JPS63172205A - Lens barrel - Google Patents
Lens barrelInfo
- Publication number
- JPS63172205A JPS63172205A JP62004539A JP453987A JPS63172205A JP S63172205 A JPS63172205 A JP S63172205A JP 62004539 A JP62004539 A JP 62004539A JP 453987 A JP453987 A JP 453987A JP S63172205 A JPS63172205 A JP S63172205A
- Authority
- JP
- Japan
- Prior art keywords
- lens barrel
- stator
- ultrasonic motor
- ring
- focusing
- 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
- 239000000428 dust Substances 0.000 abstract description 3
- 230000009545 invasion Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 4
- 241001057181 Orcus Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Focusing (AREA)
- Lens Barrels (AREA)
- Automatic Focus Adjustment (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、自動合焦と、手動合焦とを切換可能にしたレ
ンズ鏡筒に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a lens barrel that is capable of switching between automatic focusing and manual focusing.
［従来の技術］
従来の自動合焦と手動合焦とを切換可能にしたレンズ鏡
筒としては、特開昭５９−１１１６２４に示されるよう
に、自動合焦の動力源として超音波モータを備え、超音
波モータのロータとステータ間の圧接離間を行うことに
より、自動合焦と手動合焦の切り換えを行っているもの
かある。[Prior Art] A conventional lens barrel capable of switching between automatic focusing and manual focusing is equipped with an ultrasonic motor as a power source for automatic focusing, as shown in Japanese Patent Laid-Open No. 59-111624. Some systems switch between automatic focusing and manual focusing by pressing and separating the rotor and stator of the ultrasonic motor.
［発明か解決しようとする問題点コ
しかしながら、前記の如き従来の技術においては、手動
合焦の際、超音波モータのロータとステータ間な離間す
るとその隙間にゴミが入り易くなリ、ゴミか付着すると
ロータとステータを圧接した時にロータの回転の妨げと
なり、回転効率が低下するとともに、耐久性に問題がて
るおそれかあるという問題点かあった。[Problems to be Solved by the Invention] However, in the conventional technology as described above, when the rotor and stator of the ultrasonic motor are separated from each other during manual focusing, it is easy for dust to enter the gap. If it adheres, it will impede the rotation of the rotor when the rotor and stator are brought into pressure contact with each other, reducing rotational efficiency and possibly causing problems in durability.
本発明は」二記問題点を解決し、ロータとステータ間を
離間することなく、自動合焦と手動合焦の切り換えを行
うことがてきるレンズ鏡筒な提供することを目的とする
。SUMMARY OF THE INVENTION It is an object of the present invention to solve the above two problems and provide a lens barrel that can switch between automatic focusing and manual focusing without separating the rotor and stator.
［問題点を解決する為の手段］
上記［１的を達成するための本発明の要旨とするところ
は、
自動合焦モードと、手動合焦モードとを切換可能にした
レンズ鏡筒１０において、
固定鏡筒２０と、
該固定鏡筒２０に前後移動可能なるも回動不能に支持さ
れた合焦用の移動鏡筒３０と、該移動鏡筒３０と前記固
定鏡筒２０との間に介在し、該移動鏡筒３０には螺合し
、該固定鏡筒２０には回動可能なるも前後移動不能に支
持され、手動回動０丁能なフォーカス部材４０と、該）
オーカス部材４０と前記固定鏡筒２ｏとの間に介装され
、両者のいずれか一方に連結されたステータ５３と、他
方に連結され、該ステータ５３と圧接し該ステータ５３
に発生する進行波により回動するロータ５５とより成る
リンク状の超音波モータ５０と、
前記固定鏡筒２ｏに装着され、自動合焦モード時には前
記超音波モータ５ｏのロータ５５とステータ５３とをさ
らに圧接させて保持する一方、手動合焦モード時には該
超音波モータ５ｏから離間して加圧をやめるとともに前
記フォーカス部材４０に摺接し、該フォーカス部材４ｏ
の回動を制動する加圧部材６５を有する切換機構６ｏと
を具備して成るレンズ鏡筒に存する。[Means for Solving the Problems] The gist of the present invention for achieving the above [1] is as follows: In a lens barrel 10 that is capable of switching between an automatic focusing mode and a manual focusing mode, a fixed lens barrel 20; a movable focusing lens barrel 30 supported by the fixed lens barrel 20 so as to be movable back and forth but not rotatable; a focus member 40 which is screwed into the movable lens barrel 30, is rotatably supported by the fixed lens barrel 20 but cannot be moved forward or backward, and is manually rotatable;
A stator 53 is interposed between the orcus member 40 and the fixed lens barrel 2o and connected to one of them, and a stator 53 is connected to the other and is in pressure contact with the stator 53.
a link-shaped ultrasonic motor 50 consisting of a rotor 55 that rotates due to a traveling wave generated by the ultrasonic motor 50; Further, while in the manual focusing mode, the ultrasonic motor 5o is moved away from the ultrasonic motor 5o and pressurized, and the focus member 40 is brought into sliding contact with the focus member 40.
