JPS5987413A - Moving device of lens - Google Patents
Moving device of lensInfo
- Publication number
- JPS5987413A JPS5987413A JP19861582A JP19861582A JPS5987413A JP S5987413 A JPS5987413 A JP S5987413A JP 19861582 A JP19861582 A JP 19861582A JP 19861582 A JP19861582 A JP 19861582A JP S5987413 A JPS5987413 A JP S5987413A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- cam
- guide groove
- lens barrel
- optical axis
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用４分ｖ）゛
本発明は、レンズ鏡胴におけるレンズ移動装置βに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION Industrial Application 4 minutes v) The present invention relates to a lens moving device β in a lens barrel.
従来例の構成とその問題点
従来のレンズ移動装Ｗは第１図及び第２図に示すように
なっている。即ち、固定鏡胴（１）、の外周に移１ｔ＋
＋ ｈｒｇ胴（２）が摺！Ｉｌ）＋ 【ＴＩ能に嵌合さ
れており、この移ｌρＪ鏡ル１ｊｊ １２）はそのｙ；
６１部でレンヌ（３）を保持している。Structure of the conventional example and its problems A conventional lens moving device W is shown in FIGS. 1 and 2. That is, 1t+ is transferred to the outer periphery of the fixed lens barrel (1).
+ hrg cylinder (2) is printed! Il) + [It is fitted to the TI function, and this transfer lρJ mirror 1jj 12) is its y;
They hold Rennes (3) in the 61st division.
しＩ疋Ｑ＋、＋Ｊ Ｉｆ同（Ｉ）（こはピ′ン（４）が
ｇｉ役され、このビ゛ン（４）は移ｄυ１鋭１１１１ｉ
ｌ Ｌ２）の側面に光軸（３）に対して今？め方向に設
けられたカム溝（５）と係合している。而して、移動鏡
胴（２ン２回１ｉｉＪ）ずれば、カム溝（５）に従って
この移動鏡胴（２）か光’ＩＩ：α）方向に移動する。If the same (I) (this pin (4) is used as gi, this pin (4) is moved dυ1 sharp 1111i
Is it now against the optical axis (3) on the side of l L2)? It engages with a cam groove (5) provided in the opposite direction. When the movable lens barrel (2) is displaced by 2 times 1iiJ, the movable lens barrel (2) moves in the direction of light 'II:α) according to the cam groove (5).
こめように捲ＤＶ。Roll up DV.
された従来のレンズ移動装置は、固定鏡胴（１）にヌ・
１する移ｈυ１鏡胴（２）の光軸（３）Ｉ丁同のガタを
、力ｌ・沿（５）のγ１°パを幅とビン（４）の夕１径
の切削加工精反缶［τ′；」士させることによ−って＋
＋ｒ６収している。従って、′ｌｊム溝（５）をプラス
チック１戊形等で昂′ｉ成すると、ンｉ”？ｊ ｌ＋’
１１ｔの１１“ｆｌ（Ｅが悪くなるため光軸（３）方向
のガタが大きくなるという問題点があった。The conventional lens moving device has a fixed lens barrel (1).
1. Move the optical axis (3) of the lens barrel (2) to the same width, and cut the γ1° width of the force l and the longitudinal direction (5) to the diameter of the bottle (4). [τ′;] by making someone
+r6 has been collected. Therefore, if the groove (5) is made of plastic, etc., then
Since the 11"fl (E) of 11t deteriorates, there is a problem in that play in the optical axis (3) direction increases.
発明の目的
イ＼弁明は上記従来の欠点を解消するもので、案内溝の
溝幅の粕馬：が悪くても光軸方向のガタを防止し得るレ
ンズ移動装置を提供することを目的とする。The purpose of the invention is to eliminate the above-mentioned conventional drawbacks, and an object of the invention is to provide a lens moving device that can prevent backlash in the optical axis direction even if the width of the guide groove is poor. .
