JP2006138971A - Sector driving device - Google Patents

Sector driving device Download PDF

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JP2006138971A
JP2006138971A JP2004327254A JP2004327254A JP2006138971A JP 2006138971 A JP2006138971 A JP 2006138971A JP 2004327254 A JP2004327254 A JP 2004327254A JP 2004327254 A JP2004327254 A JP 2004327254A JP 2006138971 A JP2006138971 A JP 2006138971A
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sector
opening
sectors
plate
shutter
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Yuji Takahashi
裕士 高橋
Yoichi Nakano
洋一 中野
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Seiko Precision Inc
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Seiko Precision Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a sector driving device which does not spoil the outside appearance of a sector. <P>SOLUTION: A sector plate 18, a sector for a diaphragm 17, a separate plate 16, and a sector for a shutter 15 are provided in this order on a sector base plate 21, and are covered with a blade receiving plate 11. The sector base plate 21 and the blade receiving plate 11 form a sector chamber for housing the sectors (17 and 15), and the sector chamber is divided into two by the separate plate 16. The sector for a diaphragm 17 is housed in either of the divided sector chamber, and the sector for a shutter 15 is housed in the other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、セクタ駆動装置に関する。   The present invention relates to a sector drive device.

従来、２枚の羽根（セクタともいう）を相反する方向へ同時に回転させて、露光用のシャッタ開口を開閉するセクタ駆動装置が存在する（例えば、以下に示す特許文献１参照）。このようなセクタ駆動装置を搭載したカメラなどは、電源を切っている状態では受光部を保護するために２枚のセクタを閉じた状態とすることがある。
登録実用新案第２６０７４００号公報 2. Description of the Related Art Conventionally, there is a sector drive device that opens and closes an exposure shutter opening by simultaneously rotating two blades (also referred to as sectors) in opposite directions (see, for example, Patent Document 1 shown below). A camera equipped with such a sector drive device may be in a state in which two sectors are closed in order to protect the light receiving unit when the power is turned off.
Registered Utility Model No. 2607400

しかしながら、２枚のセクタが相反する方向に回転するため、セクタ同士が擦れ、表面に傷が付きやすい。このため、シャッタ開口を閉じた状態にすると、シャッタ開口からセクタに付いた傷が見えてしまう問題がある。   However, since the two sectors rotate in opposite directions, the sectors are rubbed and the surface is easily scratched. For this reason, when the shutter opening is in a closed state, there is a problem that a scratch on the sector can be seen from the shutter opening.

例えば、図５に示すように、羽根受け板１１に設けられたシャッタ開口１２から２枚のセクタ１５，１７が退避した状態から、図６に示すような、セクタ１５，１７がシャッタ開口１２に進入するタイプの場合、セクタ１５とセクタ１７とがシャッタ開口１２を閉じるとき、セクタ１５および１７の端部が互いにぶつかったり、セクタ１５とセクタ１７とが擦れたりすることで、傷１５ａがセクタ１５に生じることがある。この場合は、シャッタ開口１２を閉じた状態にしておくと小絞り開口３７から傷１５ａが見えてしまい外観を損ねるおそれがあった。   For example, as shown in FIG. 5, from the state in which the two sectors 15 and 17 are retracted from the shutter opening 12 provided in the blade receiving plate 11, the sectors 15 and 17 are moved into the shutter opening 12 as shown in FIG. In the case of the entering type, when the sector 15 and the sector 17 close the shutter opening 12, the ends of the sectors 15 and 17 collide with each other or the sector 15 and the sector 17 rub against each other, so that the flaw 15 a becomes the sector 15. May occur. In this case, if the shutter opening 12 is closed, the scratch 15a can be seen from the small aperture opening 37, which may impair the appearance.

そこで本発明は、上記の問題に鑑みてなされたものであり、閉じた状態でのセクタの外観を損ねないセクタ駆動装置を提供することを目的とする。   Accordingly, the present invention has been made in view of the above problems, and an object thereof is to provide a sector drive device that does not impair the appearance of the sector in the closed state.

