JPH05127070A - Binocular stereoscopic microscope - Google Patents
Binocular stereoscopic microscopeInfo
- Publication number
- JPH05127070A JPH05127070A JP26183891A JP26183891A JPH05127070A JP H05127070 A JPH05127070 A JP H05127070A JP 26183891 A JP26183891 A JP 26183891A JP 26183891 A JP26183891 A JP 26183891A JP H05127070 A JPH05127070 A JP H05127070A
- Authority
- JP
- Japan
- Prior art keywords
- focusing
- objective lens
- objective
- movable
- optical system
- 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.)
- Withdrawn
Links
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- Automatic Focus Adjustment (AREA)
- Lens Barrels (AREA)
- Microscoopes, Condenser (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、手術用顕微鏡などとし
て使用される双眼実体顕微鏡に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a binocular stereomicroscope used as a surgical microscope or the like.
【０００２】[0002]
【従来の技術】従来より、例えば手術などを行う場合
に、患部が微細なときには、この患部を双眼実体顕微鏡
によって拡大しつつ処置を施しているものであり、この
双眼実体顕微鏡としては対物レンズの後方に実質的に双
眼拡大鏡を構成する拡大光学系を配設してなり、その焦
点調整としては顕微鏡全体を支柱に構成されたラックア
ンドピニオンにより上下動または横動させる機構を設置
したものが実用化されている。2. Description of the Related Art Conventionally, for example, when performing an operation or the like, when the affected area is fine, the affected area is treated by enlarging the affected area with a binocular stereoscopic microscope. A magnifying optical system that substantially constitutes a binocular magnifying lens is arranged in the rear, and as its focus adjustment, one that installs a mechanism for vertically moving or laterally moving the entire microscope by a rack and pinion configured on a column It has been put to practical use.
【０００３】[0003]
【発明が解決しようとする課題】しかして、上記のよう
な顕微鏡全体を移動させて対物レンズの焦点距離位置に
被検体の位置を合せて合焦を行うものでは、質量の大き
なものを移動させ、移動後任意の場所で固定するために
かなり大掛かりな構造を必要とし、場合によっては特別
な位置固定用の部材または機構を必要としていた。However, in the case where the entire microscope is moved as described above and the position of the subject is adjusted to the focal length position of the objective lens to focus, the one having a large mass is moved. However, it requires a rather large-scale structure for fixing at any place after the movement, and in some cases requires a special position fixing member or mechanism.
【０００４】その結果、合焦を行うための機構を含めて
顕微鏡全体が大きく重くなり、合焦操作および顕微鏡の
移動における軽快な動作が阻害されると共に、高価なも
のとなる問題を有する。特に、手術用の顕微鏡では、例
えば、手術中に出血などの緊急な事態に陥ったときに
は、被検部から顕微鏡を外して緊急処置を施さなければ
ならず、再度被検部の作業を行う際に再合焦が必要とな
り、患部に対する処置に加えて顕微鏡の移動、合焦操作
が必要で、迅速な作業の妨げとなる恐れがある。As a result, the entire microscope including the mechanism for focusing becomes large and heavy, which hinders the focusing operation and the light movements of the movement of the microscope, and becomes expensive. In particular, in the case of a surgical microscope, for example, when an emergency such as bleeding occurs during surgery, it is necessary to remove the microscope from the examination area and perform an emergency procedure. In this case, refocusing is required, and in addition to the treatment for the affected area, movement of the microscope and focusing operation are necessary, which may hinder quick work.
【０００５】また、上記双眼実体顕微鏡の合焦を測距手
段の信号に応じて自動合焦が行えるように構成しようと
した場合においても、質量の大きな部分の移動で合焦さ
せるものでは合焦機構が大きく軽快で迅速かつ精度のよ
い動作が期待できない問題を有する。Further, even in the case where the focusing of the binocular stereomicroscope is intended to be performed automatically in accordance with the signal of the distance measuring means, focusing is performed by moving a portion having a large mass. There is a problem that the mechanism is large and light, and quick and accurate operation cannot be expected.
【０００６】一方、上記従来構造では合焦のために接眼
レンズも移動することから、合焦操作に応じて観察者の
目の位置も移動しなければ良好な観察が行えず、合焦操
作中に接眼レンズ部分が目に当ったりする不具合もあ
り、操作性、観察性の点で改善が要望されるものであ
る。On the other hand, in the above-mentioned conventional structure, since the eyepiece lens is also moved for focusing, good observation cannot be performed unless the position of the eyes of the observer is moved in response to the focusing operation. In addition, there is a problem that the eyepiece lens portion comes into contact with the eyes, and improvement is required in terms of operability and observability.
