JPS5893012A - Operating device of zoom lens - Google Patents

Abstract

PURPOSE:To give a straight movement in a simple way to a focused lens and its frame and to eliminate an increment of an optical system due to an eccentric turn of the optical axis, by moving the focused lens with a turn of a single operation member to perform the setting of distance, varying the magnification ratio with a shift of the lens toward the optical axis and performing the zooming with a shift of a compensating lens respectively. CONSTITUTION:An operation member 10 is pushed toward the optical axis to perform the zooming, and a variable magnification lens L2 moves with the guide of a straight movement groove 1a. In this case, the rotary power is transmitted to a compensating lens frame 9 by means of a couling member 15 for frame of L2. At the same time, the parallel displacement toward the optical axis is controlled for the frame 9 by an interlock of a guide pin 9b and a curved groove 1b. The distance is set by turning the member 10 around the optical axis. An intermediate member 4 interlocks a screw 2b of a focused lens frame 2 by means of a screw 4a, and the rotation of the frame 2 is controlled to a fixed member 1 and with a relation between a guide pin 3 and a straight movement groove 1c. Thus the frame 2 moves straight and in parallel to the optical axis.

Description

【発明の詳細な説明】 本発明はズームレンズの操作装置、４１に光軸回シの回
転によυ合焦レンズを移動し距離合せを行ない、光軸平
行方向移動により、変倍、補正レンズを移動しズーミン
グを行なう、単一の操作部材を持つズームレンズの操作
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention is a zoom lens operating device, in which the υ focusing lens is moved by rotating the optical axis in 41 to adjust the distance, and by moving in the parallel direction of the optical axis, the magnification can be changed and the correction lens can be adjusted. This invention relates to a zoom lens operating device that has a single operating member that moves and performs zooming.

従来光軸回りの回転により合焦レンズを移動し距離合せ
を行ない、光軸平行方向移動によｐ。Conventionally, the focusing lens is moved by rotating around the optical axis to adjust the distance, and by moving parallel to the optical axis.

合焦レンズとは異なる変倍、補正レンズを移動してズー
ミングを行う、単一操作部材式ズームレンズに於いては
、操作部材の回転に伴って合フ 焦レンズ及び前端部にフィルター、ヤード咎の附属品取
付は部を有し九合焦レンズ枠も回転す。In a single-operation member type zoom lens, which performs zooming by moving a variable magnification and correction lens that is different from the focusing lens, the focusing lens and the front end of the lens are equipped with a filter and a yardstick as the operating member rotates. The accessory mounting section has nine parts and the focusing lens frame also rotates.

るように構成されていた・し九がうて合焦レンズの光軸
芯に誤差があると合焦レンズは偏心した状態で回転し、
光学性能を低下させていた。If there is an error in the optical axis of the focusing lens, the focusing lens will rotate eccentrically.
The optical performance was degraded.

又、偏光フィルター等の特殊フィルターを使用し九場合
、距離合せによシ回転し、偏光方向が変化してしまう問
題がありた◎さらに増−ド使フ 用に於いても距離合せによ）１１−ドが回転するフ 為、丸型＊−ドしか使用できず、結像面に合せ。In addition, when using special filters such as polarizing filters, there was a problem that the polarization direction would change due to rotation due to distance adjustment. Because the 11-door rotates, only round *-doors can be used and aligned with the image plane.

フ　　　　　フ の高ｖｈ′ｌｌｌ−ド、歯−ド先端部を角型とした角製
フ ＊−ド等の使用が■難であった・ 本発明は１合焦レンズ及び附属品取付部を有した合焦レ
ンズ枠を単一操作部材の回転により、光軸方向に直進移
動させるもので、前述従来例の使用を可能としたもので
ある。It was difficult to use a square hood with a high Vh'llll-door and a square-shaped tip of the toothed hood.The present invention has a single focusing lens and an accessory mounting part. The focusing lens frame is moved straight in the optical axis direction by the rotation of a single operating member, making it possible to use the conventional example described above.