かかる目的を達成するために、請求項１記載の本発明は、シャッタ開口を有するセクタ基板と、相反する方向に回転させることで前記シャッタ開口を覆う第１及び第２のセクタとを有するセクタ駆動装置であって、前記シャッタ開口に対応する位置に開口を有し、前記第１のセクタと前記第２のセクタとの間に設けられ、前記シャッタ開口の閉鎖時に前記第１及び第２のセクタの一部と重なる板状部材を有している構成とされる。第１のセクタと第２のセクタとの間に板状部材が設けられているので、第１及び第２のセクタ同士が直接擦りあうことがなく、第１及び第２のセクタは静止している板状部材と擦れるだけなので、セクタの破損や磨耗を低減することができる。   To achieve this object, the present invention as claimed in claim 1 is a sector drive having a sector substrate having a shutter opening and first and second sectors that cover the shutter opening by rotating in opposite directions. A device having an opening at a position corresponding to the shutter opening, provided between the first sector and the second sector, and the first and second sectors when the shutter opening is closed It is set as the structure which has a plate-shaped member which overlaps a part of. Since the plate-like member is provided between the first sector and the second sector, the first and second sectors do not rub against each other directly, and the first and second sectors are stationary. Since it only rubs against the plate-like member, the damage and wear of the sector can be reduced.

また、請求項１記載の前記セクタ駆動装置は、例えば請求項２記載のように、電源が切られている際、前記第１及び第２のセクタが前記シャッタ開口を閉じているように構成されても良い。オフの状態では撮像素子の受光部を保護するため、開口を閉じておく必要がある。このため、一般的にオフの状態ではセクタが重なり合う状態とされる。このような場合でも、本発明のようにセクタ間にセパレートプレートを設けることでセクタ同士が擦り合うことを防止でき、セクタの破損や磨耗を低減することができる。   The sector drive device according to claim 1 is configured such that, when the power is turned off, for example, the first and second sectors close the shutter opening when the power is turned off. May be. In the off state, the opening needs to be closed in order to protect the light receiving portion of the image sensor. For this reason, the sectors are generally overlapped in the off state. Even in such a case, by providing a separate plate between the sectors as in the present invention, it is possible to prevent the sectors from rubbing with each other and to reduce the damage and wear of the sectors.

また、請求項１記載の前記セクタ駆動装置は、例えば請求項３記載のように、前記第１のセクタが前記シャッタ開口から入射する光量を減少させる絞り部があるように構成されても良い。セクタの一方を絞り用のセクタとして使用できるように構成することで、セクタ駆動装置を小型化することができる。また、このように構成した場合でも本発明の構成を適用することで、セクタ同士が擦り合うことを防止でき、セクタの破損や磨耗を低減することができる。   Further, the sector drive device according to claim 1 may be configured such that there is a diaphragm portion that reduces the amount of light incident on the first sector from the shutter opening, for example, according to claim 3. By configuring so that one of the sectors can be used as an aperture sector, the sector driving device can be reduced in size. Further, even in such a configuration, by applying the configuration of the present invention, it is possible to prevent the sectors from rubbing with each other and to reduce the damage and wear of the sectors.

本発明によれば、閉じた状態でのセクタの外観を損ねないセクタ駆動装置を実現することができる。   According to the present invention, it is possible to realize a sector drive device that does not impair the appearance of the sector in the closed state.

以下、本発明を実施するための最良の形態を図面と共に詳細に説明する。   Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

図１は、本発明の実施例１によるセクタ駆動装置１０の外観を示す上視図である。図１に示すように、セクタ駆動装置１０は、セクタ基板２１上に羽根受け板１１が覆いかぶさっており、この間にセクタなどが収納された構成を有する。羽根受け板１１には、後述する撮像素子へ被写体像を入射させるための開口１２と、同じく後述するセクタを駆動するためのセクタレバー１４の可動領域となる逃げ穴１３とが設けられている。   FIG. 1 is a top view showing an appearance of a sector drive device 10 according to a first embodiment of the present invention. As shown in FIG. 1, the sector drive device 10 has a configuration in which a blade receiving plate 11 is covered on a sector substrate 21, and a sector or the like is accommodated therebetween. The blade receiving plate 11 is provided with an opening 12 for allowing a subject image to enter a later-described image sensor and a relief hole 13 serving as a movable region of a sector lever 14 for driving a sector, which will be described later.