【０００７】そこで本発明は上記事情に鑑み、合焦を行
うための機構をコンパクトに形成するようにした双眼実
体顕微鏡を提供することを目的とするものである。In view of the above circumstances, an object of the present invention is to provide a binocular stereomicroscope in which a mechanism for focusing is compactly formed.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
本発明の双眼実体顕微鏡は、双眼拡大光学系の前に配設
する対物レンズユニットを、固定対物レンズと可動対物
レンズとの２群構成とし、可動対物レンズの移動により
合焦を行うように構成したものである。In order to achieve the above object, a binocular stereomicroscope of the present invention comprises an objective lens unit arranged in front of a binocular magnifying optical system, which is composed of a fixed objective lens and a movable objective lens. In addition, focusing is performed by moving the movable objective lens.
【０００９】[0009]
【作用】上記のような双眼実体顕微鏡では、対物レンズ
ユニットを固定対物レンズと可動対物レンズとの２群構
成とし、合焦操作に応じて可動対物レンズを移動させて
レンズ系の焦点距離を変更し、被検体に合焦させるよう
にしている。これにより、合焦操作に応じて移動する部
品の質量が小さくなり、小さな作動力で合焦操作が行
え、軽快で迅速かつ正確な合焦機能が得られる。さら
に、合焦操作に応じて接眼レンズが移動せず、観察者の
目の位置を変える必要がなく、良好な操作性、観察性が
得られる。また、移動機構をモータ等で自動化して双眼
実体顕微鏡に自動合焦機能を付加しようとした際にも、
迅速で精度のよい制御が可能となる。In the binocular stereoscopic microscope as described above, the objective lens unit is composed of two groups of a fixed objective lens and a movable objective lens, and the movable objective lens is moved according to the focusing operation to change the focal length of the lens system. However, the subject is focused. As a result, the mass of the component that moves according to the focusing operation is reduced, the focusing operation can be performed with a small actuation force, and a light, quick, and accurate focusing function can be obtained. Furthermore, the eyepiece lens does not move according to the focusing operation, and it is not necessary to change the position of the eyes of the observer, and good operability and observability can be obtained. Also, when trying to add an automatic focusing function to the binocular stereomicroscope by automating the moving mechanism with a motor etc.,
This enables quick and accurate control.
【００１０】[0010]
【実施例】以下、図面に沿って本発明の実施例を説明す
る。図１に一実施例の双眼実体顕微鏡の内部光学機構の
概略構成を示している。この実施例では、自動合焦機構
に構成した例である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a schematic configuration of an internal optical mechanism of a binocular stereomicroscope of one embodiment. In this embodiment, an automatic focusing mechanism is used.
【００１１】双眼実体顕微鏡10は、図示しない密閉ハウ
ジング内に双眼拡大光学系20、落射照明手段30、測距手
段40等が配設されているものであり、被検体Ｗに面して
口径の大きな対物レンズユニット11が配設されている。The binocular stereomicroscope 10 has a binocular magnifying optical system 20, an epi-illumination means 30, a distance measuring means 40, etc. arranged in a sealed housing (not shown). A large objective lens unit 11 is provided.
【００１２】上記対物レンズユニット11は、図２にも示
すように全体として負のレンズ系（凹レンズ）の特性を
有する固定対物レンズ11a と、その背部の全体として正
のレンズ系（凸レンズ）の特性を有する可動対物レンズ
11b との２群に構成されている。なお、上記可動対物レ
ンズ11b は後述の合焦機構50の駆動によって光軸方向に
移動可能に配設され、その移動により合焦を行う。As shown in FIG. 2, the objective lens unit 11 has a fixed objective lens 11a having a negative lens system (concave lens) as a whole and a positive lens system (convex lens) having a back as a whole. Objective lens having
It is composed of two groups, 11b and. The movable objective lens 11b is arranged so as to be movable in the optical axis direction by driving a focusing mechanism 50, which will be described later, and focusing is performed by the movement.