以下に本発明の実施例について図を参照して詳述する。Embodiments of the present invention will be described in detail below with reference to the drawings.

本実施例は一眼レフカメラの交換レンズへの適用例を示
す。第１図に示す実施例に於いて、本ズーム―ンズの光
学系は距離合せの為の合焦レンズＬ８、変倍用移動レン
ズＬ２、補正用移動レンズＬｓ、固定のリレーレンズＬ
いから構成されている◎ｌはレンズの固定部材を示し、
一端側に不図示のカメラ側の装着部と結合する結合手段
を備え為マウント−材ＩＣをとス１ｆにて１体的に固定
している・蚊固定部材ｌには光軸Ｋｅプた変倍用レンズ
Ｌ、の為の直進溝１ｍと補正用レンズＬｓを光軸方向に
移動制御する為の曲線溝ｉｂ２有している。又、該固定
部材１の他端には台無用レンズＬ１の回転を規制する直
進＄ｌｃ及び螺子部１ｄを有している・２は合焦レンズ
Ｌ。This embodiment shows an example of application to an interchangeable lens of a single-lens reflex camera. In the embodiment shown in FIG. 1, the optical system of this zoom lens includes a focusing lens L8 for distance adjustment, a moving lens L2 for variable power, a moving lens Ls for correction, and a fixed relay lens L.
◎l indicates the lens fixing member,
One end is provided with a coupling means for coupling with a mounting part on the camera side (not shown), and the mount material IC is integrally fixed with a base 1f.The mosquito fixing member l has an optical axis Ke It has a straight groove 1m for the magnification lens L and a curved groove ib2 for controlling the movement of the correction lens Ls in the optical axis direction. Further, the other end of the fixing member 1 has a straight line $lc and a threaded portion 1d for restricting the rotation of the lens L1. 2 is a focusing lens L.

を保持する合焦レンズ枠であシ、前趨部には附属品取付
は部２ａを有し、外周部に螺子２ｂを設けている。３は
合焦レンズ枠２に植設した案内ビンであり、前記固定部
材１の直進＄ｌｃに嵌入している０４は合焦レンズ枠２
と固定部材ｌを連結する中間部材でアシ、前方螺子部４
ａにて合焦レンズ枠２と螺合し、後方螺子部４ｂにて固
定部材１の螺子部１藝とそれぞれ螺合している。５は該
中間部材４の外周部に植設した案内ビンであり、６は固
定部材１にビス７にて固定した外周材８．９によって移
動可能に配置されている。　９ｂ・１：。It is a focusing lens frame that holds the lens, has an accessory attachment part 2a on its front end, and a screw 2b on its outer periphery. Reference numeral 3 is a guide bottle installed in the focusing lens frame 2, and reference numeral 04, which is fitted into the straight-advancing $lc of the fixing member 1, is a guide pin installed in the focusing lens frame 2.
An intermediate member that connects the fixed member L and the front screw portion 4.
It is threadedly engaged with the focusing lens frame 2 at a portion a, and threadedly engaged with a threaded portion 1 of the fixing member 1 at a rear threaded portion 4b. Reference numeral 5 denotes a guide bottle installed on the outer periphery of the intermediate member 4, and 6 is movably arranged by an outer peripheral member 8.9 fixed to the fixed member 1 with screws 7. 9b.1:.

