JPH0442206A - Lens barrel for optical equipment - Google Patents
Lens barrel for optical equipmentInfo
- Publication number
- JPH0442206A JPH0442206A JP15126190A JP15126190A JPH0442206A JP H0442206 A JPH0442206 A JP H0442206A JP 15126190 A JP15126190 A JP 15126190A JP 15126190 A JP15126190 A JP 15126190A JP H0442206 A JPH0442206 A JP H0442206A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- operating ring
- lens barrel
- operating
- optical
- 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
- 230000003287 optical effect Effects 0.000 title claims abstract description 69
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004904 shortening Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Landscapes
- Structure And Mechanism Of Cameras (AREA)
- Lens Barrels (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は光学機器用レンズ鏡胴の装置に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for a lens barrel for optical equipment.
従来の技術
一眼レフレックスカメラ等はカメラメーカーによって、
マウント形状も異なれば、フランヂハッりもまちまちで
ある。従って交換レンズの使用の瓦間性は非常に難しい
が、ＣＣＴＶカメラに於いては、画面サイズが１” （
インチ）、２／３”（インチ）時代とＣマウントを採用
してきており、フランヂバックも企画値のｆｔｌ”１７
．５＋ｕ＋を使用して来た為、どこのメーカーのレンズ
でも使用可能の状態であった。Conventional technology Single-lens reflex cameras, etc., differ depending on the camera manufacturer.
If the mount shape is different, the flange clearance will also vary. Therefore, it is very difficult to use interchangeable lenses, but in CCTV cameras, the screen size is 1” (
Inch), 2/3" (inch) era and C mount have been adopted, and the flange back is also the planned value ftl"17
．． Since I used 5+u+, I was able to use lenses from any manufacturer.
しかし、ＣＣＴＶカメラに使用する受像素子の発展に伴
って、例えば、ＣＯＤ素子の場合でも画面サイズが１”
から２／３”へ、更に１／２”に移行し、今後は更に１
／３°゛へ移行する傾向にあり、ＣＣＴＶカメラも急速
に小型化の傾向に動き出した。特に１”、２／３”時代
は前述した様にカメラのフランヂバックもＣマウント規
格値であったが、１／２゛インチに移行した際には通称
ＣＳマウントと呼ばれるＣマウントネジを有したフラン
ヂバックがｆｂ＝１２．５鶴のカメラが商品化され、こ
の企画がレンズの小型化、低価格化の条件に沿った企画
であった故に、どのカメラメーカーもＣＳマウントのカ
メラを急速に商品化しつつある現状である。従って、交
換レンズメーカーとしては、ＣマウントのレンズをＣＳ
マウントのカメラに取付け、使用する為にフランヂバッ
ク寸法の差分の厚みをもたせたマウントアダプターを作
り、Ｃマウントレンズ十ＣＳマウントアダプターにより
ＣＳマウントレンズとして使用する手段と、新規にＣＳ
マウントレンズとして製品化し、対処しなければならな
い現状である。However, with the development of image receiving elements used in CCTV cameras, for example, even in the case of COD elements, the screen size has increased to 1".
From 2/3” to 1/2”, and in the future from 1/3” to 1/2”
/3°゛, and CCTV cameras have also started to rapidly become smaller. Especially in the 1" and 2/3" era, as mentioned above, the flange back of cameras was C-mount standard, but when the camera moved to 1/2", it had a C-mount screw, commonly known as CS mount. A camera with a flange back of fb = 12.5 was commercialized, and since this project met the requirements of making lenses smaller and cheaper, all camera manufacturers rapidly began commercializing CS mount cameras. The current situation is that this is becoming more and more common. Therefore, as an interchangeable lens manufacturer, C mount lenses are
In order to attach and use a mount camera, we made a mount adapter with a thickness equal to the difference in flange back dimension, and used it as a CS mount lens with a C mount lens and a CS mount adapter, and a new CS mount lens.
This is a current situation that must be addressed by commercializing it as a mount lens.
発明が解決しようとする問題点
しかし、ＣＳマウントレンズとして設計したレンズ鏡胴
は、フランヂバックの関係でＣマウントカメラ用のレン
ズにはなり得ないため、ユーザーの要望によってはＣマ
ウントカメラ用にも設計し製品化して対処しなければな
らないため、機種数が増し、製品管理部門及び製造部門
では非常に煩わしい生産体制を取らざるを得ないのが現
状である。Problems to be Solved by the Invention However, a lens barrel designed as a CS mount lens cannot be used as a lens for a C mount camera due to the flange back. The current situation is that the number of models has increased and the product management and manufacturing departments have no choice but to adopt a very cumbersome production system as they must be designed and manufactured into products.
問題点を解決するための手段
そこで本発明は上述した問題点に鑑みてなされたもので
、光学機器本体に固着される固定体と該固定体に対し光
軸に沿って移動自在に設けた移動体と、固定体と移動体
との間に介在して固定体に対して移動体を移動操作する
操作環とからなり、該操作環の回動操作によって、光学
系を保持する移動体を光軸に沿って移動する機能を有し
た光学機器用レンズ鏡胴に於いて、前記操作環を第１操
作環、第２操作環とに分離し、第１操作環は固定体側に
回動自在に設け、第２操作環は光学系を保持した移動体
側に回動自在に設け、第１操作環の回動操作により第２
操作環を含んだ移動体が光軸に沿った移動を行わせ、第
２操作環の回動操作では光学系を保持した移動体部分が
光軸に沿って移動する様に成し、第１操作環の回動操作
又は第２操作環の回動操作のいずれかの回動操作によっ
て、ＣマウントカメラのフランヂバックとＣＳマウント
カメラのフランヂバックの差分を補正するマウント面の
移動量を確保する様に成し、他の一方の操作環の回動操
作によって合焦の為の繰り出し量を確保する様に成した
ＣマウントカメラとＣＳマウントカメラ兼用レンズ鏡胴
の装置を提供しようとするものである。Means for Solving the Problems The present invention has been made in view of the above-mentioned problems, and includes a fixed body fixed to the main body of an optical device and a movable member movable along the optical axis relative to the fixed body. and an operation ring that is interposed between the fixed body and the movable body and moves the movable body with respect to the fixed body, and by rotating the operation ring, the movable body holding the optical system can be moved to the light. In a lens barrel for optical equipment having a function of moving along an axis, the operating ring is separated into a first operating ring and a second operating ring, and the first operating ring is rotatable toward the fixed body. The second operating ring is rotatably provided on the movable body side holding the optical system, and the second operating ring is rotated by rotating the first operating ring.