次に、図１におけるＡ−Ａ断面構造を図２に示し、これを用いてセクタ駆動装置１０のより詳細な構成を説明する。図２に示すように、セクタ駆動装置１０は、セクタ基板２１上に、固体撮像装置１００に入射する光量を規制する開口２８を有した開口プレート１８と絞り用セクタ１７と被写体像を入射させる開口３８を有したセパレートプレート１６とシャッタ用セクタ１５とが順に設けられ、これらが羽根受け板１１により覆われた構成を有する。セクタ基板２１と羽根受け板１１とはセクタ（１７，１５）を収納するためのセクタ室を形成し、これがセパレートプレート１６により２つに区切られている。区切られたセクタ室の一方には絞り用セクタ１７が収納され、他方にはシャッタ用セクタ１５が収納される。セパレートプレート１６は、絞り用セクタ１７及びシャッタ用セクタ１５と重なるようになっており、シャッタ開口１２に対応する位置に開口３８が設けてある。なお、本実施例では、２枚のセクタ（１７，１５）を用いてシャッタ開口１２を開閉するように構成された場合を例に挙げる。したがって、絞り用セクタ１７はシャッタ用セクタとしても機能する。   Next, FIG. 2 shows a cross-sectional structure taken along the line AA in FIG. 1, and a more detailed configuration of the sector drive device 10 will be described using this. As shown in FIG. 2, the sector drive device 10 includes an aperture plate 18 having an aperture 28 that restricts the amount of light incident on the solid-state imaging device 100, an aperture sector 17, and an aperture through which a subject image is incident. The separate plate 16 having the number 38 and the shutter sector 15 are provided in order, and these are covered with the blade receiving plate 11. The sector substrate 21 and the blade receiving plate 11 form a sector chamber for housing the sectors (17, 15), which is divided into two by a separate plate 16. An aperture sector 17 is accommodated in one of the partitioned sector chambers, and a shutter sector 15 is accommodated in the other. The separate plate 16 overlaps the aperture sector 17 and the shutter sector 15, and an opening 38 is provided at a position corresponding to the shutter opening 12. In this embodiment, a case where the shutter opening 12 is opened and closed using two sectors (17, 15) will be described as an example. Accordingly, the aperture sector 17 also functions as a shutter sector.

シャッタ用セクタ１５および絞り用セクタ１７は１つのピン３０により駆動され、開口１２を開閉する。ピン３０はモータの回転軸２０に取り付けられたセクタレバー１９の先端付近に設けられる。回転軸２０の動力によりセクタレバー１９が回動されると、ピン３０に係合された２枚のセクタ（１５，１７）が揺動し、開口１２が開閉される。   The shutter sector 15 and the aperture sector 17 are driven by one pin 30 to open and close the opening 12. The pin 30 is provided in the vicinity of the tip of the sector lever 19 attached to the rotating shaft 20 of the motor. When the sector lever 19 is rotated by the power of the rotating shaft 20, the two sectors (15, 17) engaged with the pin 30 swing and the opening 12 is opened and closed.

回転軸２０には永久磁石のロータが圧入され、コイルが巻回されたステータ２２によりステップモータとして動作する。また、セクタ基板２１の下部はアッパーカバー２３によりカバーされる。   A rotor of a permanent magnet is press-fitted into the rotary shaft 20 and operates as a step motor by a stator 22 around which a coil is wound. The lower portion of the sector substrate 21 is covered with an upper cover 23.

以上のように、セクタ室を２つに分割し、それぞれに１つのセクタを収納する構成とすることで、セクタ同士が直接ぶつかり合うことがなくなり、セクタの表面に傷が付きにくくなる。よって開口にセクタを進入させて開口を閉じた状態にしていても、外観を損ねることがない。   As described above, by dividing the sector chamber into two and storing each sector, the sectors do not directly collide with each other and the surface of the sector is hardly damaged. Therefore, even if the sector is made to enter the opening and the opening is closed, the appearance is not impaired.

