JP2016053687A5 - Built-in member for light amount adjusting device, light amount adjusting device, and optical apparatus - Google Patents
Built-in member for light amount adjusting device, light amount adjusting device, and optical apparatus Download PDFInfo
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- JP2016053687A5 JP2016053687A5 JP2014180256A JP2014180256A JP2016053687A5 JP 2016053687 A5 JP2016053687 A5 JP 2016053687A5 JP 2014180256 A JP2014180256 A JP 2014180256A JP 2014180256 A JP2014180256 A JP 2014180256A JP 2016053687 A5 JP2016053687 A5 JP 2016053687A5
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- light amount
- ceramic fiber
- adjusting device
- built
- fiber reinforced
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- 230000003287 optical Effects 0.000 title description 4
- 239000000919 ceramic Substances 0.000 claims description 30
- 239000000835 fiber Substances 0.000 claims description 30
- 230000001681 protective Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 229920000311 Fiber-reinforced composite Polymers 0.000 claims description 2
- 239000003733 fiber-reinforced composite Substances 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims 1
- 230000002093 peripheral Effects 0.000 description 7
- 230000002787 reinforcement Effects 0.000 description 4
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 229920005668 polycarbonate resin Polymers 0.000 description 2
- 239000004431 polycarbonate resin Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
Description
本発明は、カメラ等の撮像装置において搭載される光量調整装置の少なくとも一部の構成として組み込まれる組込部材、及びこの組込部材を備えた光量調整装置、並びにこの光量調整装置を備えた光学機器に関する。 The invention, embedded member incorporated as at least a part of the configuration of a light amount adjustment device mounted in the imaging apparatus such as a camera, and the light quantity adjusting device including the embedded member, and provided with the light quantity adjusting device It relates to optical equipment.
従来から、例えば、絞り装置などの光量調整装置では、光通過開口としての絞り開口の形状を多数枚の絞り羽根(光量調整羽根)によって形成する構成が知られている(特許文献1参照)。この特許文献1では、台座に形成した固定開口の周囲で回動可能な駆動リングにより多数枚の絞り羽根を回動させる構成が開示されている。 Conventionally, for example, in the light amount adjustment device, such as the diaphragm device, configuration formed by a number of sheets of aperture blades of the diaphragm aperture shape as the light passage opening (light amount adjustment blade) is known (see Patent Document 1 ). Japanese Patent Application Laid-Open No. H10-260260 discloses a configuration in which a large number of diaphragm blades are rotated by a drive ring that is rotatable around a fixed opening formed in a pedestal.
本発明は、摺動性能を向上した光量調整装置用の組込部材及び光量調整装置並びにこれを備えた光学機器を提供する。 The present invention provides an optical apparatus having built-members and the light amount adjuster and the same for the light amount adjustment device having an improved sliding performance.
また、上記本発明では、前記セラミックス繊維強化層が設けられた前記組込部材のうち少なくとも前記セラミックス繊維強化層からなる表面上には、保護膜が設けられていることを特徴とする。このような本発明の態様によれば、セラミックス繊維強化層の繊維配向が面方向に配向し、その表面上においてセラミックス繊維の端部が突出する割合が低減されることから、その上から形成する摺動性向上のための保護膜の膜厚を薄く形成することが可能となる。 Further, in the present invention, wherein the surface of at least said ceramic fiber reinforced layer of the embedded member ceramic fiber reinforced layer is provided, wherein a protective film is provided. According to such an aspect of the present invention, the fiber orientation of the ceramic fiber reinforced layer is oriented in the plane direction, and the rate at which the end portion of the ceramic fiber projects on the surface is reduced. It is possible to reduce the thickness of the protective film for improving the slidability.
本発明によれば、摺動性能を向上した光量調整装置用の組込部材及び光量調整装置並びにこれを備えた光学機器を提供することが可能となる。 According to the present invention, it is possible to provide an optical apparatus having built-members and the light amount adjuster and the same for the light amount adjustment device having an improved sliding performance.