The movable body including the operation ring is moved along the optical axis, and when the second operation ring is rotated, the movable body portion holding the optical system is moved along the optical axis, and the first operation ring is moved along the optical axis. The amount of movement of the mount surface that corrects the difference between the flange back of the C-mount camera and the flange back of the CS-mount camera is ensured by either the rotation operation of the operation ring or the rotation operation of the second operation ring. The object of the present invention is to provide a device for a lens barrel that can be used for both C-mount cameras and CS-mount cameras, and is configured so that the amount of extension for focusing can be secured by rotating the other operation ring. be.
実施例
以下図示した本発明に係るＣＣＴＶカメラ用レンズ鏡胴
の一実施例に基づいて本発明の詳細な説明する。EXAMPLE Hereinafter, the present invention will be explained in detail based on an example of a CCTV camera lens barrel according to the present invention shown in the drawings.
第１図及び第２図に示す実施例に於いて、本発明に係る
レンズ鏡胴は、カメラ本体に装着される固定体側の固定
鏡胴（１１、固定鏡胴（１１に固着された固定体側の取
付環（２）、固定鏡胴（１）に光軸方向に沿って直進移
動可能に支持される移動体側の接続環（３）、取付環（
２）に回動自在に設けられた第１操作環（４）、接続環
（３）に回動自在に設けられた第２操作環（５）、接続
環（３）に光軸方向に沿って直進移動可能に支持された
鏡胴（６）等からなる。In the embodiment shown in FIGS. 1 and 2, the lens barrel according to the present invention includes a fixed lens barrel (11) on the fixed body side attached to the camera body, and a fixed lens barrel (11 on the fixed body side fixed to the fixed body side attached to the camera body). mounting ring (2), a connecting ring (3) on the movable body side that is supported by the fixed lens barrel (1) so as to be movable in a straight line along the optical axis direction, and a mounting ring (
2), a first operating ring (4) rotatably provided on the connecting ring (3), a second operating ring (5) rotatably provided on the connecting ring (3), and a second operating ring (5) rotatably provided on the connecting ring (3), along the optical axis direction. It consists of a lens barrel (6) etc. supported so as to be movable in a straight line.
固定体側の固定鏡胴（１）は、光学機器本体に装着する
マウントネジ（１ａ）を有し、そのフランジ状部（１ｂ
）の−側面が光学機器本体に密着するように一体に取付
けられる。固定鏡胴（１）のフランジ状部（ｌｂ）の他
側面側の外筒部には取付環（２）が回転自在に嵌合する
と共に、取付環（２）を任意の位置にマウント位置決め
ができるように、フリクションバネ（１４）を該取付環
（２）と前記フランジ状部（ｌｂ）とで挟持して、反対
側を固定リング（１５）で押えてあり、フリクションハ
ネ（１４）の摩擦抵抗で固定鏡胴（１）と取付環（２）
が任意のマウント位置で一体化するように構成しである
。The fixed lens barrel (1) on the fixed body side has a mount screw (1a) that is attached to the optical device main body, and a flange-shaped part (1b) of the fixed lens barrel (1).
) is attached integrally with the main body of the optical device so that the - side surface is in close contact with the main body of the optical device. A mounting ring (2) is rotatably fitted into the outer cylinder part on the other side of the flange-shaped part (lb) of the fixed lens barrel (1), and the mounting ring (2) can be mounted at any position. The friction spring (14) is held between the mounting ring (2) and the flange portion (lb), and the opposite side is held down by the fixing ring (15), so that the friction of the friction spring (14) can be reduced. Lens barrel fixed with resistance (1) and mounting ring (2)
It is configured so that it can be integrated at any mounting position.
固定鏡胴（１）の内筒側には、接続環（３）の小筒部が
光軸方向に移動可能に嵌合し、移動体側の接続環（３）
を光軸方向に移動可能に支持している。実施例の場合は
、固定鏡胴（１）とマウン１〜位置決め後一体的な関係
になる取付環（２）の内奥端面と、これに相対する接続
環（３）の壁面とが、キーとキー溝の関係で連結し、前
述した固定鏡胴（１）に対する接続環（３）の光軸方向
に沿った直進移動する関係が構成しである。A small cylindrical portion of a connecting ring (3) is fitted into the inner cylinder side of the fixed lens barrel (1) so as to be movable in the optical axis direction, and a connecting ring (3) on the movable object side is fitted into the inner cylinder side of the fixed lens barrel (1).
is supported movably in the optical axis direction. In the case of the embodiment, the inner end surface of the mounting ring (2), which is in an integral relationship with the fixed lens barrel (1) and the mount 1 after positioning, and the wall surface of the connecting ring (3) opposite thereto are keyed. The connecting ring (3) is connected to the fixed lens barrel (1) in a keyway relationship, and is configured to move linearly along the optical axis direction of the connecting ring (3) with respect to the fixed lens barrel (1).
また、取付環（２）の内筒側には、前記接続環（３）の
大筒部の外側に操作部（４ｃ）を有する第１操作環（４
）の嵌合筒部が回転自在に嵌合していると共に、該嵌合
筒部の内側フランジ状部（４ｂ）が、前記固定体側の取
付環（２）と、移動体側の接続環（３）の小筒部と大筒
部とを連結する円板状壁面部（３ｂ）で挟持され得るよ
うに位置して設けてあり、且つ、前記内側フランジ状部
（４ｂ）と接続環（３）の円板状壁面部（３ｂ）には、
相対する相互面に好ましくは２個所以上の当接点を設け
、一方の当接面側に所定回転角に対し光軸方向に増減す
るリード角を有したカム面又は斜面等からなる操作面を
設けると共に、他方の端面側に前記操作面に当接する円
頭状突起等からなる当接部を設けである。Further, on the inner cylinder side of the attachment ring (2), a first operation ring (4) having an operation part (4c) outside the large cylinder part of the connection ring (3) is provided.