【００１３】そして、上記対物レンズユニット11の背部
（上方）における中央部の両側に、被検体Ｗの拡大像を
得るための左右１組の双眼拡大光学系20が設置されてい
る。この双眼拡大光学系20は、図２にも示すように、対
物レンズユニット11側から左右のズームレンズ第１群2
1、ズームレンズ第２群22、リレーレンズ群23、第１プ
リズム部24、第２プリズム部25、接眼レンズ26（ユニッ
ト）がそれぞれ順に配設されて構成されている。A pair of left and right binocular magnifying optical systems 20 for obtaining magnified images of the subject W are installed on both sides of the central portion of the back (upper) of the objective lens unit 11. As shown in FIG. 2, the binocular magnifying optical system 20 includes the first and second zoom lens groups 2 from the objective lens unit 11 side.
1, a zoom lens second group 22, a relay lens group 23, a first prism section 24, a second prism section 25, and an eyepiece lens 26 (unit) are arranged in that order.
【００１４】この双眼実体顕微鏡10の基本構成となる双
眼拡大光学系20は、左右ズームレンズ第１群21から接眼
レンズ26に至る双眼望遠光学系の前に対物レンズユニッ
ト11を配設して、有限距離（合焦距離Ｌ）に焦点が合わ
せられるように構成したものである。また、上記合焦距
離Ｌは、前記対物レンズユニット11の可動対物レンズ11
b を光軸方向に移動することで変更させて被検体Ｗの位
置に合焦させるものである。A binocular magnifying optical system 20 which is a basic configuration of the binocular stereomicroscope 10 has an objective lens unit 11 arranged in front of a binocular telescopic optical system from a first group 21 of left and right zoom lenses to an eyepiece 26. The focus is set to a finite distance (focusing distance L). The focusing distance L is determined by the movable objective lens 11 of the objective lens unit 11.
b is moved in the optical axis direction to be changed and focused on the position of the subject W.
【００１５】上記対物レンズユニット11に対する左右の
双眼拡大光学系20の前方には落射照明手段30が配設さ
れ、この落射照明手段30は、図４にも示すように、対物
レンズユニット11の光軸とほぼ平行に配設された光源31
（ランプ）とコンデンサレンズ群32と、２個の直角プリ
ズム33,34 とによって構成された照明光学系35を有し、
前記対物レンズユニット11を通して照明光を被検体Ｗに
向けて照射する。Epi-illumination means 30 is disposed in front of the left and right binocular magnifying optical systems 20 with respect to the objective lens unit 11, and the epi-illumination means 30 is arranged to emit light from the objective lens unit 11 as shown in FIG. Light source 31 arranged substantially parallel to the axis
(Lamp), a condenser lens group 32, and an illumination optical system 35 composed of two right-angle prisms 33 and 34,
Illumination light is directed toward the subject W through the objective lens unit 11.
【００１６】一方、上記落射照明手段30とは反対側の後
方には、位相差検出方式の測距手段40が配設されてい
る。この測距手段40は、図４に示すように、対物レンズ
ユニット11側から測距対物レンズ41、２個の測距プリズ
ム42,43 、フィールドレンズ44、セパレータレンズ45、
ラインセンサ46（検出素子）による測距光学系47を有し
ている。上記ラインセンサ46、セパレータレンズ45、フ
ィールドレンズ44、一方の測距プリズム43は図１のよう
にユニット化されて検出モジュール48に構成されてい
る。On the other hand, a distance measuring means 40 of a phase difference detecting system is arranged on the rear side opposite to the epi-illumination means 30. As shown in FIG. 4, the distance measuring means 40 includes a distance measuring objective lens 41, two distance measuring prisms 42 and 43, a field lens 44, a separator lens 45, from the objective lens unit 11 side.
It has a distance measuring optical system 47 by a line sensor 46 (detection element). The line sensor 46, the separator lens 45, the field lens 44, and the one distance measuring prism 43 are unitized as shown in FIG.
【００１７】上記測距光学系47では、対物レンズユニッ
ト11を経た被検体Ｗからの測距用光束が測距対物レンズ
41により２個のプリズム42,43 を通った後フィールドレ
ンズ44近くに結像され、この結像した像はフィールドレ
ンズ44を通りセパレータレンズ45により２つに分離され
てラインセンサ46上の２位置に再結像する。そして、そ
の検出原理は、フィールドレンズ44近くに結像した像の
合焦位置からの結像位置ずれ（ずれ量Δ）に対応して、
ラインセンサ46上に再結像した２つの像の間隔ｄ（ピッ
チ）が変化し、この間隔ｄをもとに上記ずれ量Δを算出
し、該ずれ量Δが所定範囲内となるように合焦機構50を
駆動して自動合焦を行うものである。In the distance measuring optical system 47, the distance measuring light beam from the subject W that has passed through the objective lens unit 11 is used for the distance measuring objective lens.