発明の構成
上記目的を達するため、本発明のレンズ移動装置は、側
面に光軸方向にズ２１シて斜め方向に案内溝を形成した
第１の筒体と、前記案内溝に沿−って案内さ第１この案
内１１★の長手方向に対して直角な方向の断面形状が台
形状でその対向斜面で前Ｗｅ案内溝と係合可能な保合部
材と、ｎＩＪＩＩｌの筒体に内嵌さＡ１てｆｌｆＪ記係
合部材を保持し０ｉ１記第１の筒体とこの穿、１の筒体
に対して相対的に移動する第２の筒体と、前記係会部制
とｎｉＪ記第２の触体との［１゛ｄに介装され、前記係
合部材を前記案内溝に抑圧して前記係合部材のヌＪ向斜
面をＩ’＋ｔＪ記案内溝に係合させる付勢手段を有する
構成としたもので、第１のｆ８ｉ体の案内棉に対する第
２の筒体の係合部材を断面台形状とし、この保合部材を
付勢手段により常時案内ｒ４’Ａｊに押圧してその対向
斜面で係合させることにより光軸方向のカフを防止した
ものである。Structure of the Invention In order to achieve the above object, the lens moving device of the present invention includes a first cylindrical body having a guide groove formed diagonally in the optical axis direction on the side surface, and a first cylinder body having a guide groove formed diagonally in the optical axis direction; The first guide 11★ has a trapezoidal cross-sectional shape in a direction perpendicular to the longitudinal direction, and has a retaining member that can engage with the front We guide groove on its opposing slope, and is fitted into the cylinder of nIJIIl. A1 holds the engagement member flfJ; 0i1 the first cylindrical body; A biasing means is interposed between the contact body and the guide groove, and presses the engaging member into the guide groove to engage the facing surface of the engaging member with the guide groove indicated by I'+tJ. The engaging member of the second cylindrical body with respect to the guide shaft of the first f8i body has a trapezoidal cross section, and this retaining member is constantly pressed against the guide r4'Aj by the biasing means. By engaging with opposing slopes, cuffing in the optical axis direction is prevented.
実施例の説明
以下、本発明の一実施例について、図面に基づいて旨Ｉ
、明する。DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of the present invention will be explained based on the drawings.
, reveal.
第８図及び第４図において、０υは固に鏡ハト１．０２
は固定幌胴Ｑυに摺り功自在に外嵌された移動親胴、ａ
４は移動鏡胴（１りの一端側内周面に形成されたレンズ
保持部Ｑ勺に包持されレンズ押え枠ＯＱによって固’ｉ
ｆ−サＦＬ ？、： レンズ、Ｑｌ ｉ、を移’ｈ 鏡
１１Ｍ ＪＪ２の側面に光１ｉ１１１Ｘ１方向に対して
斜め方向に形成された長孔状のカム溝、０７）は固定鏡
胴０υの外周の一部に設けられた凹部で、この四部α力
にはＩｉＪ記移側鏡胴（６）の力ｌ・溝０４円に臨む輔
ａ樟が植設されている。θ嗜は截頭円姉ノ１？をなし、
目、つその小径部のｍｌ径（ｄ）が力ｌ−溝０呻の１？
１１幅（５）より小さく、大径部の直径（Ｄ）が前記６
ｉＹ幅（〜慣より大きく設定されたカムホロワで、前記
四部０７）の４ｑｉ＋ ａ）９に大径部（ＩＩｌから挿
入され１・て軸Ｑ枠に対して摺動可能（と遊嵌されてい
る。翰はカムホロ゛〕θ呻と共にΦ１１１０綽１と挿入
されて四部αカ内に位置する機ばわで、カムホロワ０９
をぞの下刃からカム溝θ〔−に押肚付勢してその付勢力
によりカムホロワθ１の対向♀・１面をカムｔｊＭ Ｌ
ＩＧに係合させでいる。なお、前音」カムホロワ０鋳は
横断面が円形のものを用いたが、これに限定するもので
はなく、カム溝（噂の長手方向に対して直角な方向の断
面形状が台形状であれはよい以上の構成において、固定
鏡胴０υに対して移動釘！ ＩＪｆ−Ｊ ＱａをＩｒ１
ｉ １１ｔｌＩ吏ると、カム車１Ｊワ０りに対してカム
ｆｊｉ （ｍが移１助し、これにより移動鏡１１ｉｉｉ
ｉ （Ｉ乃は回１１シＩ Ｌ／ ｉＬがら光軸（埒方向
に移ｉ１Ｑ＋する。このとき、例えは、カム溝０Ｑがプ
ラスチック成形等で植成されＣいてその溝幅（ロ）の精
度が四“くても、カム溝０９と対向♀゛１面で係合して
いるカム車１フ１ノθ優か仮ばわい月こまって常にカム
溝（埒−・押圧イ」勢されているため、イγ動鏡胴０２
に光軸（３）方向のカフが生ずることはない３゜なお、
以」＝説明したｇｔ７ ｇ例では、内側１の緬匂帖（１
υを１己定とし、り）０川の０５′口ｊ同（ｌのを移ｄ
功ｉｌ’Ｊ宮シテとしｊこが、この逆の溝Ｊｉｙ、即ら
、内側の釘、ξｌ１ｌｉｄθ１）を移出ｉ＋可ｎト：と
し、外（ＩＩｌ、ｌの鏡胴（ｌηを固カニきして内（ｊ
ｉｌｊの鏡胴Ｕυにレンズθ葎を保持しても良いことは
いうまでもない。In Figures 8 and 4, 0υ is strictly 1.02
is a movable main trunk that is freely fitted on the fixed hood trunk Qυ, a
4 is held in a lens holding part Q formed on the inner peripheral surface of one end of the movable lens barrel (1) and fixed by a lens holding frame OQ.