) are rotatably fitted together, and the inner flange-shaped portion (4b) of the fitting cylinder is connected to the mounting ring (2) on the fixed body side and the connecting ring (3) on the movable body side. ) is positioned so that it can be held between the disk-shaped wall part (3b) connecting the small cylinder part and the large cylinder part, and the inner flange part (4b) and the connecting ring (3) The disc-shaped wall part (3b) has
Preferably, two or more contact points are provided on opposing mutual surfaces, and an operating surface consisting of a cam surface or sloped surface having a lead angle that increases or decreases in the optical axis direction with respect to a predetermined rotation angle is provided on one of the contact surfaces. At the same time, a contact portion consisting of a circular head-shaped projection or the like that contacts the operation surface is provided on the other end surface side.
更に、前記固定鏡胴（１）と接続環（３）との間には、
光軸方向に弾発力を有する弾性部材り１１）を収容し、
該弾性部材（１１）を固定鏡胴（１）との間で挟持した
状態で押え環００）を接続環（３）に螺合固着し、弾性
部材（１１）の反発力で、接続環（３）と固定鏡胴（１
）の間隔が富に狭められる方向に加圧されている状態に
成るように構成し、この弾性部材（１１）の弾発力によ
って前記第１操作環（４）の内側フランジ上部（４ｂ）
と接続環（３）の円板状壁面部（３ｂ）の相対する操作
面と当接部とが常時密着するように構成してあり、第１
操作環（４）の回動操作により前記弾性部材（１１）の
反発力に打ち勝って、接続環（３）と固定鏡胴（１）の
間隔を広げる方向に推力を得られる構成としである。Furthermore, between the fixed lens barrel (1) and the connecting ring (3),
housing an elastic member 11) having elastic force in the optical axis direction;
With the elastic member (11) sandwiched between the fixed lens barrel (1), the holding ring 00) is screwed and fixed to the connecting ring (3), and the connecting ring (3) is fixed by the repulsive force of the elastic member (11). 3) and fixed lens barrel (1
), and the inner flange upper part (4b) of the first operating ring (4) is compressed by the elastic force of the elastic member (11).
The opposing operation surface of the disc-shaped wall portion (3b) of the connecting ring (3) and the contact portion are always in close contact with each other, and the first
The rotation operation of the operating ring (4) overcomes the repulsive force of the elastic member (11) and is configured to generate thrust in the direction of widening the distance between the connecting ring (3) and the fixed lens barrel (1).
又、リード角を有した操作面と該操作面に当接する当接
部は、好ましくは２ケ所以上と前述したが、この場合、
完全な等間隔の必要はなく、推力を伝達する時にバラン
スの取れた程度の間隔設定で差支えない。又固定鏡胴（
１）と第１操作環（４）とを光軸に交差する面で直接に
接触するように構成し、その接触面に、直接に前述した
り一ト角を有した操作面と該操作面に当接する当接部を
、好ましくは２ケ所以上で当接せしめた機構としても同
じ効果が得られるものであり、更に前述した接触面と接
触面とを当接させて、同じリード角を有した操作面を使
用して、倍の移動量を確保できるように構成することも
でき、本発明に関する当接点の構成は前述の実施例の構
成に限定されるものではない。Furthermore, as described above, the operating surface having a lead angle and the contact portions that contact the operating surface are preferably provided at two or more locations, but in this case,
There is no need for perfectly equal spacing, and it is sufficient to set the spacing to a level that is balanced when transmitting thrust. Also, fixed lens barrel (
1) and the first operating ring (4) are configured to be in direct contact with each other on a surface intersecting the optical axis, and the above-mentioned operating surface and the operating surface having an angle are directly attached to the contact surface. The same effect can be obtained by a mechanism in which the abutting portion that abuts on the contact surface is brought into contact with the contact portion, preferably at two or more locations, and furthermore, the aforementioned contact surfaces are brought into contact with each other so that they have the same lead angle. It is also possible to construct a structure in which double the amount of movement can be secured by using the operation surface, and the structure of the contact point related to the present invention is not limited to the structure of the above-mentioned embodiment.
他方、前記接続環（３）の大筒部には光軸方向に沿って
直線的に直進案内溝（３ａ）が設けであると共に、その
外周に回転自在に第２操作環（５）が設けである。直進
案内溝（３ａ）に重なり合う第２操作環（５）の重合筒
部には、リード溝（５ａ）が螺旋状に設けである。当該
第２操作環（５）のリード溝（５ａ）は、例えば、９０
°回転する間に５ｍｍ進退するようなリード角を具備し
ている。また、接続環（３）の内筒部には光軸方向に沿
って直進移動可能に鏡筒（６）が設けてあり、該鏡筒（
６）に植設した直進案内ビス（１２）が、その外周に設
けた案内ローラ（１３）を介して、前記接続環（３）の
直進案内溝（３ａ）と第２操作環（５）のリード溝（５
ａ）の両溝に同時に嵌合している。また、第２操作環（
５）の該重合筒部の外周は、第１操作環（４）の操作部
（４Ｃ）が覆っており、その前方に第２操作環（５）の
操作部が突出した形で露出している。On the other hand, the large cylindrical portion of the connecting ring (3) is provided with a linear guide groove (3a) along the optical axis direction, and a second operating ring (5) is rotatably provided on the outer periphery of the guide groove (3a). be. A lead groove (5a) is spirally provided in the overlapping cylinder portion of the second operating ring (5) that overlaps the straight guide groove (3a). The lead groove (5a) of the second operation ring (5) is, for example, 90 mm.
It has a lead angle that allows it to move forward and backward by 5 mm while rotating. Further, a lens barrel (6) is provided in the inner cylinder portion of the connecting ring (3) so as to be movable in a straight line along the optical axis direction.
The straight guide screw (12) installed in the connecting ring (3) connects the straight guide groove (3a) of the connecting ring (3) with the second operating ring (5) via a guide roller (13) provided on its outer periphery. Lead groove (5
It fits into both grooves of a) at the same time. In addition, the second operation ring (
The outer periphery of the overlapping tube part 5) is covered with the operating part (4C) of the first operating ring (4), and the operating part of the second operating ring (5) is exposed in a protruding manner in front of it. There is.