The lens barrel includes a switching mechanism 6o having a pressure member 65 for braking the rotation of the lens barrel.
［作用］
自動合焦のモードでは、加圧部材か超音波モータを加圧
し、ロータとステータとが圧接し、通電すればステータ
に発生ずる進行波によりロータか回転する。[Operation] In the automatic focusing mode, the pressure member or the ultrasonic motor is pressurized, the rotor and stator are brought into pressure contact, and when electricity is applied, the rotor is rotated by the traveling wave generated in the stator.
超音波モータのロータの回転によりフォーカス部材が回
動され、フォーカス部材に螺合している移動鏡筒か前後
に移動して合焦する。The focus member is rotated by the rotation of the rotor of the ultrasonic motor, and the movable lens barrel screwed into the focus member moves back and forth to focus.
手動合焦にするには、超音波モータに圧接しないよう切
換機構により加圧部材を移動して超音波モータから離間
させるとともに、フォーカス部材に摺接させる。For manual focusing, the switching mechanism moves the pressure member away from the ultrasonic motor so that it does not come into pressure contact with the ultrasonic motor, and at the same time brings it into sliding contact with the focus member.
フォーカス部材を手動で回転させると、超音波モータの
ロータとステータとは相互に回転して抵抗とならず、フ
ォーカス部材に螺合している移動鏡筒か前後に移動して
合焦操作をすることができる。加圧部材かフォーカス部
材に摺接しているのて、適度な摩擦力でツーカス部材を
制動し、手動合焦時にフォーカスリンクか軽く動きすぎ
ることかない。When the focus member is manually rotated, the rotor and stator of the ultrasonic motor rotate against each other, creating no resistance, and the movable lens barrel screwed into the focus member moves back and forth to perform focusing operations. be able to. Since it is in sliding contact with the pressure member or the focus member, the focus member is braked with an appropriate amount of frictional force, and the focus link does not move too lightly during manual focusing.
手動合焦時に、超音波モータのステータとロータ間は離
間する事か無いのてゴミか入って自動合焦時に作動を阻
害するようなこともない。During manual focusing, there is no separation between the stator and rotor of the ultrasonic motor, so there is no chance of dirt getting in and interfering with the operation during automatic focusing.
［実施例］ 以下１図面に基づき本発明の一実施例を説明する。[Example] An embodiment of the present invention will be described below based on one drawing.
第１図および第２図は本発明の一実施例を示しており、
レンズ鏡筒に超音波モータを組み込んて、自動合焦作動
させる時の縦断面図である。1 and 2 show an embodiment of the present invention,
FIG. 3 is a vertical cross-sectional view when an ultrasonic motor is installed in a lens barrel and automatic focusing is performed.
レンズ鏡筒１０は、固定鏡筒２０に移動鏡筒３０とフォ
ーカス部材４０とを支持し、駆動源である超音波モータ
５０と、切換機構６０とを備えて成る。The lens barrel 10 supports a movable barrel 30 and a focus member 40 on a fixed barrel 20, and includes an ultrasonic motor 50 serving as a driving source and a switching mechanism 60.
固定鏡筒２０は、第１図において右端である基端部２１
にバヨネットマウント２２等のカメラボディーとの締結
手段か設けられており、カメラに取り付けることができ
る。The fixed lens barrel 20 has a base end portion 21 which is the right end in FIG.
A fastening means to the camera body, such as a bayonet mount 22, is provided on the holder, so that it can be attached to the camera.
移動鏡筒３０は固定鏡筒２０の内側に前後移動可能なる
も回動不能に支持されている。すなわち、移動鏡筒３０
の基端に被案内ピン３１か植設されており、被案内ピン
３１は固定鏡筒２０の内壁に光軸方向に刻設された直進
溝２３に摺動可能に嵌合している。移動鏡筒３０はレン
ズ群りを保持している。The movable lens barrel 30 is supported inside the fixed lens barrel 20 so that it can move back and forth but cannot rotate. That is, the movable lens barrel 30
A guided pin 31 is implanted at the base end of the fixed lens barrel 20, and the guided pin 31 is slidably fitted into a straight groove 23 carved in the inner wall of the fixed lens barrel 20 in the optical axis direction. The movable lens barrel 30 holds a lens group.