は補正レンズ枠９に固設した案内ビンであり、固定部材
１の曲線＃１１ｂに嵌入している・１０は操作部材であ
り、案内ビン５の嵌入する光軸平行方向の直進＃１０ｍ
を有している・１２はビス１１によシ、操作部材１０に
固定されている継筒でＴｏＣ，先端部に螺子部１２ａを
有しているＯ１３は操作部材１０の外周に設けたゴムリ
ング０１４は外周１ｉＫｉ［ＩＩｔｚと螺合する螺子１
ｉ１１４ａを有する直進筒であシ、固定部材１に嵌装さ
れている・１５は変倍レンズ保持枠８に固設した連結部
材で６９１足部が補正レンズ枠９に設は九傾斜溝９１、
固定部材１の直進溝１１を貫通し、直進筒１４にビス１
６にて固定されている。　１７は固定のリレーレンズ枠
であシ、ビス１８にて固定部材１に固定されている。１
９は固定部材１にｉｌ鋏した絞り値設定部材であプ、信
号伝達部材２０を介して公知のｉＲシュニット２１に設
定数少情報を伝達するＯ該ｆｃ機構は公知の手段を用い
る事が可能である為以下の説明を省略する。10 is a guide bin fixed to the correction lens frame 9, which is fitted into the curve #11b of the fixed member 1. 10 is an operating member, which is inserted in the straight line #10m in the direction parallel to the optical axis, into which the guide bin 5 is fitted.
・12 is a joint tube fixed to the operating member 10 by the screw 11, and O13 is a rubber ring provided on the outer periphery of the operating member 10, which has a threaded portion 12a at the tip. 014 is the screw 1 that screws into the outer periphery 1iKi[IItz.
15 is a connecting member fixed to the variable magnification lens holding frame 8, and the foot part is set to the correction lens frame 9. The nine inclined grooves 91,
The screw 1 passes through the straight groove 11 of the fixing member 1 and is inserted into the straight tube 14.
It is fixed at 6. 17 is a fixed relay lens frame, which is fixed to the fixed member 1 with screws 18. 1
Reference numeral 9 denotes an aperture value setting member attached to the fixed member 1, which transmits setting information to the known iR Schnitt 21 via the signal transmitting member 20. The fc mechanism can use known means. Therefore, the following explanation will be omitted.

次に本発明の実施例における操作１作用について述べる
。第１図は操作部材を長焦点位置に配置し、距離合ぜｔ
無限遠とした状態を示すＯ第１図の状態によ＃）操作部
材１０を光軸方向に押引操作し、ズームレンズを行うと
、変倍レンズ瑞は固定部材の直進溝１暑をガイドとし、
光軸方向に操作部材ｌＯと１体的に移動する・この時の
補正レンズ枠９は傾斜溝９ａに買入した変倍レンズ枠連
結部材１５によシ１回転力を伝達され、同時に案内ビン
９ｂと曲線溝１ｂＯ係合関係により、光軸平行方向の変
位制御が行われる・この時合焦レンズＬ１及び固定のリ
レーレンズＬ４Ｆｉ定位置を保っている・距離合せは操
作部材１０を光軸回シに回動することによシ行われる・
合焦操作の時の操作部材１０の回動は案内ビン５によシ
、中間部材４に伝達され、該中間部材４は固定部材ｌに
対し螺子１ｄ、４ｂで螺合している為、回転繰出しが行
われる。一方中間部材４は前述の螺子４ｂとは異なる螺
子４ａにて合焦レンズ枠２の螺子２ｂと螺合しておｐ。Next, the operation 1 effect in the embodiment of the present invention will be described. In Figure 1, the operating member is placed at the long focal point position and the distance is adjusted to t.
When the operating member 10 is pushed or pulled in the direction of the optical axis to operate the zoom lens, the variable magnification lens guides the straight groove 1 of the fixed member. year,
The correction lens frame 9 moves integrally with the operating member lO in the optical axis direction. At this time, a rotational force is transmitted to the correction lens frame 9 by the purchased variable power lens frame connecting member 15 to the inclined groove 9a, and at the same time, the correction lens frame 9 moves toward the guide bin. 9b and the curved groove 1bO, the displacement in the direction parallel to the optical axis is controlled. At this time, the focusing lens L1 and the fixed relay lens L4Fi are kept in a fixed position. To adjust the distance, rotate the operating member 10 along the optical axis. This is done by rotating the
The rotation of the operating member 10 during the focusing operation is transmitted through the guide pin 5 to the intermediate member 4, and since the intermediate member 4 is screwed into the fixed member l with screws 1d and 4b, rotation is prevented. A payout is performed. On the other hand, the intermediate member 4 is screwed into a screw 2b of the focusing lens frame 2 using a screw 4a different from the screw 4b described above.