また、鏡胴（６）の内筒部には、前群レンズ（２０）及
び後群レンズ（３０）を保持する前群レンズ枠（８）と
後群レンズ枠（９）がネジにて螺合され、固定されてい
ると共に、鏡筒（６）の外筒部には、絞り羽根を操作す
る絞目盛環（７）が回動自在に設けである。In addition, a front group lens frame (8) and a rear group lens frame (9) that hold the front group lens (20) and the rear group lens (30) are screwed into the inner cylinder part of the lens barrel (6). In addition to being fitted and fixed, an aperture scale ring (7) for operating the aperture blades is rotatably provided on the outer cylindrical portion of the lens barrel (6).
絞目盛環（７）は接続環（３）に対して鏡筒（６）と共
に光軸方向に一体的に直進移動し、光軸方向において接
続環（３）に対して移動しない前記第２操作環（５）の
表示筒部（５ｂ）を、第１図に示すように、Ｃマウント
設定時に覆う一方、ＣＳマウント設定時には第２図に示
すように、露呈するように設けである。In the second operation, the diaphragm scale ring (7) moves linearly together with the lens barrel (6) relative to the connecting ring (3) in the optical axis direction, and does not move relative to the connecting ring (3) in the optical axis direction. The display cylinder part (5b) of the ring (5) is covered when the C mount is set, as shown in FIG. 1, and exposed as shown in FIG. 2 when the CS mount is set.
以上の構成からなる実施例において、第１図では、Ｃマ
ウントカメラのフランヂバックとＣＳマウントカメラの
フランジバック寸法の差５韮分を補正するために、第２
操作環（５）のリード溝（５ａ）に５ｍｍの補正移動量
を設け、第２操作環（５）を回動操作すると、第１図の
鏡筒（６）の直進案内ビス（１２）が接続環（３）の円
板状壁面部（３ｂ）側に引き寄せられたＣマウントのフ
ランジバック状態から、リード溝（５ａ）の回動に伴っ
て、直進案内ビス（１２）は操作環（３）の直進案内溝
（３ａ）に案内されて、直進案内ビス（１２）の植設さ
れている光学系を保持している鏡筒（６）が光軸に沿っ
て直進移動し、第２図の状態となり、ＣＳマウントカメ
ラのフランヂバック寸法を確保した光学系の配置に変化
する事となる。この状態でレンズ鏡胴をＣＳマウントカ
メラに装着し、合焦の為の第１操作環（４）の回動操作
を行うと、接続環（３）と第１操作環（４）の操作面と
当接部の推力により弾性部材（１１）の反発力に打ち勝
って前記した接続環（３）と第１操作環（４）との間隔
が広がり、移動体側の鏡筒（６）に保持されている光学
系が移動し、撮影距離にあった合焦が行われる事となる
。又、第１操作環を逆方向に回動した場合にも弾性部材
の（１１）の反発力で接続環（３）と第１操作環（４）
の操作面と当接部は常に密着された状態となって移動す
る為に、１ｗＪｆ６）に保持されている光学系は繰込ま
れる方向に移動し、この場合も合焦操作が行われる事と
なる。In the embodiment having the above configuration, in FIG. 1, the second
When the lead groove (5a) of the operating ring (5) is provided with a correction movement amount of 5 mm, and the second operating ring (5) is rotated, the linear guide screw (12) of the lens barrel (6) shown in Fig. 1 is moved. From the flange-back state of the C-mount drawn toward the disc-shaped wall portion (3b) of the connecting ring (3), the linear guide screw (12) moves from the flange-back state of the C-mount to the operating ring (3) as the lead groove (5a) rotates. ), the lens barrel (6) holding the optical system in which the linear guide screw (12) is installed moves straight along the optical axis, as shown in Fig. 2. , and the optical system arrangement changes to ensure the flange back dimension of the CS mount camera. In this state, when the lens barrel is attached to the CS mount camera and the first operating ring (4) is rotated for focusing, the operating surfaces of the connecting ring (3) and the first operating ring (4) The thrust of the contact portion overcomes the repulsive force of the elastic member (11), and the distance between the connection ring (3) and the first operating ring (4) increases, and the lens barrel (6) on the movable body side expands the distance between the connection ring (3) and the first operation ring (4). The optical system moves, and the focus is adjusted to the shooting distance. Also, even when the first operating ring is rotated in the opposite direction, the connecting ring (3) and the first operating ring (4) are moved by the repulsive force of the elastic member (11).
Since the operating surface and the abutting part of the lens always move in close contact with each other, the optical system held in 1wJf6) moves in the direction of being retracted, and in this case as well, the focusing operation is performed. Become.
尚、前記の装置に於いて、フランヂバックの差分を補正
するマウント面の移動量を得る為に第２操作環（５）を
回動した事により、露出する表示筒部（５ｂ）の外観部
に、適用するマウント名表示又は近接撮影時の撮影倍率
、撮影距離表示等を設ける事ができる。In addition, in the above device, when the second operation ring (5) is rotated to obtain the amount of movement of the mount surface to correct the difference in flange back, the external appearance of the display cylinder part (5b) is exposed. The name of the applied mount, the photographing magnification for close-up photography, the photographing distance, etc. can be displayed.
第３図及び第４図に示したもう一つの実施例に於いては
、第１図で示した第１操作環と第２操作環の使い方を反
対にした構成、即ち、第１操作環の回動操作でフランヂ
バック寸法の差分の補正移動を行い、第２操作環の回動
操作で合焦の為の繰り出しを行う構成にした実施例を示
す。又合焦の為の推力に於いても、第１図の場合には、
リード角を有した操作面と当接部の推力と弾性部材の反
発力から得たのに対し、第３図の実施例では通常のヘリ
コイドネジの推力を利用したものであり、それぞれ相違
はあるが、いずれの推力を利用しても本発明の構成は成
立するものである。In another embodiment shown in FIGS. 3 and 4, the use of the first operating ring and the second operating ring shown in FIG. 1 is reversed, that is, the first operating ring is An embodiment will be described in which a rotating operation moves to correct the difference in flange back dimension, and a rotating operation of the second operating ring extends it for focusing. Also, regarding the thrust for focusing, in the case of Figure 1,
While the thrust force of the operating surface with a lead angle and the abutment part and the repulsive force of the elastic member are used, the embodiment shown in Fig. 3 utilizes the thrust force of a normal helicoid screw, so there are differences between the two. However, the configuration of the present invention can be achieved regardless of which thrust force is used.
