JPH08110460A - Lens driving device, optical device and camera - Google Patents
Lens driving device, optical device and cameraInfo
- Publication number
- JPH08110460A JPH08110460A JP6272975A JP27297594A JPH08110460A JP H08110460 A JPH08110460 A JP H08110460A JP 6272975 A JP6272975 A JP 6272975A JP 27297594 A JP27297594 A JP 27297594A JP H08110460 A JPH08110460 A JP H08110460A
- Authority
- JP
- Japan
- Prior art keywords
- rack member
- optical axis
- output shaft
- lens
- driving device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Lens Barrels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は駆動源の出力軸に噛合す
るラック部材を介して、移動レンズ群を光軸方向に移動
させるレンズ駆動装置、光学装置およびカメラに関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens driving device, an optical device and a camera for moving a moving lens group in the optical axis direction via a rack member meshing with an output shaft of a driving source.
【０００２】[0002]
【従来の技術】図４は、従来のこの種のレンズ駆動装置
を用いたレンズユニットの一例として、ビデオカメラ用
リアフォーカスズームレンズの鏡筒主要断面図を示すも
ので、図４において、１１は第１レンズ群１を保持する
１群固定筒、１２は第２レンズ群２を保持する２群移動
環、１３は第３レンズ群３を保持する３群固定筒、１４
は第４レンズ群４を保持する４群移動環、１５は上記各
部材を備えた鏡筒を装着する光学装置およびカメラであ
る。2. Description of the Related Art FIG. 4 is a main sectional view of a lens barrel of a rear focus zoom lens for a video camera as an example of a lens unit using a conventional lens driving device of this type. In FIG. A first-group fixed cylinder holding the first lens group 1, a second-group moving ring 12 holding the second lens group 2, a third-group fixed cylinder holding the third lens group 3, 14
Is a fourth group moving ring that holds the fourth lens group 4, and 15 is an optical device and a camera that mounts a lens barrel including the above-mentioned members.
【０００３】上記第１レンズ群１及び第３レンズ群３は
固定レンズ群、第２レンズ群２は変倍作用を行なう移動
レンズ群、第４レンズ群４は像面補正及び合焦作用を行
なう移動レンズ群である。そして、２群移動環１２は光
軸５に平行に配設された２本のガイドバー６ａ、６ｂに
より保持され、この２群移動環１２の支持部１２ｅ、１
２ｆに保持され、光軸に平行に配置された駆動源として
の変倍ステッピングモーター７の出力軸７ａに噛合した
ラック部材８により、出力軸７ａの回転に合わせて光軸
に沿って移動可能となっている。The first lens group 1 and the third lens group 3 are fixed lens groups, the second lens group 2 is a moving lens group that performs a zooming action, and the fourth lens group 4 is an image plane correcting and focusing action. It is a moving lens group. The second group moving ring 12 is held by two guide bars 6a and 6b arranged in parallel with the optical axis 5, and the supporting portions 12e and 1e of the second group moving ring 12 are held.
The rack member 8 held at 2f and meshed with the output shaft 7a of the variable power stepping motor 7 as a drive source arranged parallel to the optical axis makes it possible to move along the optical axis in accordance with the rotation of the output shaft 7a. Has become.
【０００４】図５は図４に於ける２群移動環１２の駆動
部の要部拡大図、図６はその斜視図である。図５、図６
において、２群移動環１２は光軸に平行に配設された第
１のガイドバー６ａに嵌合保持される嵌合穴１２ａ、１
２ｂを設けたスリーブ部１２ｃと、光軸に平行に配設さ
れた第２のガイドバー６ｂに回転規制されるＵ溝１２ｄ
とにより、光軸に沿って移動可能に構成されている。こ
の２群移動環１２には光軸と直交方向に平板状の支持部
１２ｅ、１２ｆが設けられており、この各々の支持部１
２ｅ、１２ｆにはラック部材８を嵌合保持する嵌合穴１
２ｇ、１２ｈが設けてあり、各嵌合穴中心線は光軸と平
行になっている。FIG. 5 is an enlarged view of a main part of a drive portion of the second group moving ring 12 in FIG. 4, and FIG. 6 is a perspective view thereof. 5 and 6
In the above, the second group moving ring 12 is fitted with fitting holes 12a, 1 which are fitted and held by a first guide bar 6a arranged parallel to the optical axis.