例えば、駆動リング1を回転させるにつれて駆動リング1と保持部材2との間で生じる摩擦から駆動リング1の表面側でセラミックス繊維強化層100の樹脂部分が削れたとしても、残ったセラミックス繊維はその面方向に配向していることから、保持部材2とセラミックス繊維の長手方向に沿った外周面とが実質的に摺接することになる。つまり、セラミックス繊維強化層100の表面に出現した各セラミックス繊維の外周面が摺接面となって、駆動リング1と保持部材2との間で駆動リング1の高い摺動性能を長期に亘って維持することが可能となる。また、セラミックス繊維強化層100の表面に塗装によって保護膜を形成した場合には、使用開始当初は保護膜の表面が摺接面となり、保護膜が削れた後は、セラミックス繊維強化層の表面(樹脂表面)が摺接面となり、その後、樹脂表面が削れた後は、セラミックス繊維の外周面が出現した面が摺接面となる。なお、保護膜を設けない場合は、セラミックス繊維強化層100の表面が摺接面となる。 For example, even if the resin portion of the ceramic fiber reinforced layer 100 is scraped on the surface side of the drive ring 1 due to friction generated between the drive ring 1 and the holding member 2 as the drive ring 1 is rotated, the remaining ceramic fibers are not Since it is oriented in the surface direction, the holding member 2 and the outer peripheral surface along the longitudinal direction of the ceramic fiber are substantially in sliding contact. That is, the outer peripheral surface of each ceramic fiber that appears on the surface of the ceramic fiber reinforced layer 100 becomes a sliding contact surface, and the high sliding performance of the drive ring 1 between the drive ring 1 and the holding member 2 is maintained over a long period of time. Can be maintained. Further, when a protective film is formed on the surface of the ceramic fiber reinforced layer 100 by painting, the surface of the protective film becomes a sliding contact surface at the beginning of use, and after the protective film is scraped, the surface of the ceramic fiber reinforced layer ( (Resin surface) becomes the sliding contact surface, and then the surface on which the outer peripheral surface of the ceramic fiber appears becomes the sliding contact surface after the resin surface is scraped. In addition, when not providing a protective film, the surface of the ceramic fiber reinforcement layer 100 turns into a slidable contact surface.
<比較例5>
比較例5の駆動リングとして、ポリカーボネート樹脂にガラス繊維を20重量%添加して得られた材料を使用して駆動リング(塗装なし)を作製し、ポリカーボネート樹脂にガラス繊維を20重量%添加して得られた材料を保持部材に用いて、上述の光量調整装置に組み込み、絞り動作耐久試験を行った。この結果、表1に示すように、5万回動作で駆動リング、保持部材共に摩耗し材料が削れた。
<Comparative Example 5>
As a driving ring of Comparative Example 5, a driving ring (without coating) was prepared using a material obtained by adding 20% by weight of glass fiber to polycarbonate resin, and 20% by weight of glass fiber was added to polycarbonate resin. The obtained material was used as a holding member and incorporated in the light amount adjusting device described above, and a diaphragm operation durability test was performed. As a result, as shown in Table 1, both the drive ring and the holding member were worn out and the material was scraped by 50,000 operations .
詳細には、本実施形態では、駆動リング10の環状突起部11の表面がセラミックス繊維強化層100によって構成されている。一方、保持部材20には、開口部20aの内周面20bにおいて実質的に等間隔で7箇所の凸部20cが設けられている。各凸部20cは、開口部20aの内周面20bから光通過経路側に向かって突出して設けられ、その表面はR面となっている。そして、本実施形態においては、駆動リング10を回転させると、駆動リング10の環状突起部11が保持部材20の凸部20cに摺接する。このとき、本実施形態では、この環状突起部のうち凸部20cに摺接する側の表面を構成する部分が、セラミックス繊維強化層100によって構成させているため、上述した実施形態1と同様に、高い摺動性能を得ることが可能となる。 Specifically, in the present embodiment, the surface of the annular protrusion 11 of the drive ring 10 is constituted by the ceramic fiber reinforced layer 100. On the other hand, the holding member 20 is provided with seven convex portions 20c at substantially equal intervals on the inner peripheral surface 20b of the opening 20a. Each convex portion 20c is provided so as to protrude from the inner peripheral surface 20b of the opening 20a toward the light passing path side, and the surface thereof is an R surface. In the present embodiment, when the drive ring 10 is rotated, the annular protrusion 11 of the drive ring 10 comes into sliding contact with the convex portion 20 c of the holding member 20. At this time, in this embodiment, since the part which comprises the surface of the side which contacts the convex part 20c in this annular projection part is comprised by the ceramic fiber reinforcement layer 100, similarly to Embodiment 1 mentioned above, High sliding performance can be obtained.
詳細には、本実施形態では、駆動リング10の環状突起部11の表面がセラミックス繊維強化層100によって構成されている。そして、本実施形態では、駆動リング10の環状突起部11と、保持部材2の内周面2bとが面接触で摺接する。この場合でも、本実施形態では、この環状突起部11のうち保持部材2の内周面2bに摺接する側の表面を構成する部分が、セラミックス繊維強化層100によって構成させているため、上述した実施形態1または2と同様に、高い摺動性能を得ることが可能となる。 Specifically, in the present embodiment, the surface of the annular protrusion 11 of the drive ring 10 is constituted by the ceramic fiber reinforced layer 100. In this embodiment, the annular protrusion 11 of the drive ring 10 and the inner peripheral surface 2b of the holding member 2 are in sliding contact with each other. Even in this case, in the present embodiment, the portion constituting the surface of the annular projecting portion 11 that is in sliding contact with the inner peripheral surface 2b of the holding member 2 is configured by the ceramic fiber reinforced layer 100, and thus described above. As in the first or second embodiment, high sliding performance can be obtained.