第３図及び第４図における本発明のレンズ鏡胴は、カメ
ラ本体に装着される固定体側の固定鏡胴（１）、固定鏡
胴（１）に固着される固定体側の取付環（２）、取付環
（２）に対し光軸方向に沿って直進移動可能に支持され
る移動体側の接続環（３）、第１操作環（４）、第２操
作環（５）、光学系を保持する鏡筒（６）、前群レンズ
（２０）及び後群レンズ（３０）を保持する様に設けた
前群レンズ枠（８）、後群レンズ枠（９）、直進案内ビ
ス（１２） 、案内ローラー（１３） 、直進案内キー
（１６）等で構成されている。The lens barrel of the present invention shown in FIGS. 3 and 4 includes a fixed lens barrel (1) on the fixed body side that is attached to the camera body, and a mounting ring (2) on the fixed body side that is fixed to the fixed lens barrel (1). , a connecting ring (3) on the movable body side that is supported so as to be movable in a straight line along the optical axis with respect to the mounting ring (2), a first operating ring (4), a second operating ring (5), and holding an optical system. a lens barrel (6), a front group lens frame (8) provided to hold the front group lens (20) and the rear group lens (30), a rear group lens frame (9), a straight guide screw (12), It consists of a guide roller (13), a straight guide key (16), etc.
固定鏡胴（１）は光学機器本体に装着するマウントネジ
（１ａ）を有し、光学機器本体に一体に取付けられる。The fixed lens barrel (1) has a mount screw (1a) that is attached to the optical device body, and is integrally attached to the optical device body.
固定鏡胴（１）には取付環（２）が内筒側に回転自在に
嵌合し、任意の位置にマウント位置決めができるように
、セントビス（ＩＣ）で固定鏡胴（１）と取付環（２）
が一体に固着可能な構成となっている。The fixed lens barrel (1) has a mounting ring (2) that rotatably fits on the inner cylinder side, and the fixed lens barrel (1) and the mounting ring are connected with a central screw (IC) so that the mount can be positioned at any desired position. (2)
It has a structure that allows it to be fixed together.
取付環（２）には、外筒側に絞目盛環（７）が回転自在
に嵌合し、内筒側には第１操作環（４）が回転自在に装
着しである。An aperture scale ring (7) is rotatably fitted into the attachment ring (2) on the outer cylinder side, and a first operation ring (4) is rotatably mounted on the inner cylinder side.
又取付環（２）には、移動体側の接続環（３）を第１操
作環（４）の回転操作によって光軸に沿って直進移動さ
せる直進案内溝（２ａ）と、鏡筒（６）を第２操作環（
５）の回動操作によって光軸に沿って直進させる直進案
内キー（１６）に嵌合する直進案内キー溝（２ｂ）を設
けである。The mounting ring (2) also has a linear guide groove (2a) for moving the connecting ring (3) on the movable body side in a straight line along the optical axis by rotating the first operation ring (4), and a lens barrel (6). into the second operating ring (
A linear guide key groove (2b) is provided which fits into the linear guide key (16) which is caused to move straight along the optical axis by the rotational operation of 5).
第１操作環（４）は、Ｃマウントカメラのフランヂバッ
クとＣＳマウントカメラのフランジバック寸法の差分を
補正するためのリード溝（４ａ）を有する一方、内筒側
に接続環（３）を嵌合支持している。The first operation ring (4) has a lead groove (4a) for correcting the difference in flange back dimensions of a C-mount camera and a CS-mount camera, and a connecting ring (3) is fitted on the inner cylinder side. I support it.
接続環（３）には、前記取付環（２）の直進案内溝（２
ａ）と第１操作環（４）のリード溝（４ａ）に同時に案
内ローラ（１３）を介して嵌合する直進案内ビス（１２
）を植設しである一方、第２操作環（５）とは後述する
へりコイドネジと反対方向の小ネジにて回動自在に螺合
している。The connecting ring (3) has a straight guide groove (2) of the mounting ring (2).
a) and the linear guide screw (12) which is fitted into the lead groove (4a) of the first operating ring (4) via the guide roller (13) at the same time.
), while the second operating ring (5) is rotatably screwed together with a machine screw in the opposite direction to the helicoidal screw described later.
第２操作環（５）は、前述の如く、小ネジにて回動自在
に接続環（３）に対して螺合すると共に、内筒部にヘリ
コイドネジ（５ｃ）を有し、鏡筒（６）の外筒部に設け
たヘリコイドネジ（６ｃ）と螺合結合している。As mentioned above, the second operating ring (5) is rotatably screwed into the connecting ring (3) with a machine screw, has a helicoid screw (5c) in the inner cylinder part, and has a lens barrel ( 6) is threadedly connected to the helicoid screw (6c) provided on the outer cylinder portion.
鏡筒（６）は光学系を保持する前群レンズ枠（８）と後
群レンズ枠（９）をネジにて固着し、一体に具備してい
る。また、第２操作環（５）の回動操作により、鏡筒（
６）を光軸に沿って直進移動する為の直進案内キー （
１６）をビスにて固着してあり、前記固定体側の取付環
（２）のキー溝（２ｂ）と係合して、キーとキー溝の関
係で結合している。The lens barrel (6) is integrally provided with a front group lens frame (8) that holds the optical system and a rear group lens frame (9) that are fixed with screws. In addition, by rotating the second operating ring (5), the lens barrel (
6) Straight guide key to move straight along the optical axis (
16) is fixed with a screw, and is engaged with the key groove (2b) of the mounting ring (2) on the fixed body side, and is coupled in a key-key groove relationship.
