端部が円柱形をしており、中央部が円柱形の軸線AXSに沿って円柱形の外周面と面一をなす第1外周面55と円柱形の外周面よりも内側にある第2外周面52とを有している。第1外周面55の中心は支持面49上にあるとともに、第2外周面52全体が、支持面49よりも第1外周面55側にある。よって、支持面49に載置されているプリズム30の反射面32を揺動軸である支持軸50の外周面の中心と一致させることができる。従って、本実施形態によると、揺動するのに必要なスペースが小さく、小型化をしやすいプリズム駆動装置3を提供することができる。
The above is the details of this embodiment. According to this embodiment, the following effects can be obtained.
In the present embodiment, the support shaft 50 has a cylindrical shape at both ends to be fitted into the support holes 265 and 275, and the central portion is flush with the outer peripheral surface of the cylindrical shape along the cylindrical axis AXS. It has one outer peripheral surface 55 and a second outer peripheral surface 52 inside the cylindrical outer peripheral surface. The center of the first outer peripheral surface 55 is on the support surface 49, and the entire second outer peripheral surface 52 is on the first outer peripheral surface 55 side of the support surface 49. Therefore, the reflection surface 32 of the prism 30 mounted on the support surface 49 can be aligned with the center of the outer peripheral surface of the support shaft 50 which is the swing axis. Therefore, according to the present embodiment, it is possible to provide the prism driving device 3 which requires a small space for swinging and is easy to miniaturize.
また、本実施形態では、保持部材40を筐体10に対して揺動自在に支持する支持軸50と、筐体10と保持部材40とを連結する板ばね70と、を備えている。板ばね70は、支持軸50が延在するY方向を含む平面であるYZ平面に延在して設けられている。よって、プリズム30を支持している保持部材40は、板ばね70の弾性力により容易に初期位置に戻ることができる。従って、本実施形態によると、搭載されるプリズム30を容易に初期位置に戻すことができるプリズム駆動装置3を提供することができる。 Further, in the present embodiment, a support shaft 50 that swingably supports the holding member 40 with respect to the housing 10 and a leaf spring 70 that connects the housing 10 and the holding member 40 are provided. The leaf spring 70 is provided so as to extend in the YZ plane which is a plane including the Y direction in which the support shaft 50 extends. Therefore, the holding member 40 that supports the prism 30 can be easily returned to the initial position by the elastic force of the leaf spring 70. Therefore, according to the present embodiment, it is possible to provide the prism driving device 3 capable of easily returning the mounted prism 30 to the initial position.
また、本実施形態では、保持部材40を支持する支持軸50と、支持軸50の両端部の位置に配置されて支持軸50をその支持孔265及び275内で揺動自在に支持する固定部としての支持軸受26及び27と、を備えている。支持軸50の外周面と支持軸受26及び27の支持孔265及び275内の内周面との間に、粘弾性を有する樹脂が充填されている。この樹脂によって、衝撃が支持軸50、即ち支持軸50が支持するプリズム30に伝わりにくい。従って、本実施形態によると、衝撃が加わってもプリズム30にその衝撃が伝わりにくいプリズム駆動装置3を提供することができる。 Further, in the present embodiment, the support shaft 50 that supports the holding member 40 and the fixing portion that is arranged at the positions of both ends of the support shaft 50 and swingably supports the support shaft 50 in the support holes 265 and 275. Support bearings 26 and 27 as the above. A resin having viscoelasticity is filled between the outer peripheral surface of the support shaft 50 and the inner peripheral surface in the support holes 265 and 275 of the support bearings 26 and 27. Due to this resin, the impact is not easily transmitted to the support shaft 50, that is, the prism 30 supported by the support shaft 50. Therefore, according to the present embodiment, it is possible to provide the prism driving device 3 in which the impact is not easily transmitted to the prism 30 even if an impact is applied.