f-sa FL? , : Move the lens, Ql i,'h Mirror 11M A long hole-shaped cam groove formed on the side surface of JJ2 in a diagonal direction with respect to the light 1i111X1 direction, 07) is provided in a part of the outer periphery of the fixed lens barrel 0υ. In the recessed part, a camphor that faces the force l groove 04 circle of the transfer side lens barrel (6) is planted in this four part α force. Is θ the truncated circle sister no 1? and
Is the ml diameter (d) of the small diameter part of the eye and thorax 1 of force l - groove 0?
11 width (5), and the diameter (D) of the large diameter part is the above-mentioned 6
It is a cam follower with iY width (~ larger than usual, and is inserted from the large diameter part (IIl) into 4qi + a) 9 of the above-mentioned 4 parts 07, and is slidable (and loosely fitted) with respect to the shaft Q frame. .The wire is inserted with cam follower ゛] θ and Φ1110 wire 1, and it is located in the fourth part α, and the cam follower 09
The lower blade of the blade presses against the cam groove θ[-, and the urging force causes the opposing ♀ and 1 faces of the cam follower θ1 to be pushed into the cam tjM L
It is engaged with IG. In addition, although we used a cam follower with a circular cross section, it is not limited to this, and the cam groove (which is rumored to have a trapezoidal cross-sectional shape in the direction perpendicular to the longitudinal direction) In the above configuration, the movable nail with respect to the fixed lens barrel 0υ! IJf-J Qa to Ir1
When the i 11tlI is raised, the cam fji (m) moves against the cam wheel 1J, thereby moving the movable mirror 11iii.
i (I is 11 times I L/ iL is moved in the direction of the optical axis (i1Q+). At this time, for example, if the cam groove 0Q is implanted by plastic molding etc., the accuracy of the groove width (b) is Even if the cam wheel 1 is engaged with the cam groove 09 on the opposite ♀ 1 side, the cam wheel 1 is always forced to press the cam groove. Therefore, the γ-motion lens barrel 02
A cuff in the optical axis (3) direction does not occur at 3°.
' = explained gt7 g In the example, the inside 1 Myocho (1
Let υ be 1 self-determined, ri) 0 river's 05' mouth j same (move l's d
In this case, the opposite groove Jiy, that is, the inner nail, ξl1lidθ1) is exported as i+cant:, and the outer (IIl, l lens barrel (lη is hard crab)). Inside (j
It goes without saying that the lens θ may be held in the lens barrel Uυ of the ilj.
発明の効果
以上のように木兄…１によれば、対向斜面で案内溝と係
合する係合部材をイ」手段段により常に案内招ｌに押圧
１勢しでいろｔ：め、案内溝の溝幅の精ｒｖが泡１くで
も光軸方向のガタをＫＱ比することができ、従って、案
内γ、′？Ｌ及び係合部材をプラスチック成形で加二１
することがｉｊＪ能となって、安価で量産性のｌ？￥１
いレンズ移ｄｌ＃ ｌ、！置を押供することができる１
、Effects of the Invention As described above, according to Kinoshita...1, the engaging member that engages with the guide groove on the opposite slope is always pressed against the guide groove by means of the first force. Even if the width of the groove rv is 1 bubble, the backlash in the optical axis direction can be compared to KQ, and therefore the guide γ,'? Add L and engaging member by plastic molding.
It has become an ability to do so, and it is inexpensive and mass-producible. ¥1
Move the lens dl # l,! 1.