シャッタ用セクタ１５および絞り用セクタ１７の動作を図５、図６を参照して説明する。つまり、シャッタ用セクタ１５及び絞り用セクタ１７は、開口１２から退避した全開の状態（図５）から開口１２の領域に進入した全閉の状態（図６）若しくはこの全閉の状態から全開の状態にするときには、各セクタ（１５，１７）が協働して動く。このため、全開の状態から全閉の状態にするときは、セクタ（１５，１７）が相反する方向（お互いが近づく方向）に移動され、セクタ（１５，１７）が重なって開口１２の領域に進入することによって開口１２を閉じる。セクタ（１５，１７）が開口１２を閉じたとき、セクタ（１５，１７）の羽根受け板１１の開口１２から見える範囲が少なくとも直接ぶつからないようにセパレートプレート１６が設けられている。本実施の形態のセパレートプレート１６は、開口１２や２８と同径の開口３８を設けて、その開口３８周辺は板状部材で覆っている構成となっている。   The operations of the shutter sector 15 and the aperture sector 17 will be described with reference to FIGS. In other words, the shutter sector 15 and the aperture sector 17 are opened from the fully opened state retracted from the opening 12 (FIG. 5) to the fully closed state entering the region of the opening 12 (FIG. 6) or from the fully closed state to the fully opened state. When entering the state, each sector (15, 17) moves in cooperation. For this reason, when switching from the fully open state to the fully closed state, the sectors (15, 17) are moved in opposite directions (directions toward each other), and the sectors (15, 17) overlap and enter the region of the opening 12. The opening 12 is closed by entering. When the sector (15, 17) closes the opening 12, a separate plate 16 is provided so that at least the range visible from the opening 12 of the blade receiving plate 11 of the sector (15, 17) does not collide directly. The separate plate 16 of the present embodiment has an opening 38 having the same diameter as the openings 12 and 28, and the periphery of the opening 38 is covered with a plate-like member.

また、開口２８直下の領域には図３に示すような固体撮像素子１００をドッキングするためのドッキングベイ２４が設けられている。なお、図３は固体撮像装置１００の断面である。   Further, a docking bay 24 for docking the solid-state imaging device 100 as shown in FIG. FIG. 3 is a cross section of the solid-state imaging device 100.

図３に示すように、固体撮像装置１００は、カメラ基板１１７上に撮像素子１１６と周辺回路素子１２０とを有し、これらがホルダ１１１に収納されている。ホルダ１１１は１つ以上のレンズ（これをレンズ群１１４という）が取り付けられたレンズホルダ１１２を保持する。レンズホルダ１１２の上部、すなわち開口２８下に位置する領域には絞り開口１１３が設けられ、開口２８からの光がレンズ群１１４を介して撮像素子１１６に入射されるように構成されている。   As illustrated in FIG. 3, the solid-state imaging device 100 includes an imaging element 116 and a peripheral circuit element 120 on a camera substrate 117, and these are accommodated in a holder 111. The holder 111 holds a lens holder 112 to which one or more lenses (referred to as a lens group 114) are attached. A diaphragm opening 113 is provided in an upper portion of the lens holder 112, that is, in a region located below the opening 28, and is configured such that light from the opening 28 enters the image sensor 116 through the lens group 114.

次に、セクタ駆動装置１０の分解図を用いて、これの構造を説明する。図４に示すように、セクタ駆動装置１０はセクタ基板２１上に、開口プレート１８と絞り用セクタ１７とセパレートプレート１６とシャッタ用セクタ１５と羽根受け板１１とが順に配置される。   Next, the structure of the sector drive device 10 will be described with reference to an exploded view. As shown in FIG. 4, in the sector driving device 10, an opening plate 18, a diaphragm sector 17, a separation plate 16, a shutter sector 15, and a blade receiving plate 11 are arranged in order on a sector substrate 21.

セクタ基板２１に取り付けられた回転軸２０にはピン３０が設けられたセクタレバー１９が取り付けられる。また、セクタ基板２１には絞り用セクタ１７の回転中心軸となるピン３１と、シャッタ用セクタ１５の回転中心軸となるピン３２とが設けられている。ピン３１はセクタプレート１８に設けられた穴３３を介して、絞り用セクタ１７に設けられた穴２６に係合される。一方、ピン３２は開口プレート１８に設けられた穴３４およびセパレートプレート１６に設けられた穴３５を介して、シャッタ用セクタ１５に設けられた穴３９に係合される。そして、ピン３１，３２を介してセクタ基板２１とセパレートプレート１６が固定されている。さらに、駆動用のピン３０は開口プレート１８に設けられた逃げ穴２９を介して、絞り用セクタ１７のカム穴２７およびシャッタ用セクタ１５のカム穴２５に係合され、さらに羽根受け板１１の逃げ穴１３まで突出している。   A sector lever 19 provided with pins 30 is attached to the rotary shaft 20 attached to the sector substrate 21. The sector substrate 21 is provided with a pin 31 serving as a rotation center axis of the aperture sector 17 and a pin 32 serving as a rotation center axis of the shutter sector 15. The pin 31 is engaged with a hole 26 provided in the diaphragm sector 17 through a hole 33 provided in the sector plate 18. On the other hand, the pin 32 is engaged with a hole 39 provided in the shutter sector 15 via a hole 34 provided in the opening plate 18 and a hole 35 provided in the separate plate 16. The sector substrate 21 and the separate plate 16 are fixed via pins 31 and 32. Further, the driving pin 30 is engaged with the cam hole 27 of the diaphragm sector 17 and the cam hole 25 of the shutter sector 15 through the escape hole 29 provided in the opening plate 18, and It protrudes to the escape hole 13.