尚、前記の装置に於いて、フランヂハソクの差分を補正
するマウント面の移動量を得る為に第１操作環（４）を
回動した事により、露出する表示筒部（４ｄ）の外観部
に、適用するマウント名表示又は近接撮影時の撮影倍率
、撮影距離表示等を設ける事ができる。In addition, in the above device, by rotating the first operation ring (4) in order to obtain the amount of movement of the mount surface to correct the difference in the flange hask, the external appearance of the exposed display cylinder part (4d) , the name of the applied mount, the photographing magnification for close-up photography, the photographing distance, etc. can be provided.
以上第３図及び第４図示の構成のレンズ鏡筒に於いて、
第１操作環（４）を回動操作すると直進案内ビス（１２
）は案内ローラー（１３）を嵌合させた状態で取付環（
２）の直進案内溝（２ａ）と第１操作環（４）のリード
溝（４ａ）を貫通した状態で接続環（３）に植設しであ
る為、接続環（３）は取付環（２）の直進案内溝（２ａ
）に沿って直進移動し、Ｃマウントカメラのフランヂバ
ック寸法とＣＳマウントカメラのフランヂバック寸法の
差分（５ｍｍ）を補正するリード溝（４ａ）に従って、
第４図の如くＣＳマウントカメラのフランヂバック寸法
を確保した光学系の配置となる。この状態で、第２操作
環（５）を回動操作すると一般的なヘリコイドネジ式台
焦機構で鏡筒（６）を合焦操作ができるものである。In the lens barrel configured as shown in FIGS. 3 and 4 above,
When the first operation ring (4) is rotated, the straight guide screw (12)
) is attached to the mounting ring (
2) and the lead groove (4a) of the first operating ring (4), the connecting ring (3) is inserted into the connecting ring (3). 2) Straight guide groove (2a
), and follow the lead groove (4a) that corrects the difference (5 mm) between the flange back dimension of the C mount camera and the flange back dimension of the CS mount camera.
As shown in FIG. 4, the optical system is arranged to ensure the flange back dimension of the CS mount camera. In this state, when the second operating ring (5) is rotated, the lens barrel (6) can be focused using a general helicoid screw type focusing mechanism.
又第１図に於ける第２操作環（５）と、第３図に於ける
第１操作環（４）の回動操作によって露出した前記第１
、第２操作環の表示筒部（５ｂ）、（４ｄ）の外観面に
適要マウント表示を（例えばＣＳの様に）する事により
、操作環のセント状態がどうなっているのかの状態が一
見して判明すると共に、同様に近接撮影時の必要事項、
撮影倍率目盛等を表示する事によりレンズ鏡胴の機能ア
ップが計られるものである。Also, the first operating ring (5) in FIG. 1 and the first operating ring (4) exposed by rotating the first operating ring (4) in FIG.
By displaying the appropriate mount display (for example, CS) on the external surface of the display cylinder parts (5b) and (4d) of the second operating ring, the cent state of the operating ring can be determined. In addition to being obvious at a glance, there are also necessary matters for close-up photography,
By displaying the photographic magnification scale, etc., the functionality of the lens barrel can be improved.
効果
以上の通り、本発明に係る光学機器用レンズ鏡胴によれ
ば、光学機器本体に固定される固定体と、該固定体に対
して光軸に沿って、移動自在に設けた移動体と、固定体
と移動体との間に介在し、固定体に対して移動体を移動
操作する操作環とからなり、該操作環の回動操作によっ
て、光学系を保持する移動体を光軸に沿って、移動する
機能を有した光学機器用レンズの鏡胴に於いて、前記操
作環を第１操作環と、第２操作環とに分け、第１操作環
は固定体側に回動自在に設け、第２操作環は光学系を保
持した移動体側に回動自在に設け、第１操作環の回動操
作により、第２操作環を含んだ移動体を光軸に沿った移
動を行わせ、第２操作環の回動操作よっては、光学系を
保持した移動体部分が光軸に沿って移動する様に成した
構成を有するから、第１操作環又は第２操作環の一方の
操作環の回動操作によって、フランヂハソクの差分を補
正するマウント面の移動量が得られる様に成し、他のも
う一方の操作環の回動操作により、合焦の為の移動量を
得る様にすることによって、フランヂハソクの異なるカ
メラに兼用して使用できる。Effects As described above, the lens barrel for optical equipment according to the present invention includes a fixed body fixed to the optical equipment main body, and a movable body provided movably along the optical axis with respect to the fixed body. , consisting of an operation ring interposed between the fixed body and the movable body and for moving the movable body with respect to the fixed body, and by rotating the operation ring, the movable body holding the optical system is moved to the optical axis. In a lens barrel for an optical instrument lens having a function of moving along the axis, the operating ring is divided into a first operating ring and a second operating ring, and the first operating ring is rotatable toward the fixed body side. The second operating ring is rotatably provided on the movable body holding the optical system, and the movable body including the second operating ring is moved along the optical axis by rotating the first operating ring. Depending on the rotation operation of the second operation ring, since the movable body portion holding the optical system is configured to move along the optical axis, operation of either the first operation ring or the second operation ring is required. By rotating the ring, you can obtain the amount of movement of the mount surface to correct the difference in the flange hask, and by rotating the other operation ring, you can obtain the amount of movement for focusing. By doing so, the flange can be used with different cameras.
即ち、ＣマウントカメラとＣＳマウントカメラ用レンズ
鏡胴として、アダプター等を介さず使用する事ができ、
しかも完全な瓦間性を確保する事ができるレンズ鏡胴と
成る事から、ユーザーへの対応に於いても機種数を増や
す事なく対処でき、逆に生産数量をその分まとめて増や
す事ができ、多機種に分散して生産する生産時の煩わし
さ、及び部品管理の煩わしさ等解消できる効果の外に生
産効果を上げる効果も見込めるものである。In other words, it can be used as a lens barrel for C-mount cameras and CS-mount cameras without using an adapter or the like.
In addition, since the lens barrel is able to ensure perfect interpolation, it is possible to respond to user needs without increasing the number of models, and conversely, production volume can be increased accordingly. In addition to being able to eliminate the troubles associated with distributing the production of multiple models and the troubles of managing parts, it is also expected to improve production efficiency.