合焦レンズ枠２に設けた案内ビン３と固定部材１に設け
た直進溝ＩＣの関係によシ、合焦レンズ枠２＃ｉ固定部
材１に対し回転を規制され光輔平行方向に直進移動を行
う・ｊｇ２図は第１１ｆｌの状態より、操作部材を回転
し、・距離合せを近距離とした状１ｌｔ−示している０
図に於いて同一の部材は同一符号となっている。Due to the relationship between the guide pin 3 provided on the focusing lens frame 2 and the straight groove IC provided on the fixing member 1, the rotation of the focusing lens frame 2#i with respect to the fixing member 1 is regulated, and the lens moves straight in the parallel direction.・Jg2 figure shows a state in which the operating member is rotated from the state of 11th fl, and the distance adjustment is set to a short distance 1lt-0
Identical members in the figures are designated by the same reference numerals.

纂１図、第２図に於いては、中間部材４と固定部材１の
螺子結合部にリードの大きい螺子、中間部材４と合焦レ
ンズ枠の囃子結合部にリードの小さい螺子を用いた形と
な９ているがこの２つのリードの関係は本発明の本質で
はなく逆の組合せでも何らさしつかえない。In Figures 1 and 2, a screw with a large lead is used in the screw connection between the intermediate member 4 and the fixed member 1, and a screw with a small lead is used in the connection between the intermediate member 4 and the focusing lens frame. However, the relationship between these two leads is not the essence of the present invention, and a reverse combination is also acceptable.

第３図は本発明の他の実施例であり、単−操フ 作部材を持つズームレンズに拳−ドを組込んだ例である
・図に於いて基本構成は第１図と同様でＴｏ１異なる所
のみを詳述する。１０１は合焦切欠１！　ＩＩ　１（Ｊ
ｉｂをＭし、一定の外−に対し、有害光を有効にカット
する形となっているｏ　１０１ａは） 組込み＊−ドの内径に設けた突起でＴｏシ１合焦レンズ
枠２の外周に設けた直進案内溝２Ｃに滅大している。２
ｄは合焦レンズ枠２の先端部に設けたリング状の突起で
あり組込み亭−ド１０１の抜は止めとなっている。Fig. 3 shows another embodiment of the present invention, and is an example in which a handheld lens is incorporated into a zoom lens having a single operation member. Only the differences will be detailed. 101 is focusing notch 1! II 1 (J
ib is set to M, and the shape is such that it effectively cuts harmful light for a certain amount of outside. The provided straight guide groove 2C is completely damaged. 2
Reference numeral d denotes a ring-shaped projection provided at the tip of the focusing lens frame 2, which prevents the built-in retainer 101 from being removed.

本ズームレンズは、第１図、第２図で詳述したごとく、
操作部材の回転により、合焦レンズ枠２は直進移動を行
うものであシ、組込みや一ドは合焦レンズに対し回転を
規制され光軸方向フ のみ移動可能でおる・組込み窒−ドの操作・は外径部を
持って引き出す事によって行なわれるが合焦レンズ枠は
距離合せによりて直進移動のみフ を行う為、組込−＋Ｖ−ドも非回転となり、切欠フ き−−ド尋の有害光を有効にカットする形状とする事を
可能としたものである・ 以上説明したように１本発明は、単一操作部材の回転に
よｐ合焦レンズを移動し距離合せを行ない、光軸平行方
向移動により、変倍、補正レンズを移動してズー″□：
ミンクを行なうＯズームレンズに於いて、簡単な構造゛
で合焦レンズ及び附属品−遍付部を有する合焦レンズ枠
を直進移動可能としたものであり、その効果としては。As detailed in Figures 1 and 2, this zoom lens has the following features:
By rotating the operating member, the focusing lens frame 2 moves in a straight line, and the built-in lens frame 2 is restricted from rotating relative to the focusing lens and can only move in the direction of the optical axis. Operation is performed by holding the outer diameter part and pulling it out, but since the focusing lens frame only moves in a straight line depending on the distance, the built-in - + V- door also does not rotate, and the notched lens frame does not rotate. As explained above, one aspect of the present invention is to adjust the distance by moving the p-focusing lens by rotating a single operating member. By moving parallel to the optical axis, you can change the magnification and zoom by moving the correction lens.
In an O-zoom lens that performs minking, the focusing lens and accessories can be moved in a straight line with a simple structure, and the focusing lens frame having a staggered portion can be moved in a straight line, and its effects are as follows.