フォーカス部材４０は、固定鏡筒２０の内側に移動鏡筒
３０との間に介在して回転可能に支持されている。フォ
ーカス部材４０の内径にはへりコイドネジ４１か設けら
れ、移動鏡筒３０の外径のへりコイトネジ３２と螺合し
ている。フォーカス部材４０の先端部４２の外周は手動
リング４３をなしている。The focus member 40 is rotatably supported inside the fixed lens barrel 20 and between the movable lens barrel 30 and the movable lens barrel 30 . A helicoid screw 41 is provided on the inner diameter of the focus member 40 and is screwed into a helicoid screw 32 on the outer diameter of the movable lens barrel 30. The outer periphery of the tip 42 of the focus member 40 forms a manual ring 43.
超音波モータ５０は、全体としてリング形で、圧電体５
１を弾性体５２に添着したステータ５３と、ステータ５
３の弾性体５２の表面に圧接しているとき弾性体５２に
惹起される表面波により回転可能なロータ５５とより成
る。The ultrasonic motor 50 has a ring shape as a whole, and a piezoelectric body 5
1 attached to the elastic body 52, and the stator 5
The rotor 55 is rotatable by surface waves induced in the elastic body 52 when the rotor 55 is in pressure contact with the surface of the elastic body 52 of No. 3.
超音波モータ５０のステータ５３は振動吸収部材５４を
介して固定鏡筒２０の先端部に回動不能で且つ光軸方向
へ微小移動可能に保持されている。ロータ５５はフォー
カス部材４０の先端部４２に嵌着されている。The stator 53 of the ultrasonic motor 50 is held at the distal end of the fixed lens barrel 20 via a vibration absorbing member 54 so as to be non-rotatable and movable slightly in the optical axis direction. The rotor 55 is fitted onto the tip 42 of the focus member 40.
切換機構６０は、固定鏡筒２０に回動可能に支持された
切換リンク６１と、加圧部材６５とを備えて成る。尚、
加圧部材６５は、固定鏡筒２０の内径に移動可能に保持
されている加圧リング６６に、加圧子６７と制動子６８
とか弾撥作用をするウェーブワッシャー６９を間に介在
させて保持されて成る。The switching mechanism 60 includes a switching link 61 rotatably supported by the fixed lens barrel 20 and a pressure member 65. still,
The pressure member 65 includes a pressure ring 66 that is movably held on the inner diameter of the fixed lens barrel 20, and a pressure element 67 and a brake element 68.
It is held with a wave washer 69 interposed therebetween that acts as a repellent.
切換リンク６１は裾部の内周に光軸方向のクリック溝６
２ａ、６２ｂ・・・が円周に沿って所定のピッチで刻設
されている。切換リング６１の裾部に対応する固定鏡筒
２０の外周に形成された保持穴にばね６３ａて付勢され
たクリックボール６３か配設されて節度機構をなしてお
り、クリックボール６３はクリック溝６２ａ、６２ｂ・
・・に選択的に係脱可能である。The switching link 61 has a click groove 6 in the optical axis direction on the inner circumference of the hem.
2a, 62b, . . . are carved along the circumference at a predetermined pitch. A click ball 63 biased by a spring 63a is disposed in a holding hole formed on the outer periphery of the fixed lens barrel 20 corresponding to the hem of the switching ring 61 to form a moderation mechanism, and the click ball 63 is connected to a click groove. 62a, 62b・
It is possible to selectively engage and disengage.
加圧リンク６６の外周にはピン６４が植設され、ピン６
４は固定鏡筒２０に形成された直進溝２５を貫通して、
切換リンク６１のリート溝６１ａに摺動可能に嵌合して
いる。A pin 64 is implanted on the outer periphery of the pressurizing link 66.
4 penetrates the straight groove 25 formed in the fixed lens barrel 20,
It is slidably fitted into the reed groove 61a of the switching link 61.
次に作用を説明する。Next, the effect will be explained.