セクタ基板２１には上述した固体撮像装置１００に光を入射させるための開口３６が設けられている。また、開口プレート１８、セパレートプレート１６および羽根受け板１１にも、開口３６と対応する位置に開口２８、３８、１２が設けられており、固体撮像装置１００へ光が入射できるように構成されている。そして、セパレートプレート１６が開口１２の開閉時にセクタ（１５，１７）の移動領域全域において両セクタ（１５，１７）と重なるようになっている。さらに、絞り用セクタ１７の所定の箇所には絞り用の小さな開口３７が設けられており、固体撮像装置１００へ入射する光量を減らすことができるように構成されている。   The sector substrate 21 is provided with an opening 36 for allowing light to enter the solid-state imaging device 100 described above. The aperture plate 18, the separate plate 16, and the blade receiving plate 11 are also provided with apertures 28, 38, and 12 at positions corresponding to the aperture 36 so that light can enter the solid-state imaging device 100. Yes. The separate plate 16 overlaps both sectors (15, 17) in the entire moving region of the sector (15, 17) when the opening 12 is opened and closed. Further, a small aperture 37 is provided at a predetermined position of the diaphragm sector 17 so that the amount of light incident on the solid-state imaging device 100 can be reduced.

以上のように、本実施例によるセクタ駆動装置１０は、セクタ室が２つに分割され、それぞれに１つのセクタが収納されている。なお、本実施例では２つのセクタを用いた場合を例に挙げたが、本発明はこれに限定されず、例えば開口を開く２枚のセクタと、開口を閉じる２枚のセクタとの合計４枚のセクタを用いた構成であっても同様に適用することができる。すなわち、電源を切っている状態で重なり合うように構成された２枚のセクタ間にセパレートプレートを配設し、これらが直接擦りあわないように構成することで、セクタの表面に傷が付くおそれを低減することが可能となる。   As described above, in the sector driving apparatus 10 according to the present embodiment, the sector chamber is divided into two, and each sector is accommodated. In this embodiment, the case where two sectors are used has been described as an example. However, the present invention is not limited to this. For example, a total of four sectors including two sectors that open an opening and two sectors that close an opening. A configuration using a single sector can be similarly applied. In other words, by arranging a separate plate between two sectors that are configured to overlap each other when the power is turned off so that they do not rub against each other directly, there is a risk of scratching the surface of the sector. It becomes possible to reduce.

上記した実施例１は本発明を実施するための例にすぎず、本発明はこれらに限定されるものではなく、これらの実施例を種々変形することは本発明の範囲内であり、更に本発明の範囲内において、他の様々な実施例が可能であることは上記記載から自明である。例えば、絞り用セクタ１７には小径の絞り用開口３７が設けられていたが、これに限らず小径の穴にせず開口を覆うことが可能な位置にＮＤフィルタを設けるようにしてもよい。   The first embodiment described above is merely an example for carrying out the present invention, and the present invention is not limited to these. Various modifications of these embodiments are within the scope of the present invention. It is obvious from the above description that various other embodiments are possible within the scope of the invention. For example, the diaphragm sector 17 is provided with a small-diameter diaphragm opening 37. However, the present invention is not limited to this, and an ND filter may be provided at a position that can cover the opening without forming a small-diameter hole.

本発明の実施例１によるセクタ駆動装置１０の構成を示す上視図である。It is an upper view which shows the structure of the sector drive device 10 by Example 1 of this invention. 図１に示すセクタ駆動装置１０のＡ−Ａ断面図である。It is AA sectional drawing of the sector drive device 10 shown in FIG. 本発明の実施例１によるセクタ駆動装置１０にドッキングされる固体撮像装置１００の構成を示すＡ−Ａ断面図である。It is AA sectional drawing which shows the structure of the solid-state imaging device 100 docked by the sector drive device 10 by Example 1 of this invention. 本発明の実施例１によるセクタ駆動装置１０の分解図である。1 is an exploded view of a sector drive device 10 according to a first embodiment of the present invention. セクタ駆動装置の全開状態を示す図である。It is a figure which shows the full open state of a sector drive device. セクタ駆動装置の全閉状態を示す図である。It is a figure which shows the fully closed state of a sector drive device.