金魚レンズが直進移動する為、光学系の光軸偏心の回転
による増長がない０ 附属品城付は部が直進移動する為、偏光フイ７　　　　
　　　　　　　　　　′　　　フきる為、！−ド効果の
高い切欠Ｉ！！卒−ビード込む事が可能でめる・ 等の利点がある・Since the goldfish lens moves straight, there is no increase in length due to rotation of the eccentricity of the optical axis of the optical system 0. Because the part of the accessory castle moves straight, there is no increase in the length due to rotation of the optical axis eccentricity of the optical system.
'To wipe it out! - Highly effective notch I! ! There are advantages such as being able to insert beads.

【図面の簡単な説明】[Brief explanation of the drawing]

６１図は本発明の無限遠状態、第２図１［近距離状ｍｔ
−示す断面図、第３図は本発明の他の実施例の断面図で
ある。 Ｌｌ−合焦レンズｗＬ！”・変倍レンズ、Ｌ、−・補正
レンズｖＬ４”’リレーレンズ、１・・・固定部材、２
−・合焦レンズ枠、４−中間部材、ｉｏ−・・操作部材
。 ） １２−・継筒、１４−・・直進筒’７１０１・−組込み
騨−ドＯ出願人　　キャノン株式会社61 shows the infinite distance state of the present invention, and FIG. 2 1 [close distance state mt
3 is a sectional view of another embodiment of the present invention. Ll-Focusing lens wL! "・Variable lens, L, -・Correction lens vL4'''Relay lens, 1...Fixing member, 2
-.Focusing lens frame, 4-intermediate member, io-.operation member. ) 12-・Joint tube, 14-・straight tube '7101・-Built-in lock O Applicant Canon Co., Ltd.

Claims (1)

【特許請求の範囲】[Claims] ズーミング操作とフを一カス操作を共通の単一操作部材
で行なうための操作装置において、前記単一操作部材の
光軸まわシの回動操作によってフを一カス用光学系を保
持する部材を光軸平行方向に移動するために、前記操作
部材と前記保持部材の関に中間部材を設け、前記中間部
材に鉱固定筒と関係する第１のへリコイドと、保持部材
と関係する第２のへリコイドを設け、前記中間部材と前
記操作部材との関には操作部材の回動を中間部材に伝え
る手段を設け、更に前記保持部材の光軸まわりの回動を
規制する手段を保持部材と固定筒の間に設叶たことを特
徴とするズームレンズの操作装置・In an operating device for performing a zooming operation and a single frame operation using a common single operation member, the member for holding the optical system for one frame is moved by rotating an optical axis rotation of the single operation member. In order to move in a direction parallel to the optical axis, an intermediate member is provided between the operating member and the holding member, and the intermediate member includes a first helicoid associated with the ore fixing tube and a second helicoid associated with the holding member. A helicoid is provided, a means for transmitting rotation of the operating member to the intermediate member is provided between the intermediate member and the operating member, and a means for regulating rotation of the holding member around the optical axis is provided as the holding member. A zoom lens operating device characterized by being installed between the fixed tubes.