A sleeve portion 12c provided with 2b and a U-shaped groove 12d whose rotation is restricted by a second guide bar 6b arranged in parallel with the optical axis.
And are configured to be movable along the optical axis. The second group moving ring 12 is provided with flat plate-shaped supporting portions 12e and 12f in the direction orthogonal to the optical axis.
Fitting holes 1 for fitting and holding the rack member 8 in 2e and 12f
2g and 12h are provided, and the center line of each fitting hole is parallel to the optical axis.
【０００５】一方ラック部材８は前記嵌合穴１２ｇ、１
２ｈに回動可能に嵌合支持する固定軸８ｄを有し、この
固定軸８ｄと平行に複数のラック歯８ａ、８ｂが設けら
れている。このラック歯８ａ、８ｂの噛合するモーター
出力軸７ａの反対側には該モーター出力軸を挟持する形
で押え部８ｃが設けられている。そして、出力軸７ａと
ラック歯８ａ、８ｂとのガタを無くす為に、出力軸７ａ
に直交する方向に挟み力９ａ、９ｂ、９ｃが発生するよ
うに、バネ部材（不図示）が配設されている。On the other hand, the rack member 8 has the fitting holes 12g, 1
It has a fixed shaft 8d rotatably fitted and supported on 2h, and a plurality of rack teeth 8a and 8b are provided in parallel with the fixed shaft 8d. A holding portion 8c is provided on the opposite side of the motor output shaft 7a where the rack teeth 8a and 8b mesh with each other so as to sandwich the motor output shaft. Then, in order to eliminate looseness between the output shaft 7a and the rack teeth 8a and 8b, the output shaft 7a
A spring member (not shown) is arranged so that the sandwiching forces 9a, 9b, and 9c are generated in a direction orthogonal to.
【０００６】次に動作について説明する。モーター出力
軸７ａが回転すると、ラック部材８を介して駆動力が伝
達され、２群移動環２が光軸に沿って移動する。この
時、前述したように、ラック歯８ａ、８ｂと押え部８ｃ
とによりモーター出力軸７ａがガタ無く挟持され、か
つ、モーター出力軸７ａの光軸に対する位置ズレあるい
は、モーター出力軸７ａの曲がりによる振れを、ラック
部材８が固定軸８ｄを中心にモーター出力軸７ａに合わ
せて回転して吸収する為、２群移動環１２と、ガイドバ
ー６ａ、６ｂの間には余計な負荷はかからず、非常にス
ムーズでかつ精密に２群移動環１２を移動させることが
できる。Next, the operation will be described. When the motor output shaft 7a rotates, the driving force is transmitted through the rack member 8 and the second group moving ring 2 moves along the optical axis. At this time, as described above, the rack teeth 8a, 8b and the pressing portion 8c
Causes the motor output shaft 7a to be clamped without rattling, and the rack member 8 causes the motor output shaft 7a to rotate around the fixed shaft 8d due to the positional deviation of the motor output shaft 7a from the optical axis or the deflection due to the bending of the motor output shaft 7a. The second group moving ring 12 is very smoothly and precisely moved without any extra load between the second group moving ring 12 and the guide bars 6a and 6b. You can
【０００７】[0007]
【発明が解決しようとしている課題】しかしながら、上
記従来例では、出力軸７ａの光軸に対する位置ズレある
いは出力軸７ａの曲がりによる振れをラック部材８の回
転により吸収する際に、光軸に対し直交する方向に微少
な負荷がかかり、支持部１２ｄ、１２ｅを介して２群移
動環１２を光軸と直交方向に動かそうとする力が発生す
る。この時、２群移動環１２の嵌合穴１２ａ、１２ｂと
ガイドバー６ａとの嵌合ガタあるいはＵ溝１２ｃとガイ
ドバー６ｂとの嵌合ガタ分、２群移動環１２が光軸と直
交する方向に動いてしまい、ズーミング中に、撮影画が
ゆれてしまうという問題点があった。However, in the above-mentioned conventional example, when the displacement of the output shaft 7a with respect to the optical axis or the shake due to the bending of the output shaft 7a is absorbed by the rotation of the rack member 8, the optical axis is orthogonal to the optical axis. A slight load is applied in the direction in which the second group moving ring 12 is moved through the support portions 12d and 12e, and a force is generated to move the second group moving ring 12 in the direction orthogonal to the optical axis. At this time, the amount of looseness between the fitting holes 12a and 12b of the second group moving ring 12 and the guide bar 6a or the amount of looseness between the U groove 12c and the guide bar 6b makes the second group moving ring 12 orthogonal to the optical axis. There was a problem that the captured image was shaken during zooming because it moved in the direction.