又製品として見た場合、ＣＣＴＶカメラ用レンズ鏡胴の
場合、比較的に焦点距離も短く、従ってレンズ鏡胴の繰
り出し量も少なくない事から、中望遠レンズ、標準レン
ズ、広角レンズ等ではＣマウントカメラ用レンズ鏡胴と
して、本発明の機構を採用したレンズ鏡胴を使用する場
合には、このフランヂバック補正移動量分をレンズの合
焦の為の移動量として使うと、丁度へリコイド付接写リ
ング内蔵レンズ鏡胴の如くなり、マクロ撮影範囲の繰り
出し量を得る事ができ、操作部材を回動操作して繰り出
した時に露出する操作部材の外観面に近接撮影時に必要
な像倍率目標等を表示する事により、倍率優先の繰り出
し量を設定し、合焦の為の微調整を合焦の為のもう一つ
の操作環の回動操作で行う様な撮影条件の設定も可能と
なり、レンズ鏡胴としての機能もアンプする効果がある
。Also, when viewed as a product, in the case of lens barrels for CCTV cameras, the focal length is relatively short, and therefore the amount of extension of the lens barrel is not small. When using a lens barrel that adopts the mechanism of the present invention as a camera lens barrel, if this flange back correction movement amount is used as the movement amount for focusing the lens, it will be possible to take close-up shots with a helicoid. Like a lens barrel with a built-in ring, it is possible to obtain the extension amount for the macro shooting range, and the image magnification target required for close-up photography can be displayed on the external surface of the operating member that is exposed when the operating member is rotated and extended. By displaying the display, it is possible to set shooting conditions such as setting the extension amount to give priority to magnification and making fine adjustments for focusing by rotating the other operation ring for focusing. Its function as a torso also has an amplifying effect.
又ヘリコイド付接写リング内蔵レンズ鏡胴の如く、マク
ロ撮影向レンズ鏡胴に変身する事は、接写リング等の拡
大写真撮影に必要なアダプター等も何種類か不要にした
事に通じ、レンズ鏡胴としての附加価値を高める効果も
発生した。In addition, transforming the lens barrel into a lens barrel for macro photography, such as a lens barrel with a built-in helicoid close-up ring, means that several types of adapters necessary for taking enlarged photographs such as a close-up ring are no longer required. There was also the effect of increasing added value.
更に将来カメラの小型化が進み、フランヂバックの更に
短くなる様な場合に、アダプター使用の共用性を見た場
合には、Ｃマウントネジの形状から制約が発生し、現行
ＣＳマウントのフランヂハックｆｂ＝１２．５ｍ璽より
１．５ｍｍ以下の短縮かもしくは５關以上の短縮かの
中間の短縮値がない短縮条件となる。前者の場合はワッ
シャー的使用のアダプターであり、後者の場合はオスネ
ジ、メスネジを有したアダプター使用となる。又５１１
ｍ以上の短縮の場合には、カメラ側に使用される内蔵フ
ィルター等の制約条件も加わりレンズ鏡胴側のメリット
はあまりない為、実質的には１．５ｍｍ以下の短縮条件
が残るだけとなる。しかし本発明の構成とすれば、カメ
ラ側とレンズ鏡胴側の効率良い寸法設定ができ、設計の
自由度が増す効果もある。Furthermore, in the future, when cameras become smaller and the flange back becomes even shorter, there will be restrictions due to the shape of the C-mount screw, and the current CS-mount flange hack fb = 12.5m Therefore, the shortening condition is that there is no intermediate shortening value of 1.5 mm or less or 5 mm or more. In the former case, an adapter is used like a washer, and in the latter case, an adapter with male and female screws is used. Also 511
In the case of a shortening of 1.5 mm or more, constraints such as the built-in filter used on the camera side are also added, and there is not much benefit on the lens barrel side, so the only shortening condition remaining is 1.5 mm or less. . However, with the configuration of the present invention, it is possible to efficiently set the dimensions of the camera side and the lens barrel side, which also has the effect of increasing the degree of freedom in design.
以上の様にＣＣＴＶカメラ用レンズ鏡胴の他機種併用レ
ンズ鏡胴装置を提供するものである。As described above, a lens barrel device for CCTV cameras that can be used in combination with other types of lens barrels is provided.
第１図は本発明を通用したＣＣＴＶカメラ用しンズ鏡胴
の一実施例の要部の断面図で、Ｃマウントカメラ用フラ
ンヂバック寸法を有する状態を表示しており、第２図は
第１図のレンズ鏡胴をＣＳマウントカメラ用フランヂバ
ック寸法に切り換えた状態の同様の断面図であり、第３
図は他の実施例を示すＣＣＴＶカメラ用レンズ鏡胴の要
部の断面図で、第１図と同様Ｃマウントカメラ用のフラ
ンヂバック寸法の状態を表示しており、第４図は第３図
のレンズ鏡胴をＣＳマウントカメラ用のフランヂバック
寸法に切り換えた状態を示す同様の断面図である。
第１図、第２図に於いて
■・・・固定鏡胴 １ａ・・・マウントネジ２・・・
取付環
３・・・接続環 ３ａ・・・直進案内溝４・・・第
１操作環
５・・・第２操作環 ５ａ・・・リード溝５ｂ・・・表
示筒部
６・・・鏡筒
７・・・絞り目盛環
８・・・前群レンズ枠 ２０・・前群レンズ９・・・後
群レンズ枠 ３０・・後群レンズ１０・・・押え環
１１・・・弾性部材
１２・・・直進案内ビス
１３・・・案内ローラー
１４・ ・ ・フリクションハ′ネ
１５・・・固定リング
第３図、第４図に於いて
１・・・固定鏡胴
２・・・取付環
ｌａ・・マウントネジ
２ａ・・直進案内溝
２ｂ・・直進案内キー溝
３・・・接続環
４・・・第１操作環 ４ａ・・リード溝４ｄ・・表示筒
部
５・・・第２操作環
６・・・鏡筒
７・・・絞り目盛環
８・・・前群レンズ枠 ２０・・前群レンズ９・・・後
群レンズ枠 ３０・・後群レンズ１２・・・直進案内ビ
ス
１３・・・案内ローラー
１６・・・直進案内キーFIG. 1 is a cross-sectional view of a main part of an embodiment of a lens barrel for a CCTV camera that is compatible with the present invention, and shows a state having a flange back dimension for a C-mount camera, and FIG. This is a similar cross-sectional view with the lens barrel shown in the figure switched to the flange back dimension for a CS mount camera.