また、本実施形態では、保持部材40に固定される支持軸50と、支持軸50をその支持孔265及び275内で揺動自在に支持する固定部である支持軸受26及び27と、を備えている。支持軸50は支持孔265及び275の一端から途中まで嵌め入れられており、固定部であるケース90の板96及び97は支持孔265及び275の他端側を塞いでいる。支持軸受26及び27の支持孔265及び275内における支持軸50と板96及び97との間の空間は、気密状態になり、この空間に空気溜まりができ、この空気溜まりが空気ばねとして作用する。よって、支持軸50が、Y方向に移動しても板96及び97に衝突せず、仮に衝突したとしてもその衝撃は小さなものとなる。従って、本実施形態によると、プリズム30とそれを支持する部材である保持部材40及び支持軸50が支持軸50に沿って移動して他の部分に衝突し難いプリズム駆動装置3を提供することができる。 Further, in the present embodiment, the support shaft 50 fixed to the holding member 40 and the support bearings 26 and 27 which are the fixing portions for swingably supporting the support shaft 50 in the support holes 265 and 275 are provided. ing. The support shaft 50 is fitted halfway from one end of the support holes 265 and 275, and the plates 96 and 97 of the case 90, which are fixed portions, close the other ends of the support holes 265 and 275. The space between the support shaft 50 and the plates 96 and 97 in the support holes 265 and 275 of the support bearings 26 and 27 becomes airtight, and an air pool is formed in this space, and this air pool acts as an air spring. .. Therefore, even if the support shaft 50 moves in the Y direction, it does not collide with the plates 96 and 97, and even if it collides, the impact is small. Therefore, according to the present embodiment, there is provided a prism driving device 3 in which the prism 30, the holding member 40 which is a member supporting the prism 30, and the support shaft 50 move along the support shaft 50 and do not easily collide with other portions. Can be done.
なお、本実施形態において、支持軸受26及び27を設けずに、支持軸50を筐体10の貫通孔165及び175に直に嵌め入れてもよい。この場合、貫通孔165及び175が支持孔265及び275とみなされる。筐体10の2つの側板16及び17とその中心の貫通孔165及び175のY方向の厚さを厚くし、貫通孔165及び175の直径を支持軸50の直径よりも僅かに太くし、貫通孔165及び175内に支持軸50の両端部を挿入し、貫通孔165及び175の内周面と支持軸50の外周面との間に粘弾性を有する樹脂を充填し、側板16及び17の外側面をケース90の板96及び97の内側面に当接させて貫通孔165及び175を塞ぐようにするとよい。 In this embodiment, the support shaft 50 may be directly fitted into the through holes 165 and 175 of the housing 10 without providing the support bearings 26 and 27. In this case, the through holes 165 and 175 are regarded as the support holes 265 and 275. The thickness of the two side plates 16 and 17 of the housing 10 and the through holes 165 and 175 at the center thereof in the Y direction is increased, and the diameters of the through holes 165 and 175 are made slightly thicker than the diameter of the support shaft 50 to penetrate. Both ends of the support shaft 50 are inserted into the holes 165 and 175, and a resin having viscoelasticity is filled between the inner peripheral surfaces of the through holes 165 and 175 and the outer peripheral surface of the support shaft 50 to form the side plates 16 and 17. The outer side surface may be brought into contact with the inner side surfaces of the plates 96 and 97 of the case 90 to close the through holes 165 and 175.
また、本実施形態において、板ばね70は、支持軸50の延在方向に沿って、即ちY方向を含む平面に延在して設けられていれば、筐体10の厚さ方向に沿って設けられている必要はない。例えば、端面42と平行な方向に延在するように設けられてもよい。この場合においても、板ばね70の中央部73と外側部76及び77は、常にY方向に並ぶように設けられている。 Further, in the present embodiment, if the leaf spring 70 is provided along the extending direction of the support shaft 50, that is, extending along the plane including the Y direction, the leaf spring 70 is provided along the thickness direction of the housing 10. It does not have to be provided. For example, it may be provided so as to extend in a direction parallel to the end face 42. Even in this case, the central portion 73 and the outer portions 76 and 77 of the leaf spring 70 are always provided so as to be aligned in the Y direction.
また、本実施形態において、支持軸受26及び27の支持孔265及び275を塞ぐ部材は、ケース90の板96及び97である必要はない。例えば、単に支持孔265及び275を塞ぐだけの部材を支持軸受26及び27に貼り付けるようなものであってもよい。また、支持孔265及び275は、完全に塞がずに、僅かな空気逃げ口を設けてもよい。 Further, in the present embodiment, the members that close the support holes 265 and 275 of the support bearings 26 and 27 need not be the plates 96 and 97 of the case 90. For example, a member that merely closes the support holes 265 and 275 may be attached to the support bearings 26 and 27. Further, the support holes 265 and 275 may be provided with a slight air escape port without being completely closed.