【０００８】この問題点を解消するために従来は、移動
環１２とガイドバー６ａ、６ｂ間にガタ寄せの力がかか
るような付勢バネを設けたり、ガイドバーを磁性材料で
作り、移動環にマグネットを追加し、磁気吸引力でガタ
寄せをして、撮像画のゆれを防止している。In order to solve this problem, conventionally, a moving spring 12 is provided between the guide bars 6a and 6b with an urging spring which applies a backlashing force, or the guide bar is made of a magnetic material. A magnet is added to the back of the camera, and the magnetic attraction force is used to rattle the captured image to prevent it from shaking.
【０００９】しかし、いづれも移動環１２の不都合な動
きを防止するための部品追加が必要になり、コストアッ
プおよび製作工程の劣化を伴う等の問題点があった。However, in each case, it is necessary to add parts to prevent the undesired movement of the moving ring 12, resulting in problems such as an increase in cost and deterioration of the manufacturing process.
【００１０】本出願に係る第１乃至第５の発明の目的
は、部品点数を追加することなく、移動環の不都合な動
きを防止して、移動レンズ群の移動による撮影画のゆれ
を防止する事である。An object of the first to fifth inventions according to the present application is to prevent undesired movement of the moving ring without adding the number of parts, and to prevent fluctuation of a photographed image due to movement of the moving lens group. It is a thing.
【００１１】本出願に係る第６の発明の目的は、上記請
求項１のレンズ駆動装置を備えた光学装置を得る事であ
る。A sixth object of the present invention is to obtain an optical device including the lens driving device according to the first aspect.
【００１２】本出願に係る第７の発明の目的は、上記請
求項１のレンズ駆動装置を備えたカメラを得る事であ
る。A seventh object of the present invention is to obtain a camera provided with the lens driving device according to claim 1.
【００１３】[0013]
【課題を解決するための手段】上記の目的を達成するた
めに、本出願に係る第１の発明は、駆動源の出力軸に噛
合するラック部材を介して、移動レンズ群を光軸方向に
移動させるレンズ駆動装置において、前記ラック部材
の前記出力軸に対する挟持力により、前記移動レンズ群
に光軸方向と直交する軸を中心とする回転モーメントを
発生させる回転モーメントの発生手段を設けた事によ
り、移動レンズ群とガイドバー間の嵌合ガタを片寄せす
る事ができ、ズーミング中の撮影画のゆれを防止する事
ができる。また、ラック歯の一部を低く（請求項２）、
ラック部材を光軸に対し傾け（請求項３）、駆動源の出
力軸を光軸に対し傾ける（請求項４）等いずれかによっ
て、前記回転モーメント発生手段を構成したことによ
り、回転モーメント発生のために特別の専用部材を必要
とせず、簡単かつ安価な構成とすることができる。しか
も、駆動源としてステッピングモータ（請求項５）を用
いたことにより、移動レンズ群を円滑に移動させること
ができる。In order to achieve the above object, a first invention according to the present application provides a moving lens group in the optical axis direction via a rack member meshing with an output shaft of a drive source. In the lens driving device to be moved, the moving lens group is provided with a rotation moment generating means for generating a rotation moment about the axis orthogonal to the optical axis direction by the clamping force of the rack member with respect to the output shaft. It is possible to shift the fitting backlash between the movable lens group and the guide bar to one side, and it is possible to prevent the fluctuation of the photographed image during zooming. Further, a part of the rack teeth is lowered (claim 2),
Since the rotation moment generating means is configured by tilting the rack member with respect to the optical axis (Claim 3) and tilting the output shaft of the drive source with respect to the optical axis (Claim 4), the rotation moment is generated. Therefore, a special member is not required, and the structure can be simple and inexpensive. Moreover, since the stepping motor (claim 5) is used as the drive source, the movable lens group can be moved smoothly.
【００１４】本出願に係る第２の発明は、上記第１の発
明の作用効果を有するレンズ駆動装置を備えた光学装置
を得ることができる。According to the second invention of the present application, it is possible to obtain an optical device including a lens driving device having the effects of the first invention.