After passing through the two prisms 42 and 43 by 41, an image is formed in the vicinity of the field lens 44, and the formed image passes through the field lens 44 and is separated into two by the separator lens 45. Re-image. The detection principle corresponds to the image forming position deviation (deviation amount Δ) from the in-focus position of the image formed near the field lens 44,
The distance d (pitch) between the two images re-imaged on the line sensor 46 changes, the deviation amount Δ is calculated based on this distance d, and the deviation amount Δ is adjusted so as to be within a predetermined range. The focusing mechanism 50 is driven to perform automatic focusing.
【００１８】なお、上記測距光学系47において、測距プ
リズム42,43 は光学的には必須のものではなく、フィー
ルドレンズ44、セパレータレンズ45、ラインセンサ46の
設置位置が確保できる場合には不要である。In the distance measuring optical system 47, the distance measuring prisms 42 and 43 are not optically essential, and when the installation positions of the field lens 44, the separator lens 45 and the line sensor 46 can be secured. It is unnecessary.
【００１９】上記合焦機構50は、図２に簡略に例示する
ように、前記対物レンズユニット11の可動対物レンズ11
b をカム筒51の回転に伴って光軸方向に移動可能に設
け、モータ52で上記カム筒51を回転駆動するような公知
の機構に構成してなり、前記検出モジュール48のライン
センサ46からの信号を演算処理した測距信号に基づく合
焦位置を変更する駆動信号を、合焦機構50のモータ52に
出力してレンズ系の焦点距離を変更して被検体Ｗに自動
合焦させるものである。The focusing mechanism 50 has a movable objective lens 11 of the objective lens unit 11 as shown in FIG.
b is provided so as to be movable in the optical axis direction as the cam barrel 51 rotates, and is constituted by a known mechanism in which the cam barrel 51 is rotationally driven by the motor 52. A drive signal for changing the in-focus position based on a distance-measuring signal obtained by arithmetically processing the above signal is output to the motor 52 of the in-focus mechanism 50 to change the focal length of the lens system to automatically focus on the subject W. Is.
【００２０】図３には、前記対物レンズユニット11に対
する各光学系の平面的配置を示すものであり、この口径
の大きい対物レンズユニット11に対し、その中心部の左
右両側に双眼拡大光学系20の口径の小さい左右ズームレ
ンズ第１群21,21 が配設され、その前方の中央位置には
照明光学系35の直角プリズム34が配設され、反対側の後
方の中央位置には測距光学系47の測距対物レンズ41（測
距プリズム42）が配設されている。なお、上記と逆に双
眼拡大光学系20の前方に測距光学系47を後方に照明光学
系35を配設するようにしてもよい。FIG. 3 shows the planar arrangement of each optical system with respect to the objective lens unit 11, and the binocular magnifying optical system 20 is provided on the left and right sides of the center of the objective lens unit 11 having a large aperture. The first and second left and right zoom lens groups 21 and 21 each having a small diameter are disposed, the right-angle prism 34 of the illumination optical system 35 is disposed in the front center position thereof, and the distance measuring optics is disposed in the rear center position on the opposite side. A distance measuring objective lens 41 (distance measuring prism 42) of the system 47 is arranged. Note that, conversely to the above, the distance measuring optical system 47 may be provided in front of the binocular magnifying optical system 20 and the illumination optical system 35 may be provided behind.
【００２１】ここで、前記合焦機構50における可動対物
レンズ11b の移動量に対する合焦距離の変更例を示せ
ば、固定対物レンズ11a の焦点距離ｆ1 が−350mm 、可
動対物レンズ11b の焦点距離ｆ2 が 150mmとし、両者の
中心距離ｓ（図２参照）を２〜15mmまで変化させるもの
とすると、固定対物レンズ11a の中心から被検体Ｗまで
の合焦距離Ｌは 256〜220mm まで変化する。すなわち、
上記可動対物レンズ11bの移動量13mmに対する合焦ゾー
ンが36mmとなり、その間に置かれた被検体Ｗに対して可
動対物レンズ11b の駆動によって自動合焦を行うことが
できる。Here, to show an example of changing the focusing distance with respect to the moving amount of the movable objective lens 11b in the focusing mechanism 50, the fixed objective lens 11a has a focal length f 1 of −350 mm and the movable objective lens 11b has a focal length. Assuming that f 2 is 150 mm and the center distance s (see FIG. 2) between the two is changed to 2 to 15 mm, the focusing distance L from the center of the fixed objective lens 11a to the subject W changes to 256 to 220 mm. .. That is,
The focusing zone for the moving amount 13 mm of the movable objective lens 11b is 36 mm, and the subject W placed between them can be automatically focused by driving the movable objective lens 11b.