1 カメラ装置
3 プリズム駆動装置
8 レンズ駆動装置
9 レンズ体
10 筐体
13 上板
15 後板
16 17 側板
26 27支持軸受
30 プリズム
31 入射面
32 反射面
34 出射面
36 37 側面
40 保持部材
41 中実部
42 56 57 端面
43 上面
45 後面
46 47 壁部
48 支持部
49 支持面
50 支持軸
52 第2外周面
55 第1外周面
61 磁石
64 コイル
70 板ばね
73 中央部
76 77 外側部
80 FPC
81 第1面部
82 第2面部
83 凹部
90 ケース
91 95 96 97 板
100 画像センサ
151 731 開口
165 175 465 475 貫通孔
261 271 小径部
262 272 大径部
265 275 支持孔
400 スマートフォン
424 窪み
425 凹部
431 凸部
432 突起
561 571 起立面
760 770 腕部
761 771 第1ワイヤ
762 772 第2ワイヤ
801 枠体
802 レンズキャリア
911 951 開口
912 952 板
941 ベース
1 Camera device 3 Prism drive device 8 Lens drive device 9 Lens body 10 Housing 13 Top plate 15 Rear plate 16 17 Side plate 26 27 Support bearing 30 Prism 31 Incident surface 32 Reflection surface 34 Exit surface 36 37 Side surface 40 Holding member 41 Solid Part 42 56 57 End face 43 Top surface 45 Rear surface 46 47 Wall part 48 Support part 49 Support surface 50 Support shaft 52 Second outer peripheral surface 55 First outer peripheral surface 61 Magnet 64 Coil 70 Leaf spring 73 Central part 76 77 Outer part 80 FPC
81 1st surface 82 2nd surface 83 Concave 90 Case 91 95 96 97 Plate 100 Image sensor 151 731 Aperture 165 175 465 475 Through hole 261 271 Small diameter 262 272 Large diameter 265 275 Support hole 400 Smartphone 424 Recess 43 Concave Part 432 Protrusion 561 571 Erecting surface 760 770 Arm part 761 771 First wire 762 772 Second wire 801 Frame 802 Lens carrier 911 951 Aperture 912 952 Plate 941 Base
Claims (6)
前記保持部材に固定される支持軸と、
前記支持軸をその支持孔内で揺動自在に支持する固定部と、
を備え、
前記支持軸は前記支持孔の一端から途中まで嵌め入れられており、前記固定部の他の部分が前記支持孔の他端側を塞いでいる
ことを特徴とする光学素子駆動装置。 A holding member having a support portion for supporting the optical element and
A support shaft fixed to the holding member and
A fixing portion that swingably supports the support shaft in the support hole,
With
An optical element driving device, characterized in that the support shaft is fitted halfway from one end of the support hole, and the other portion of the fixing portion closes the other end side of the support hole.
ことを特徴とする請求項1に記載の光学素子駆動装置。 The optical element driving device according to claim 1, wherein a resin material is filled between the outer peripheral surface of the support shaft and the inner peripheral surface of the support hole.
前記支持軸受は、円柱状の小径部と前記小径部よりも大きな直径をもった円柱状の大径部とを有し、
前記支持軸受の小径部が、前記筐体の2つの前記側板の前記貫通孔に挿入されて固定され、
前記支持軸の両端部は、前記支持軸受の前記支持孔の一端から途中まで嵌め入れられている
ことを特徴とする請求項1に記載の光学素子駆動装置。 The fixed body includes a housing having a through hole and two facing side plates, and a support bearing having the support hole.
The support bearing has a columnar small diameter portion and a columnar large diameter portion having a diameter larger than that of the small diameter portion.
The small diameter portion of the support bearing is inserted and fixed in the through holes of the two side plates of the housing.
The optical element driving device according to claim 1, wherein both ends of the support shaft are fitted halfway from one end of the support hole of the support bearing.
前記支持軸受の大径部の端面が、それぞれ前記板に当接しており、前記2つの板の当該当接部分が、前記支持孔を塞いでいる
ことを特徴とする請求項3に記載の光学素子駆動装置。 The fixed body includes a case having two plates facing each other with the housing interposed therebetween and covering the apparatus main body.
The optics according to claim 3, wherein the end faces of the large-diameter portions of the support bearings are in contact with the plates, and the contact portions of the two plates close the support holes. Element drive device.
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CN201922134966.5U CN210864162U (en) | 2019-05-22 | 2019-12-03 | Optical element driving device, camera device, and electronic apparatus |
CN201911220532.5A CN111983773A (en) | 2019-05-22 | 2019-12-03 | Optical element driving device, camera device, and electronic apparatus |
US16/716,951 US11256061B2 (en) | 2019-05-22 | 2019-12-17 | Optical element driving device, camera device and electronic apparatus |
US17/577,806 US20220137327A1 (en) | 2019-05-22 | 2022-01-18 | Optical Element Driving Device, Camera Device and Electronic Apparatus |
US17/577,840 US20220137318A1 (en) | 2019-05-22 | 2022-01-18 | Optical Element Driving Device, Camera Device and Electronic Apparatus |
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