(他の実施形態)
以上本発明を各実施形態1〜3に基づいて詳細に説明したが、本発明は上述した各実施形態1〜3に限定されるものではない。例えば、上述した実施形態1では、駆動リング1側においてセラミックス繊維強化層100を適用した場合について説明したが、本発明は勿論これに限定されず、例えば、保持部材2のうち駆動リング1と接触する部分において少なくともセラミックス繊維強化層100を適用してもよく、実施形態2、3においてもこれを適用してもよい。
(Other embodiments)
As mentioned above, although this invention was demonstrated in detail based on each Embodiment 1-3, this invention is not limited to each Embodiment 1-3 mentioned above. For example, in the first embodiment described above, the case where the ceramic fiber reinforced layer 100 is applied on the drive ring 1 side has been described. However, the present invention is of course not limited thereto, and for example, contacts the drive ring 1 of the holding member 2. At least the ceramic fiber reinforced layer 100 may be applied to the portion to be applied, and this may also be applied to the second and third embodiments.
また、上述した実施形態1では、駆動リング1と保持部材2のうち片方の駆動リング1に対してセラミックス繊維強化層100を適用した場合について説明したが、本発明は勿論これに限定されず、例えば、駆動リング1及び保持部材2の両方において相互に接触する部分のそれぞれにセラミックス繊維強化層100を適用してもよい。 Moreover, in Embodiment 1 mentioned above, although the case where the ceramic fiber reinforcement layer 100 was applied with respect to one drive ring 1 among the drive ring 1 and the holding member 2, of course, this invention is not limited to this, For example, you may apply the ceramic fiber reinforcement layer 100 to each of the part which mutually contacts in both the drive ring 1 and the holding member 2. FIG.
なお、上述したセラミックス繊維強化層100は、光量調整装置の組込部材間で摺接する部分だけに適宜設けてもよいし、組込部材の全体をセラミックス繊維強化複合材料によって形成してもよい。 In addition, the ceramic fiber reinforced layer 100 described above may be provided as appropriate only in the portion in sliding contact between the built-in members of the light amount adjusting device, or the entire built-in member may be formed of a ceramic fiber reinforced composite material.
Claims (2)
Priority Applications (1)
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JP2014180256A JP6468762B2 (en) | 2014-09-04 | 2014-09-04 | Built-in member for light amount adjusting device, light amount adjusting device, and optical apparatus |
Applications Claiming Priority (1)
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JP2014180256A JP6468762B2 (en) | 2014-09-04 | 2014-09-04 | Built-in member for light amount adjusting device, light amount adjusting device, and optical apparatus |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2019003586A Division JP6641036B2 (en) | 2019-01-11 | 2019-01-11 | Rotating member and holding member for light amount adjusting device, light amount adjusting device, and optical device |
Publications (3)
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JP2016053687A JP2016053687A (en) | 2016-04-14 |
JP2016053687A5 true JP2016053687A5 (en) | 2017-08-24 |
JP6468762B2 JP6468762B2 (en) | 2019-02-13 |
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Families Citing this family (1)
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JP7411850B1 (en) | 2023-09-20 | 2024-01-11 | エーエーシー オプティックス ソリューションズ ピーティーイー リミテッド | Variable aperture, imaging module and electronic equipment |
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JP2002040511A (en) * | 2000-07-26 | 2002-02-06 | Nidec Copal Corp | Resin material for optical appliance |
JP2004168897A (en) * | 2002-11-20 | 2004-06-17 | Yuka Denshi Co Ltd | Highly electroconductive resin molded product |
JP2005015571A (en) * | 2003-06-24 | 2005-01-20 | Nidec Copal Corp | Resin material for optical equipment |
JP2007212665A (en) * | 2006-02-08 | 2007-08-23 | Canon Electronics Inc | Light intercepting vane for optical apparatus, and exposure control device with same |
JP2009086303A (en) * | 2007-09-28 | 2009-04-23 | Nidec Copal Corp | Diaphragm device for camera |
JP5902462B2 (en) * | 2010-12-21 | 2016-04-13 | キヤノン電子株式会社 | Light amount adjusting device and optical apparatus |
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