【００２２】上記実施例によれば、対物レンズユニット
11を２群構成とし、物体側を固定対物レンズ11a とし、
内部側の可動対物レンズ11bの移動によって合焦を行う
と共に、モータ52の駆動によって自動合焦が行えるよう
に構成したことで、合焦のために移動する部品の質量を
小さくして作動力を低減し、迅速で正確な自動合焦が行
える。さらに、合焦のために移動する可動対物レンズ11
b を内部側に配設したことで、シール構造の採用が容易
であり、外部に作動部分がないため、安定した品質が供
給でき、特に、水密構造に設けることで医療器機の場合
には消毒、洗浄が容易に行える利点を有している。According to the above embodiment, the objective lens unit
11 is a two-group configuration, the object side is a fixed objective lens 11a,
Focusing is performed by moving the movable objective lens 11b on the inner side, and automatic focusing is performed by driving the motor 52, so that the mass of the moving parts for focusing is reduced and the operating force is increased. Reduced and quick and accurate automatic focusing is possible. Furthermore, the movable objective lens 11 that moves for focusing is used.
By arranging b on the inner side, it is easy to adopt a seal structure, and since there is no working part on the outside, stable quality can be supplied, and especially when it is installed in a watertight structure, disinfection is performed in the case of medical equipment. It has the advantage that it can be easily washed.
【００２３】また、上記実施例では対物レンズユニット
11の双眼拡大光学系20に使用されていないスペースおよ
び光路を有効利用して落射照明手段30の照明光学系35お
よび測距手段40の測距光学系47を配設したことで、従来
使用されていない場所に中心光束によらなくても測距可
能な位相差検出方式の測距手段40を組み込み、さらに、
対物レンズユニット11の一部を移動する合焦機構50を設
けたことに伴って、合焦動作が迅速な自動合焦機能を有
する双眼実体顕微鏡10をコンパクトに構成できると共
に、各光学系が相互に干渉せずまた分光しないことから
拡大観察光の光量ロスおよび照明光の光量ロスもなく、
それぞれ良好な観察、照明および測距が行える。さら
に、従来構造の双眼実体顕微鏡10に対する自動合焦機能
の付設も、少ない構造変更によって行える。In the above embodiment, the objective lens unit
The binocular magnifying optical system 20 of 11 effectively utilizes the unused space and optical path to arrange the illumination optical system 35 of the epi-illumination means 30 and the distance measuring optical system 47 of the distance measuring means 40. The distance measuring means 40 of the phase difference detection method that can measure the distance without relying on the central light flux is incorporated in a place where the
With the provision of the focusing mechanism 50 that moves a part of the objective lens unit 11, the binocular stereomicroscope 10 having an automatic focusing function with quick focusing operation can be configured compactly and the optical systems can be mutually connected. Since it does not interfere with and does not disperse into the light, there is no loss in the amount of magnified observation light or illumination light.
Good observation, illumination and distance measurement can be performed respectively. Further, the automatic focusing function can be attached to the binocular stereomicroscope 10 having the conventional structure with a few structural changes.
【００２４】加えて、対物レンズユニット11の後に測距
光学系47を配設したことで、上記対物レンズユニット11
を交換して顕微鏡10の総合倍率を変化させても、測距機
能には影響なく合焦機構50を接続することで自動合焦機
能が得られる。In addition, since the distance measuring optical system 47 is provided after the objective lens unit 11, the objective lens unit 11 is
Even if the total magnification of the microscope 10 is changed by exchanging, the automatic focusing function can be obtained by connecting the focusing mechanism 50 without affecting the distance measuring function.