自動合焦時、レンズ鏡筒１０は第１図および第２図に示
す状態にあり、切換リング６１はクリック溝６２ａの位
置にあり、切換機構６０の加圧部材６５の加圧リンク６
６か超音波モータ５０のステータ５３側に寄せられてお
り、加圧子６７がウェーブワッシャ−６９の働きによっ
て振動吸収部材５４か介してステータ５３とロータ５５
を加圧圧接している。During automatic focusing, the lens barrel 10 is in the state shown in FIGS. 1 and 2, the switching ring 61 is in the click groove 62a, and the pressure link 6 of the pressure member 65 of the switching mechanism 60 is
6 is brought to the stator 53 side of the ultrasonic motor 50, and the pressurizing element 67 is connected to the stator 53 and rotor 55 via the vibration absorbing member 54 by the action of the wave washer 69.
are pressure welded.
この状態で圧電体５１に図示省略した駆動回路によりス
テータ５３の弾性体５２の表面に進行波を発生させると
、ロータ５５が回転し、それによってフォーカス部材４
０が回転する。へりコイドネジ３２と被案内ピン３１と
直進溝２３の働きにより、移動鏡筒３０が前後に移動さ
れ合焦か行われる。In this state, when a traveling wave is generated on the surface of the elastic body 52 of the stator 53 by a drive circuit (not shown) in the piezoelectric body 51, the rotor 55 rotates, thereby causing the focus member 4
0 rotates. The movable lens barrel 30 is moved back and forth by the functions of the helicoid screw 32, the guided pin 31, and the straight groove 23, and focusing is performed.
第３図および第４図はレンズ鏡筒ｌＯか手動合焦状態に
ある。前記自動合焦状態から切換リング６１を回転させ
ると、切換リング６１はクリック溝６２ａから手動合焦
状態であるクリック溝６２ｂ〜６２ｄへ移動する。切換
リング６１は第２図矢示方向に変位し、リード溝６１ａ
と直進溝２５とピン６４との働きにより、加圧部材６５
の加圧リング６６か右方に移動させられ、加圧子６７か
ステータ５３から離間する。なお、切り換え動作に連動
して、超音波モータ５０の駆動回路への給電を制御する
ようにしておいた方か良い。In FIGS. 3 and 4, the lens barrel lO is in a manual focusing state. When the switching ring 61 is rotated from the automatic focusing state, the switching ring 61 moves from the click groove 62a to the click grooves 62b to 62d in the manual focusing state. The switching ring 61 is displaced in the direction of the arrow in FIG.
Due to the functions of the straight groove 25 and the pin 64, the pressure member 65
The pressurizing ring 66 is moved to the right, and the pressurizing element 67 is separated from the stator 53. Note that it is preferable to control the power supply to the drive circuit of the ultrasonic motor 50 in conjunction with the switching operation.
加圧子６７かステータ５３から離間することにより、ロ
ータ５５とステータ５３の間の加圧力が除去されるので
、フォーカス部材４０の手動リンク４３に指をかけて軽
く回転させることかでき、超音波モータ５０てフォーカ
ス部材４０を回転させるのと同様に移動鏡筒３０が光軸
方向に移動し、手動合焦を容易に行える。By separating the pressurizing element 67 from the stator 53, the pressurizing force between the rotor 55 and the stator 53 is removed. Therefore, the manual link 43 of the focus member 40 can be lightly rotated by placing a finger on the manual link 43, and the ultrasonic motor Similarly to rotating the focusing member 40 at 50, the movable lens barrel 30 moves in the optical axis direction, making it easy to perform manual focusing.
単に超音波モータ５０の加圧力を除くたけては、トルク
が軽すぎて、不用意にフォーカス部材４０が動いてしま
うおそれかある。そこで切換リンク６１をさらにクリッ
ク溝６２ｂから６２ｄ方向へ手動にて回転させると、加
圧リンク６６はさらに右方に動かされ制動子６８がフォ
ーカス部材４０に当接し、ウェーブワッシャー６９のｆ
＠きによりフォーカス部材４０に押圧力か加わって、フ
ォーカス部材４０の回転トルクを重くすることかてきる
。If the pressing force of the ultrasonic motor 50 is simply removed, the torque is too light and the focus member 40 may move inadvertently. Therefore, when the switching link 61 is further manually rotated from the click groove 62b to the direction 62d, the pressure link 66 is further moved to the right, the brake 68 comes into contact with the focus member 40, and the wave washer 69
By doing so, a pressing force is applied to the focus member 40, thereby increasing the rotational torque of the focus member 40.