【００１５】本出願に係る第３の発明は、上記第１の発
明の作用効果を有するレンズ駆動装置を備えたカメラを
得ることができる。According to the third invention of the present application, it is possible to obtain a camera provided with the lens driving device having the function and effect of the first invention.
【００１６】[0016]
第１の実施例 図１は本発明の特徴を最もよく表す図面であり、同図に
おいて、前記図５、図６に示す従来例と同一部材には同
一符号を付して重複説明を省略する。First Embodiment FIG. 1 is a view best showing the features of the present invention. In FIG. 1, the same members as those of the conventional example shown in FIGS. .
【００１７】本実施例ではラック部材２０のラック歯の
一部２０ａを低くして、出力軸７ａに当接しないように
すき間ｔ1 を設けたもので、他の構成は従来例と全く同
じである。ラック部材２０は２群移動環１２の支持部１
２ｅ、１２ｆに光軸に平行に嵌合保持されている為、出
力軸７ａを挟持する挟持力２１ｂ、２１ｃがオフセット
する事により、ラック部材２０に回転モーメントがかか
り、その結果、２群移動環１２には矢印２２で示すよう
に、光軸と直交する軸を中心とする回転モーメントが生
ずる。この結果ガイドバー６ａと嵌合部１２ａ、１２ｂ
との嵌合ガタが片寄せ除去される事となる。 第２の実施例 図２は第２の実施例を示す要部拡大図であり、前記図
５、図６に示す従来例と全く同じ形状のラック部材３０
を光軸に対し角度θ2 傾け、ラック歯の一部３０ａと出
力軸７ａとの間にすき間ｔ2 を設けたものである。上記
のように、ラック部材３０を傾けるには、２群移動環３
２のラック支持部３２ｅ、３２ｆに各々設けてある嵌合
穴３２ｅ−１、３２ｆ−１を光軸方向に対しオフセット
する事により実現でき、あるいはラック部材３０の回転
軸を光軸方向に対し傾ける事によっても実現できる。In this embodiment, a part of the rack teeth 20a of the rack member 20 is lowered to provide a clearance t 1 so as not to abut against the output shaft 7a. Other configurations are exactly the same as the conventional example. is there. The rack member 20 is the support portion 1 of the second group moving ring 12.
Since they are fitted and held in parallel with the optical axis by 2e and 12f, the clamping forces 21b and 21c that clamp the output shaft 7a are offset, so that a rotational moment is applied to the rack member 20, and as a result, the second group moving ring is moved. As indicated by an arrow 22, a rotational moment about the axis orthogonal to the optical axis is generated at 12. As a result, the guide bar 6a and the fitting portions 12a and 12b
The looseness of the mating with and will be offset. Second Embodiment FIG. 2 is an enlarged view of an essential part showing a second embodiment, and a rack member 30 having exactly the same shape as the conventional example shown in FIGS. 5 and 6 above.
Is inclined by an angle θ 2 with respect to the optical axis, and a gap t 2 is provided between the rack tooth portion 30a and the output shaft 7a. As described above, in order to tilt the rack member 30, the second group moving ring 3
This can be realized by offsetting the fitting holes 32e-1 and 32f-1 provided in the two rack supporting portions 32e and 32f with respect to the optical axis direction, or inclining the rotation axis of the rack member 30 with respect to the optical axis direction. It can be realized by things.
【００１８】上記の構成よりなる本実施例によっても、
前記第１の実施例同様、ラック部材３０の挟持力３３
ｂ、３３ｃにより、ラック部材３０に回転モーメントが
かかり、その結果、２群移動環３２に矢印３４で示す方
向に回転モーメントが生じ、ガイドバー６ａと嵌合部１
２ａ、１２ｂとの嵌合ガタが除去される。 第３の実施例 図３は第３の実施例を示す要部拡大図であり、前記図
５、図６に示す従来例の構成において、ステッピングモ
ーターの出力軸７ａを光軸に対し角度θ3 傾け、ラック
歯４０の一部４０ａと出力軸７ａとの間にすき間ｔ3 を
設けたもので、この構成によっても、前記第１、第２の
実施例と同様に、ラック部材４０の挟持力４１ｂ、４１
ｃによってラック部材４０に回転モーメントがかかり、
その結果、２群移動環１２に矢印４２の回転モーメント
がかかり、ガイドバー６ａと嵌合部１２ａ、１２ｂとの
嵌合ガタが除去される。According to this embodiment having the above-mentioned structure,
As in the first embodiment, the clamping force 33 of the rack member 30.