,
第１図は従来例の半部ｅ１１図、第２図は第１図におけ
る要部の平面図、第８図は木づこ明の一実施例１１−示
す半部縦断面図、第４図は第８図）こおける１汐ｒ：Ｉ
＜ ０） ”ｆ’ Ｉｆ！Ｉ ｌ、’；コである。
ＣＩ＋） ・ｉｔ’：ｉ ：２ｔ′、鏡Ｕｌ；）ｌ 、
Ｏａ −・・移［１１ＪｆＲ，ｌ ＩＩｌ同、 ０：
ｌ−レンズ、 （１’９・・・カム？；１’？、 、
Ｏｎ・・・ＪＪ ｌ、ポロー７、（至）・・・板ばわ、
（Ｘ）・・・光車山
代ｒ（１ｉ人 盲１ 木 ＾（弘第１図
第９図
第４図Fig. 1 is a half part e11 diagram of the conventional example, Fig. 2 is a plan view of the main part in Fig. 1, Fig. 8 is a longitudinal sectional view of the half part showing Embodiment 11 of Kizuko Akira, and Fig. 4 is a half part e11 diagram of the conventional example. Figure 8) 1st wave r: I
< 0) ``f' If!
Oa -... transfer [11JfR, l IIl same, 0:
l-lens, (1'9...cam?;1'?, ,
On...JJ l, Poro 7, (to)...Itabawa,
(X)... Hikari Kurumayamadai r (1i person blind 1 tree ^(Hiro 1 Figure 9 Figure 4)
Claims (1)
て斜め方向に４５内１１′６を形成した第１の筒体と、
Ｎ：Ｊ Ｎシ’、案内溝に沿って案内されこの案内溝の
長手方向に対して１α角な方向の断面形状が台形状でそ
の対向余１面でか（能楽内溝と係合部ｍｊな係合部材と
、前記＠）１の筒体に内１ｔ’＞ｉされて前記係合、部
組を保持し前記第１の筒体とこの第１の筒体に刻して相
対的に移８功する第２の筒体と、前記係合部材と前記第
２の筒体との間に介装さＩ〜１、ｒ１１１記件合部材を
前言ｆｌ案ビ」泣に抑圧して口１（記係合８）、材の対
向徐）面をｈｉＩ記案内溝に係合させるイ・］勢手段を
有するレンズ移動装置。1, <1'l + mouth 1 light 1 forward direction nujj t,
a first cylindrical body in which a 45 inner 11'6 is formed in an oblique direction;
N: J Nshi' is guided along a guide groove and has a trapezoidal cross-sectional shape in a direction 1α angle with respect to the longitudinal direction of this guide groove, and the remaining one surface facing the guide groove is shaped like a trapezoid. an engaging member that is inserted into the cylindrical body of @) 1 to hold the engaging member and the first cylindrical body and relatively The second cylindrical body that is to be moved is interposed between the engaging member and the second cylindrical body, and the mating member described above is pressed and opened. 1 (Engagement 8), a lens moving device having a force means for engaging the opposite surface of the material with the guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19861582A JPS5987413A (en) | 1982-11-11 | 1982-11-11 | Moving device of lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19861582A JPS5987413A (en) | 1982-11-11 | 1982-11-11 | Moving device of lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5987413A true JPS5987413A (en) | 1984-05-21 |
| JPH0352606B2 JPH0352606B2 (en) | 1991-08-12 |
Family
ID=16394131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19861582A Granted JPS5987413A (en) | 1982-11-11 | 1982-11-11 | Moving device of lens |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5987413A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4844586A (en) * | 1987-01-06 | 1989-07-04 | Canon Kabushiki Kaisha | Adjustment apparatus for a lens barrel with built-in motor |
| DE19804472C1 (en) * | 1998-02-05 | 1999-08-12 | Leica Camera Ag | Straight play without play |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5719908U (en) * | 1980-07-03 | 1982-02-02 | ||
| JPS58121003U (en) * | 1982-02-12 | 1983-08-17 | 株式会社日立製作所 | Focus adjustment lens barrel |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5283009A (en) * | 1975-12-29 | 1977-07-11 | Fujitsu Ltd | Connecting system for incoming during communication |
-
1982
- 1982-11-11 JP JP19861582A patent/JPS5987413A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5719908U (en) * | 1980-07-03 | 1982-02-02 | ||
| JPS58121003U (en) * | 1982-02-12 | 1983-08-17 | 株式会社日立製作所 | Focus adjustment lens barrel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4844586A (en) * | 1987-01-06 | 1989-07-04 | Canon Kabushiki Kaisha | Adjustment apparatus for a lens barrel with built-in motor |
| DE19804472C1 (en) * | 1998-02-05 | 1999-08-12 | Leica Camera Ag | Straight play without play |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0352606B2 (en) | 1991-08-12 |
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