そして、切換リンク６１を回転させてクリック溝６２ｄ
へ移動させると、フォーカス部材４０に加わる押圧力か
さらに増加して、ロック状態にすることもできる。第４
図に示すように、切換リング６１に設けたクリック溝６
２ｂ〜６２ｄにクリックボール６３を適宜選択して係合
させることにより、切換リング６１の回転角を選択して
保持しておくことかてき、適当な手動操作時の操作トル
クを設定することかてきるとともに、フォーカス部材４
０か不用意に回転するのを規制することができる。Then, rotate the switching link 61 and click the click groove 62d.
When the focus member 40 is moved to , the pressing force applied to the focus member 40 is further increased, and a locked state can be achieved. Fourth
As shown in the figure, the click groove 6 provided in the switching ring 61
By appropriately selecting and engaging click balls 63 with 2b to 62d, the rotation angle of the switching ring 61 can be selected and maintained, and an appropriate operating torque for manual operation can be set. At the same time, the focus member 4
0 or careless rotation can be regulated.
［発明の効果］
本発明に係るレンズ鏡筒によれば、手動合焦時に超音波
モータのロータとステータとの間の離間を行わずに加圧
力を除去するのて、ロータとステータ間にゴミ等が入る
ことがなく、自動合焦時の超音波モータの回動を阻害す
る心配かない。また、切り換えリングの回転角により、
手動合焦の操作トルクを可変にてきるので、適切な使用
感を得ることができる。[Effects of the Invention] According to the lens barrel according to the present invention, the pressurizing force is removed without separating the rotor and stator of the ultrasonic motor during manual focusing, thereby removing dust between the rotor and the stator. etc., and there is no need to worry about obstructing the rotation of the ultrasonic motor during automatic focusing. Also, depending on the rotation angle of the switching ring,
Since the operating torque for manual focusing can be made variable, it is possible to obtain an appropriate feeling of use.
各図は本発明の一実施例を示しており、第１図は、自動
合焦時のレンズ鏡筒の縦断面図、第２［図は、自動合焦
時の）オーカス部材の節度機構の展開図、第３図は、手
動合焦時のレンズ鏡筒の縦断面図、第４図は、手動合焦
時のフォーカス部材の節度機構の展開図である。
１０・・・レンズ鏡筒 ２０・・・固定鏡筒３０・
・・移動鏡筒 ４０・・・フォーカス部材４３・
・・手動リンク ５０・・・超音波モータ５３・・
・ステータ ５５・・・ロータ６０・・・切換機
構 ６１・・・切換リンク６５・・・加圧部材
６７・・・加圧子６８・・・制動子
第４図Each figure shows an embodiment of the present invention. Figure 1 is a longitudinal sectional view of the lens barrel during automatic focusing, and Figure 2 is a longitudinal sectional view of the orcus member moderation mechanism during automatic focusing. 3 is a longitudinal sectional view of the lens barrel during manual focusing, and FIG. 4 is a developed view of the moderation mechanism of the focus member during manual focusing. 10... Lens barrel 20... Fixed barrel 30.
・・Moving lens barrel 40・・Focusing member 43・
...Manual link 50...Ultrasonic motor 53...
- Stator 55... Rotor 60... Switching mechanism 61... Switching link 65... Pressure member
67... Pressure element 68... Brake element Fig. 4
Claims (1)
にしたレンズ鏡筒において、 固定鏡筒と、 該固定鏡筒に前後移動可能なるも回動不能に支持された
合焦用の移動鏡筒と、 該移動鏡筒と前記固定鏡筒との間に介在し、該移動鏡筒
には螺合し、該固定鏡筒には回動可能なるも前後移動不
能に支持され、手動回動可能なフォーカス部材と、 該フォーカス部材と前記固定鏡筒との間に介装され、両
者のいずれか一方に連結されたステータと、他方に連結
され、該ステータと圧接し該ステータに発生する進行波
により回動するロータとより成るリング状の超音波モー
タと、 前記固定鏡筒に装着され、自動合焦モード時には前記超
音波モータのロータとステータとをさらに圧接させて保
持する一方、手動合焦モード時には該超音波モータから
離間して加圧をやめるとともに前記フォーカス部材に摺
接し、該フォーカス部材の回動を制動する加圧部材を有
する切換機構とを具備して成るレンズ鏡筒。(1) A lens barrel that can be switched between automatic focusing mode and manual focusing mode, which includes a fixed lens barrel and a focusing lens that is supported by the fixed lens barrel so that it can be moved back and forth but cannot be rotated. a movable lens barrel, interposed between the movable lens barrel and the fixed lens barrel, screwed into the movable lens barrel, supported by the fixed lens barrel so as to be rotatable but not movable back and forth; a rotatable focus member; a stator interposed between the focus member and the fixed lens barrel and connected to either one of the two; a ring-shaped ultrasonic motor consisting of a rotor that rotates by a traveling wave; and a ring-shaped ultrasonic motor that is attached to the fixed lens barrel, and in an automatic focusing mode, the rotor and stator of the ultrasonic motor are held in pressure contact with each other; and a switching mechanism having a pressure member that is separated from the ultrasonic motor to stop pressurizing the ultrasonic motor in a manual focusing mode, and that slides into contact with the focus member to brake the rotation of the focus member. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62004539A JPS63172205A (en) | 1987-01-12 | 1987-01-12 | Lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62004539A JPS63172205A (en) | 1987-01-12 | 1987-01-12 | Lens barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63172205A true JPS63172205A (en) | 1988-07-15 |
Family
ID=11586845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62004539A Pending JPS63172205A (en) | 1987-01-12 | 1987-01-12 | Lens barrel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63172205A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02198731A (en) * | 1988-10-14 | 1990-08-07 | Tsudakoma Corp | Automatic clamping device for pallet |
| JPH0363812U (en) * | 1989-10-25 | 1991-06-21 | ||
| JPH06130266A (en) * | 1992-10-16 | 1994-05-13 | Canon Inc | Lens driving device |
| JPH06233242A (en) * | 1993-02-03 | 1994-08-19 | Matsushita Electric Ind Co Ltd | Video signal encoding device and video signal decoding and reproducing device |
| JPH09304681A (en) * | 1996-03-15 | 1997-11-28 | Asahi Optical Co Ltd | Automatic focusing device for telescopic optical system |
| EP0878724A2 (en) * | 1997-05-16 | 1998-11-18 | Canon Kabushiki Kaisha | Electrically driven optical element with manual operation member |
| JP2018136438A (en) * | 2017-02-22 | 2018-08-30 | 株式会社リコー | Lens barrel and imaging device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59101608A (en) * | 1982-12-03 | 1984-06-12 | Canon Inc | Lens driving device using oscillatory wave motor |
| JPS59111624A (en) * | 1982-12-17 | 1984-06-27 | Canon Inc | Lens barrel |
| JPS6092217U (en) * | 1983-11-29 | 1985-06-24 | オリンパス光学工業株式会社 | Braking mechanism of lens frame |
| JPS6186718A (en) * | 1984-10-04 | 1986-05-02 | Nippon Kogaku Kk <Nikon> | Lens constituting body using surface wave motor |
-
1987
- 1987-01-12 JP JP62004539A patent/JPS63172205A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59101608A (en) * | 1982-12-03 | 1984-06-12 | Canon Inc | Lens driving device using oscillatory wave motor |
| JPS59111624A (en) * | 1982-12-17 | 1984-06-27 | Canon Inc | Lens barrel |
| JPS6092217U (en) * | 1983-11-29 | 1985-06-24 | オリンパス光学工業株式会社 | Braking mechanism of lens frame |
| JPS6186718A (en) * | 1984-10-04 | 1986-05-02 | Nippon Kogaku Kk <Nikon> | Lens constituting body using surface wave motor |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02198731A (en) * | 1988-10-14 | 1990-08-07 | Tsudakoma Corp | Automatic clamping device for pallet |
| JPH0363812U (en) * | 1989-10-25 | 1991-06-21 | ||
| JPH06130266A (en) * | 1992-10-16 | 1994-05-13 | Canon Inc | Lens driving device |
| JPH06233242A (en) * | 1993-02-03 | 1994-08-19 | Matsushita Electric Ind Co Ltd | Video signal encoding device and video signal decoding and reproducing device |
| JPH09304681A (en) * | 1996-03-15 | 1997-11-28 | Asahi Optical Co Ltd | Automatic focusing device for telescopic optical system |
| EP0878724A2 (en) * | 1997-05-16 | 1998-11-18 | Canon Kabushiki Kaisha | Electrically driven optical element with manual operation member |
| EP0878724A3 (en) * | 1997-05-16 | 2000-01-19 | Canon Kabushiki Kaisha | Electrically driven optical element with manual operation member |
| JP2018136438A (en) * | 2017-02-22 | 2018-08-30 | 株式会社リコー | Lens barrel and imaging device |
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