A rotational moment is applied to the rack member 30 by b and 33c, as a result, a rotational moment is generated in the second group moving ring 32 in the direction indicated by the arrow 34, and the guide bar 6a and the fitting portion 1 are engaged.
The fitting backlash with 2a and 12b is removed. Third Embodiment FIG. 3 is an enlarged view of an essential part showing a third embodiment. In the configuration of the conventional example shown in FIGS. 5 and 6, the output shaft 7a of the stepping motor is inclined by an angle θ 3 with respect to the optical axis. A gap t 3 is provided between the output shaft 7a and the part 40a of the rack teeth 40 by tilting. With this configuration, the clamping force of the rack member 40 is also the same as in the first and second embodiments. 41b, 41
A rotational moment is applied to the rack member 40 by c,
As a result, the rotation moment of the arrow 42 is applied to the second group moving ring 12, and the fitting backlash between the guide bar 6a and the fitting portions 12a and 12b is removed.
【００１９】[0019]
【発明の効果】以上説明したように、本出願に係る第１
の発明によれば、ラック部材のステッピングモーター出
力軸に対する挟持力を利用して移動レンズ群に回転モー
メントを与える回転モーメント発生手段を設けて構成し
たので、部品点数を増やす事無く、又、組込性も損なわ
ず、移動レンズ群を保持する移動環とガイドバー間の嵌
合ガタを片寄せ除去する事ができ、ズーミングによる撮
影画のゆれを防止する事ができる。As described above, the first aspect of the present application
According to the invention, since the rotation moment generating means for giving the rotation moment to the moving lens group is provided by utilizing the clamping force of the rack member with respect to the output shaft of the stepping motor, the number of parts can be increased without increasing the number of parts. The looseness of the fitting between the moving ring holding the moving lens group and the guide bar can be offset and removed, and the fluctuation of the captured image due to zooming can be prevented.
【００２０】また、回転モーメント発生手段をラック歯
の一部を低くする、ラック部材を光軸に対し傾ける、駆
動源の出力軸を光軸に対し傾ける等のいずれかによって
前記回転モーメント発生手段を構成したので、回転モー
メント発生のために特別の専用部材を必要とせず、簡単
かつ安価な構成とすることができる。しかも、駆動源と
してステッピングモータを用いたことにより、移動レン
ズ群を円滑に移動させることができるという効果があ
る。Further, the rotation moment generating means may be formed by lowering a part of the rack teeth, inclining the rack member with respect to the optical axis, or inclining the output shaft of the drive source with respect to the optical axis. Since it is configured, a special dedicated member is not required for generating the rotational moment, and the configuration can be simple and inexpensive. Moreover, since the stepping motor is used as the drive source, the moving lens group can be moved smoothly.
【００２１】本出願に係る第２の発明によれば、上記第
１の発明の作用効果を有するレンズ駆動装置を備えた光
学装置を得ることができるという効果がある。According to the second invention of the present application, there is an effect that it is possible to obtain an optical device including a lens driving device having the function and effect of the first invention.
【００２２】本出願に係る第３の発明によれば、上記第
１の発明の作用効果を有するレンズ駆動装置を備えたカ
メラを得ることができるいう効果がある。According to the third invention of the present application, there is an effect that it is possible to obtain a camera provided with the lens driving device having the function and effect of the first invention.
【図１】本発明の第１の実施例に係るレンズ駆動装置の
要部拡大断面図。FIG. 1 is an enlarged cross-sectional view of a main part of a lens driving device according to a first embodiment of the present invention.
【図２】本発明の第２の実施例に係るレンズ駆動装置の
要部拡大断面図。FIG. 2 is an enlarged cross-sectional view of a main part of a lens driving device according to a second embodiment of the present invention.
【図３】本発明の第３の実施例に係るレンズ駆動装置の
要部拡大断面図。FIG. 3 is an enlarged cross-sectional view of a main part of a lens driving device according to a third embodiment of the present invention.
【図４】従来のレンズ駆動装置を用いたレンズユニット
の鏡筒主要断面図。FIG. 4 is a main sectional view of a lens barrel of a lens unit using a conventional lens driving device.
【図５】従来のレンズ駆動装置の要部拡大断面図。FIG. 5 is an enlarged sectional view of a main part of a conventional lens driving device.
【図６】従来のレンズ駆動装置の斜視図。FIG. 6 is a perspective view of a conventional lens driving device.
２ 第２レンズ群（移動レンズ群） １２ ２群移動環 ６ａ、６ｂ ガイドバー ２０、３０、４０ ラック部材 ７ ステッピングモーター（駆動源） ７ａ ステッピングモーター出力軸 １５ 光学装置およびカメラ ｔ1 〜ｔ3 すき間（回転モーメント発生手段）2 the second lens group (movable lens) 12 2 group moving ring 6a, 6b guide bar 20, 30, 40 rack member 7 stepping motor (driving source) 7a stepping motor output shaft 15 optical apparatus and a camera t 1 ~t 3 gaps (Rotation moment generating means)
Claims (7)
介して、移動レンズ群を光軸方向に移動させるレンズ駆
動装置において、前記ラック部材の前記出力軸に対する
挟持力により、前記移動レンズ群に光軸方向と直交する
軸を中心とする回転モーメントを発生させる回転モーメ
ントの発生手段を設けた事を特徴とするレンズ駆動装
置。1. A lens driving device for moving a moving lens group in an optical axis direction via a rack member meshing with an output shaft of a drive source, wherein the moving lens group is held by a holding force of the rack member with respect to the output shaft. A lens driving device, characterized in that a rotation moment generating means for generating a rotation moment about an axis orthogonal to the optical axis direction is provided in the lens driving device.
出力軸の直交方向に対し前記ラック部材の挟持力がオフ
セットするようにラック歯の一部を低くした事を特徴と
する請求項１のレンズ駆動装置。2. The lens according to claim 1, wherein the rotation moment generating means lowers a part of rack teeth so that a holding force of the rack member is offset with respect to a direction orthogonal to the output shaft. Drive.
前記出力軸の直交方向に対し前記ラック部材の挟持力が
オフセットするように前記ラック部材を光軸に対し傾け
た事を特徴とする請求項１のレンズ駆動装置。3. The rotation moment generating means tilts the rack member with respect to the optical axis so that the holding force of the rack member is offset with respect to the direction orthogonal to the output shaft. 1. Lens drive device.
前記出力軸の直交方向に対し前記ラック部材の挟持力が
オフセットするように前記出力軸を光軸に対し傾けた事
を特徴とする請求項１のレンズ駆動装置。4. The rotation moment generating means tilts the output shaft with respect to the optical axis so that the holding force of the rack member is offset with respect to the direction orthogonal to the output shaft. 1. Lens drive device.
ことを特徴とする請求項１乃至４のいずれかのレンズ駆
動装置。5. The lens driving device according to claim 1, wherein the driving source is a stepping motor.
特徴とする光学装置。6. An optical device comprising the lens driving device according to claim 1.
特徴とするカメラ。7. A camera provided with the lens driving device according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6272975A JPH08110460A (en) | 1994-10-12 | 1994-10-12 | Lens driving device, optical device and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6272975A JPH08110460A (en) | 1994-10-12 | 1994-10-12 | Lens driving device, optical device and camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08110460A true JPH08110460A (en) | 1996-04-30 |
Family
ID=17521404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6272975A Pending JPH08110460A (en) | 1994-10-12 | 1994-10-12 | Lens driving device, optical device and camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08110460A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9470958B2 (en) | 2014-04-28 | 2016-10-18 | Canon Kabushiki Kaisha | Lens driving apparatus, lens barrel and optical apparatus |
| CN115097590A (en) * | 2022-05-30 | 2022-09-23 | 昆明北方红外技术股份有限公司 | Zooming guide driving mechanism of infrared optical system and control method |
-
1994
- 1994-10-12 JP JP6272975A patent/JPH08110460A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9470958B2 (en) | 2014-04-28 | 2016-10-18 | Canon Kabushiki Kaisha | Lens driving apparatus, lens barrel and optical apparatus |
| CN115097590A (en) * | 2022-05-30 | 2022-09-23 | 昆明北方红外技术股份有限公司 | Zooming guide driving mechanism of infrared optical system and control method |
| CN115097590B (en) * | 2022-05-30 | 2024-02-02 | 昆明北方红外技术股份有限公司 | Infrared optical system zooming guide driving mechanism and control method |
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