【００２５】なお、上記実施例においては、可動対物レ
ンズ11b の合焦移動をモータ52の駆動によって行う自動
合焦機構に構成した例について説明したが、上記可動対
物レンズ11b をマニュアル操作によって合焦移動させる
ように構成してもよい。また、合焦機構50としてもカム
機構の他に公知のレンズ移動機構が適宜採用可能であ
る。本発明は手術用顕微鏡に限られることなく、他の医
療用、実験用等の双眼実体顕微鏡に適用可能である。In the above embodiment, an example in which the movable objective lens 11b is focused by moving the motor 52 is described as an automatic focusing mechanism. However, the movable objective lens 11b is manually focused. It may be configured to move. Also, as the focusing mechanism 50, a known lens moving mechanism other than the cam mechanism can be appropriately adopted. The present invention is not limited to a surgical microscope, but can be applied to other binocular stereoscopic microscopes for medical use, experiments, and the like.
【００２６】[0026]
【発明の効果】上記のような本発明双眼実体顕微鏡によ
れば、対物レンズユニットを固定対物レンズと可動対物
レンズとの２群構成とし、合焦操作に応じて可動対物レ
ンズを移動させて合焦させるようにしたことにより、合
焦操作に応じて移動する質量を小さくして合焦操作のた
めの作動力を低減することで、軽快で迅速かつ正確な合
焦が行え、自動合焦機能の実現が可能であると共に、合
焦操作に応じて観察者の目の位置を変える必要がなく、
操作性、観察性を改善することができるものである。According to the binocular stereomicroscope of the present invention as described above, the objective lens unit is composed of two groups of the fixed objective lens and the movable objective lens, and the movable objective lens is moved according to the focusing operation. By focusing, the mass that moves in response to the focusing operation is reduced, and the operating force for the focusing operation is reduced, enabling light, quick and accurate focusing, and the automatic focusing function. And it is not necessary to change the position of the observer's eyes according to the focusing operation.
The operability and observability can be improved.
【図１】本発明の一実施例における双眼実体顕微鏡の内
部光学機構を示す概略構成図FIG. 1 is a schematic configuration diagram showing an internal optical mechanism of a binocular stereomicroscope according to an embodiment of the present invention.
【図２】双眼拡大光学系の構成図FIG. 2 is a block diagram of a binocular magnifying optical system.
【図３】対物レンズユニットに対する各光学系の配置図FIG. 3 is a layout diagram of each optical system with respect to an objective lens unit.
【図４】測距光学系および照明光学系の構成図FIG. 4 is a block diagram of a distance measuring optical system and an illumination optical system.
10 双眼実体顕微鏡 11 対物レンズユニット 11a 固定対物レンズ 11b 可動対物レンズ 20 双眼拡大光学系 26 接眼レンズ 40 測距手段 50 合焦機構 52 モータ Ｗ 被検体 10 Binocular stereomicroscope 11 Objective lens unit 11a Fixed objective lens 11b Movable objective lens 20 Binocular magnifying optical system 26 Eyepiece 40 Distance measuring means 50 Focusing mechanism 52 Motor W Subject
フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ０２Ｂ 21/22 7246−2Ｋ Continuation of the front page (51) Int.Cl. 5 Identification number Office reference number FI technical display location G02B 21/22 7246-2K
Claims (1)
トを配設してなる双眼実体顕微鏡において、上記対物レ
ンズユニットを固定対物レンズと可動対物レンズとの２
群構成とし、可動対物レンズの移動により合焦を行うこ
とを特徴とする双眼実体顕微鏡。1. In a binocular stereomicroscope in which an objective lens unit is arranged in front of a binocular magnifying optical system, the objective lens unit comprises a fixed objective lens and a movable objective lens.
A binocular stereomicroscope having a group configuration, in which focusing is performed by moving a movable objective lens.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26183891A JPH05127070A (en) | 1991-10-09 | 1991-10-09 | Binocular stereoscopic microscope |
| US08/147,164 US5434703A (en) | 1991-10-09 | 1993-11-02 | Binocular stereomicroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26183891A JPH05127070A (en) | 1991-10-09 | 1991-10-09 | Binocular stereoscopic microscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05127070A true JPH05127070A (en) | 1993-05-25 |
Family
ID=17367449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26183891A Withdrawn JPH05127070A (en) | 1991-10-09 | 1991-10-09 | Binocular stereoscopic microscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05127070A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09105866A (en) * | 1995-10-11 | 1997-04-22 | Olympus Optical Co Ltd | Stereoscopic microscope |
-
1991
- 1991-10-09 JP JP26183891A patent/JPH05127070A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09105866A (en) * | 1995-10-11 | 1997-04-22 | Olympus Optical Co Ltd | Stereoscopic microscope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990107 |