符号の説明Explanation of symbols

１０ セクタ駆動装置
１１ 羽根受け板
１２、２８、３６、３７、３８ 開口
１３、２５、２７、２９ カム穴
１４ セクタレバー
１５ シャッタ用セクタ
１６ セパレートプレート
１７ 絞り用セクタ
１８ セクタプレート
１９ セクタレバー
２０ 回転シャフト
２１ セクタ基板
２２ スタータ
２３ アッパーカバー
２４ ドッキングベイ
２６、３３、３４、３５ カム穴
３０、３１、３２ ピン DESCRIPTION OF SYMBOLS 10 Sector drive device 11 Blade receiving plate 12, 28, 36, 37, 38 Opening 13, 25, 27, 29 Cam hole 14 Sector lever 15 Sector for shutter 16 Separate plate 17 Sector for aperture 18 Sector plate 19 Sector lever 20 Rotating shaft 21 Sector board 22 Starter 23 Upper cover 24 Docking bay 26, 33, 34, 35 Cam hole 30, 31, 32 Pin

Claims (3)

シャッタ開口を有するセクタ基板と、相反する方向に回転させることで前記シャッタ開口を覆う第１および第２のセクタとを有するセクタ駆動装置であって、
前記シャッタ開口に対応する位置に開口を有し、前記第１のセクタと前記第２のセクタとの間に設けられ、前記シャッタ開口の閉鎖時に前記第１及び第２のセクタの一部と重なる板状部材を有することを特徴とするセクタ駆動装置。 A sector drive device having a sector substrate having a shutter opening, and first and second sectors that cover the shutter opening by rotating in opposite directions,
An opening is provided at a position corresponding to the shutter opening, provided between the first sector and the second sector, and overlaps a part of the first and second sectors when the shutter opening is closed. A sector drive device comprising a plate-like member. 前記第１及び第２のセクタは電源が切られている際、前記シャッタ開口を閉じていることを特徴とする請求項１記載のセクタ駆動装置。   2. The sector driving apparatus according to claim 1, wherein the first and second sectors close the shutter opening when the power is turned off. 前記第１のセクタは前記シャッタ開口から入射する光量を減少させる絞り部が設けられていることを特徴とする請求項１記載のセクタ駆動装置。
2. The sector drive device according to claim 1, wherein the first sector is provided with a diaphragm portion for reducing the amount of light incident from the shutter opening.
JP2004327254A 2004-11-11 2004-11-11 Sector driving device Pending JP2006138971A (en)

Priority Applications (1)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03166532A (en) * 1989-11-27 1991-07-18 Copal Co Ltd Light shielding vane device for camera
JPH0590458U (en) * 1992-05-21 1993-12-10 オリンパス光学工業株式会社 Light control device
JPH0687940U (en) * 1993-06-02 1994-12-22 ニスカ株式会社 Camera diaphragm
JPH07149232A (en) * 1994-08-19 1995-06-13 Hitachi Ltd Gutter structure of railway rolling stock
JPH0739032U (en) * 1993-12-25 1995-07-14 株式会社コパル Shading blade device for camera
JPH1138469A (en) * 1997-07-23 1999-02-12 Copal Co Ltd Camera shutter
JP2001075146A (en) * 2000-07-26 2001-03-23 Nidec Copal Corp Image pickup device
JP2003309960A (en) * 2002-04-16 2003-10-31 Canon Electronics Inc Magnet drive device, optical device, and camera

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03166532A (en) * 1989-11-27 1991-07-18 Copal Co Ltd Light shielding vane device for camera
JPH0590458U (en) * 1992-05-21 1993-12-10 オリンパス光学工業株式会社 Light control device
JPH0687940U (en) * 1993-06-02 1994-12-22 ニスカ株式会社 Camera diaphragm
JPH0739032U (en) * 1993-12-25 1995-07-14 株式会社コパル Shading blade device for camera
JPH07149232A (en) * 1994-08-19 1995-06-13 Hitachi Ltd Gutter structure of railway rolling stock
JPH1138469A (en) * 1997-07-23 1999-02-12 Copal Co Ltd Camera shutter
JP2001075146A (en) * 2000-07-26 2001-03-23 Nidec Copal Corp Image pickup device
JP2003309960A (en) * 2002-04-16 2003-10-31 Canon Electronics Inc Magnet drive device, optical device, and camera

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