The figure is a cross-sectional view of the main part of a lens barrel for a CCTV camera showing another embodiment, and shows the flange back dimensions for a C-mount camera in the same way as in Figure 1, and Figure 4 is similar to Figure 3. FIG. 3 is a similar cross-sectional view showing a state in which the lens barrel has been switched to a flange back dimension for a CS mount camera. In Figures 1 and 2, ■...Fixed lens barrel 1a...Mount screw 2...
Mounting ring 3... Connection ring 3a... Straight guide groove 4... First operating ring 5... Second operating ring 5a... Lead groove 5b... Display tube section 6... Lens barrel 7... Aperture scale ring 8... Front group lens frame 20... Front group lens 9... Rear group lens frame 30... Rear group lens 10... Holder ring 11... Elastic member 12...・Straight guide screw 13...Guide roller 14...Friction spring 15...Fixing ring In Figures 3 and 4, 1...Fixed lens barrel 2...Mounting ring la... Mounting screw 2a... Straight guide groove 2b... Straight guide key groove 3... Connection ring 4... First operating ring 4a... Lead groove 4d... Display cylinder portion 5... Second operating ring 6. ... Lens barrel 7 ... Aperture scale ring 8 ... Front group lens frame 20 ... Front group lens 9 ... Rear group lens frame 30 ... Rear group lens 12 ... Straight guide screw 13 ... Guide roller 16...straight guide key
Claims (3)
対して光軸に沿って、移動自在に設けた移動体と、固定
体と移動体との間に介在して、固定体に対して移動体を
移動操作する操作環とからなり、該操作環の回動操作に
よって、光学系を保持する移動体を光軸に沿って、移動
する機能を有した光学機器用レンズの鏡胴に於いて、前
記操作環を第１操作環と、第２操作環とに分け、第１操
作環は固定体側に回動自在に設け、第２操作環は光学系
を保持した移動体側に回動自在に設け、第１操作環の回
動操作により、第２操作環を含んだ移動体を光軸に沿っ
た移動を行わせ、第２操作環の回動操作よっては、光学
系を保持した移動体部分が光軸に沿って移動する様に成
した事を特徴とする光学機器用レンズ鏡胴。(1) A fixed body fixed to the optical device main body, a movable body provided movably along the optical axis with respect to the fixed body, and a fixed body interposed between the fixed body and the movable body. A mirror for a lens for an optical instrument, comprising an operation ring for moving a moving body against a lens, and having the function of moving a moving body holding an optical system along an optical axis by rotating the operation ring. In the body, the operating ring is divided into a first operating ring and a second operating ring, the first operating ring is rotatably provided on the fixed body side, and the second operating ring is provided on the movable body side holding the optical system. The movable body including the second operating ring is moved along the optical axis by rotating the first operating ring, and the rotating operation of the second operating ring moves the optical system. A lens barrel for optical equipment, characterized in that a held movable body part moves along an optical axis.
１操作環又は第２操作環の一方の操作環の回動操作によ
って、フランヂバックの異なったカメラに該レンズ鏡胴
を取り付けて使用可能の様に、フランヂバックの差分を
補正するマウント面の移動量が得られる様に成し、他の
もう一方の操作環の回動操作により、合焦の為の移動量
を得る様に成した事を特徴とする光学機器用レンズ鏡胴
。(2) In the device described in claim (1), the lens barrel can be attached to cameras with different flange backs by rotating one of the first operation ring and the second operation ring. The mounting surface is designed to have the amount of movement to correct the difference in flange back so that it can be used after installation, and the amount of movement for focusing can be obtained by rotating the other operating ring. A lens barrel for optical equipment that is characterized by the following features:
於いて、フランヂバックの差分を補正するマウント面の
移動量を得る為の操作環を回動した事により、露出する
外観部に、適用するマウント名表示又は近接撮影時の撮
影倍率、撮影距離表示等を設けた事を特徴とする光学機
器用レンズ鏡胴。(3) In the device described in claim (1) or (2), the external appearance is exposed by rotating the operation ring for obtaining the amount of movement of the mount surface to correct the difference in flange back. A lens barrel for an optical device, characterized in that an applicable mount name display, a photographing magnification during close-up photography, a photographing distance display, etc. are provided on the part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15126190A JP2770071B2 (en) | 1990-06-08 | 1990-06-08 | Lens barrel for optical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15126190A JP2770071B2 (en) | 1990-06-08 | 1990-06-08 | Lens barrel for optical equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0442206A true JPH0442206A (en) | 1992-02-12 |
| JP2770071B2 JP2770071B2 (en) | 1998-06-25 |
Family
ID=15514797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15126190A Expired - Fee Related JP2770071B2 (en) | 1990-06-08 | 1990-06-08 | Lens barrel for optical equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2770071B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0573616U (en) * | 1992-03-06 | 1993-10-08 | 旭精密株式会社 | Lens barrel and lens barrel group |
| JPH0573614U (en) * | 1992-03-06 | 1993-10-08 | 旭精密株式会社 | Lens barrel and lens barrel group |
| JP2012098706A (en) * | 2010-10-06 | 2012-05-24 | Nikon Corp | Camera system and interchangeable lens |
| JP2014130248A (en) * | 2012-12-28 | 2014-07-10 | Canon Inc | Lens device and photographing apparatus including the same |
-
1990
- 1990-06-08 JP JP15126190A patent/JP2770071B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0573616U (en) * | 1992-03-06 | 1993-10-08 | 旭精密株式会社 | Lens barrel and lens barrel group |
| JPH0573614U (en) * | 1992-03-06 | 1993-10-08 | 旭精密株式会社 | Lens barrel and lens barrel group |
| JP2012098706A (en) * | 2010-10-06 | 2012-05-24 | Nikon Corp | Camera system and interchangeable lens |
| US8807854B2 (en) | 2010-10-06 | 2014-08-19 | Nikon Corporation | Camera system, interchangeable lens and method of manufacturing interchangeable lens |
| JP2014130248A (en) * | 2012-12-28 | 2014-07-10 | Canon Inc | Lens device and photographing apparatus including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2770071B2 (en) | 1998-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |