JPH05127068A - Binocular stereoscopic microscope - Google Patents
Binocular stereoscopic microscopeInfo
- Publication number
- JPH05127068A JPH05127068A JP26183691A JP26183691A JPH05127068A JP H05127068 A JPH05127068 A JP H05127068A JP 26183691 A JP26183691 A JP 26183691A JP 26183691 A JP26183691 A JP 26183691A JP H05127068 A JPH05127068 A JP H05127068A
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- objective lens
- binocular
- focusing
- distance measuring
- 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- Withdrawn
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- Microscoopes, Condenser (AREA)
- Automatic Focus Adjustment (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】また、上記双眼実体顕微鏡には、被検体を
照明する落射照明手段を内蔵したものも知られている。
この落射照明手段は、光源からの照明光を前記対物レン
ズを通して被検体に照射するように構成されている。Further, the binocular stereomicroscope described above is also known in which incident light illuminating means for illuminating a subject is built in.
The epi-illumination means is configured to illuminate the subject with illumination light from a light source through the objective lens.
【０００４】[0004]
【発明が解決しようとする課題】しかして、上記のよう
な従来の双眼実体顕微鏡では、自動合焦機能は備えてお
らず、使用者が拡大像を見ながら合焦操作を行いピント
を合わせているものであって、使用中に顕微鏡を外して
目視状態での処置を行ってから再び顕微鏡を使用する時
などに、顕微鏡の移動に対応してピントがずれたのを修
正する作業が必要となり、また、被検部の観察位置を変
えた時にも合焦し直す作業が必要で、その合焦作業が煩
雑であるという問題を有している。However, the conventional binocular stereomicroscope as described above does not have an automatic focusing function, and the user performs a focusing operation while looking at a magnified image to focus. However, when you use the microscope again after removing it from the microscope during use and performing visual treatment, it is necessary to correct the focus shift in response to the movement of the microscope. Further, there is a problem that the work of refocusing is necessary even when the observation position of the inspected portion is changed, and the focusing work is complicated.
【０００５】特に、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。In particular, when an emergency such as bleeding occurs during an operation, it is necessary to remove the microscope from the subject's part and perform an emergency treatment, and refocusing is required when the work of the subject's part is performed again. In addition to the treatment for the affected area, it is necessary to move and focus the microscope, which may hinder a quick work.
【０００６】その対策として、特殊な架台を工夫し、顕
微鏡を観察位置から外した後、再び観察位置に対する同
一合焦位置に戻せるように復帰する記憶手段を備えた機
構を設置することが考えられるが、この機構を付設した
ものでは、重量の大きな双眼実体顕微鏡の全体を所定焦
点位置に対応して位置制御する機構が大型となり作動の
軽快さが欠けると共に、高価なものとなる。As a countermeasure, it is conceivable to devise a special pedestal and install a mechanism having a storage means for returning the microscope so that it can be returned to the same in-focus position with respect to the observation position after the microscope is removed from the observation position. However, in the case where this mechanism is additionally provided, the mechanism for controlling the position of the whole heavy binocular stereomicroscope in correspondence with the predetermined focus position becomes large, lacks the lightness of operation, and becomes expensive.
【０００７】そこで、本発明は上記双眼実体顕微鏡に自
動合焦機能を持たせるように構成するものであるが、こ
の自動合焦を行うための測距手段の配設を他の双眼拡大
光学系および落射照明手段に影響を与えることなくコン
パクトに設置することを目的とするものである。Therefore, in the present invention, the binocular stereomicroscope is configured to have an automatic focusing function. The distance measuring means for performing the automatic focusing is arranged in another binocular magnifying optical system. It is also intended to be installed compactly without affecting the epi-illumination means.
【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、口径の大きい対物レンズに
対する中央部の左右位置に、左右の接眼レンズに至る双
眼拡大光学系を配設し、光源からの照明光を前記対物レ
ンズを通して被検体に照射する照明光学系を対物レンズ
に対する前記双眼拡大光学系の前方または後方に配置
し、上記照明光学系と反対側に、被検体像の結像ずれ量
を２位置に再結像させた間隔から測定する位相差検出方
式の測距手段の測距光学系を配置し、上記測距手段の信
号に基づき合焦機構を駆動して合焦を行う自動合焦機能
を備えてなるものである。In order to achieve the above object, a binocular stereomicroscope of the present invention has a binocular magnifying optical system extending to the left and right eyepieces at the left and right positions in the center of an objective lens having a large aperture. An illumination optical system for irradiating the subject with illumination light from a light source is arranged in front of or behind the binocular magnifying optical system with respect to the objective lens, and a subject image is formed on the side opposite to the illumination optical system. Focusing is performed by arranging a distance measuring optical system of a distance measuring means of a phase difference detecting system for measuring the amount of image shift from the distance of re-imaging at two positions and driving a focusing mechanism based on the signal of the distance measuring means. It is equipped with an automatic focusing function.
【０００９】[0009]
【作用】上記のような双眼実体顕微鏡では、落射照明手
段によって被検体に対して照明光が投光され、観察用光
束が対物レンズから左右の双眼拡大光学系を経て接眼レ
ンズに至り拡大像が使用者に観察される。また、対物レ
ンズを経た測距用光束は位相差検出方式の測距光学系に
より２位置に再結像されその結像距離に応じた信号が測
距手段から出力され、この信号に基づき合焦機構を駆動
して自動合焦が行われる。In the binocular stereomicroscope as described above, the illumination light is projected onto the subject by the epi-illumination means, and the observation light beam passes from the objective lens through the left and right binocular magnifying optical systems to the eyepieces to form a magnified image. Observed by the user. Further, the light flux for distance measurement that has passed through the objective lens is re-imaged at two positions by the distance measurement optical system of the phase difference detection method, a signal corresponding to the image formation distance is output from the distance measurement means, and focusing is performed based on this signal. The mechanism is driven to perform automatic focusing.
【００１０】そして、上記測距手段は位相差検出方式で
あることから中心光束でなくても測距可能であり、この
測距用に使用する光束を観察用光束とは別途の領域のも
のとし、しかも測距用光学系を双眼拡大光学系および落
射照明系とは干渉しない不使用領域に設置したことで、
他の機能の光量を阻害することなく自動合焦機能をコン
パクトに付設している。この自動合焦機能によって手術
中などに顕微鏡を移動して物体距離が変動しても自動合
焦により合焦操作を不要とし、使用者は被検体への処置
に専念できるようにしている。Since the distance measuring means uses the phase difference detection method, it is possible to measure the distance even if it is not the central light beam, and the light beam used for this distance measurement is in a region separate from the observation light beam. Moreover, by installing the distance measurement optical system in an unused area that does not interfere with the binocular magnifying optical system and the epi-illumination system,
The automatic focusing function is attached compactly without disturbing the light amount of other functions. With this automatic focusing function, even if the microscope is moved during surgery or the like and the object distance changes, the focusing operation is unnecessary due to the automatic focusing, and the user can concentrate on the treatment of the subject.
【００１１】[0011]
【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。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.
【００１２】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11（ユニット）が配設されてい
る。The binocular stereomicroscope 10 is provided with a binocular magnifying optical system 20, an epi-illumination means 30, a distance measuring means 40, etc. in a sealed housing (not shown). A large objective lens 11 (unit) is arranged.
【００１３】上記対物レンズ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 とに
よって構成されている。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
に配設されている。As shown in FIG. 2, the objective lens 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. It has a movable objective lens 11b. The movable objective lens 11b
Is arranged so as to be movable in the optical axis direction by driving a focusing mechanism 50 described later.
【００１４】そして、上記対物レンズ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
11側から左右のズームレンズ第１群21、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。The back of the objective lens 11 (above)
A pair of left and right binocular magnifying optical systems 20 for obtaining a magnified image of the subject W are installed on both sides of the central portion in FIG. This binocular magnifying optical system 20, as shown in FIG.
A left and right zoom lens first group 21, a zoom lens second group 22, a relay lens group 23, a first prism portion 24, a second prism portion 25, and an eyepiece lens 26 (unit) are arranged in this order from the 11 side. Has been done.
【００１５】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11の可動対物レンズ11b 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。The binocular magnifying optical system 20 which is the basic configuration of the binocular stereomicroscope 10 is a finite optical system in which the objective lens 11 is arranged in front of the binocular telescopic optical system from the first zoom lens group 21 to the eyepiece lens 26. The focal point is configured to be focused on the distance (focusing distance L). Further, the focusing distance L is
The movable objective lens 11b of the objective lens 11 is moved in the optical axis direction to be changed so as to focus on the position of the subject W.
【００１６】上記対物レンズ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 arranged in front of the left and right binocular magnifying optical systems 20 with respect to the objective lens 11, and the epi-illumination means 30 serves as the optical axis of the objective lens 11 as shown in FIG. An illumination optical system 35 including a light source 31 (lamp), a condenser lens group 32, and two right-angle prisms 33 and 34 arranged substantially parallel to each other is provided, and the illumination light is passed through the objective lens 11 to the subject. Irradiate toward W.
【００１７】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
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 at the rear of the side opposite to the epi-illumination means 30. This distance measuring means 40, as shown in FIG.
Distance measuring objective lens 41 from the 11 side, two distance measuring prisms 42, 43
A field lens 44, a separator lens 45, and a distance measuring optical system 47 including 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.
【００１８】上記測距光学系47では、対物レンズ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 11 passes through the two prisms 42 and 43 by the distance measuring objective lens 41 and then forms an image near the field lens 44. The formed image passes through the field lens 44, is separated into two by the separator lens 45, and is re-imaged at two positions on the line sensor 46. The detection principle is that the distance between the two images re-imaged on the line sensor 46 corresponds to the image forming position deviation (deviation amount Δ) from the in-focus position of the image formed near the field lens 44. d (pitch) changes, and the amount of deviation Δ is calculated based on this distance d, and the focusing mechanism 50 is driven so that the amount of deviation Δ falls within a predetermined range for automatic focusing. is there.
【００１９】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.
【００２０】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11の可動対物レンズ11b 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に出力して被
検体Ｗに自動合焦させるものである。The focusing mechanism 50 is provided with a movable objective lens 11b of the objective lens 11 movably in the optical axis direction as the cam barrel 51 rotates as shown in FIG.
At 52, a known mechanism for rotating and driving the cam barrel 51 is provided, and a drive signal for changing the focus position based on a distance measurement signal obtained by arithmetically processing a signal from the line sensor 46 of the detection module 48 is provided. It is output to the motor 52 of the focusing mechanism 50 to automatically focus the subject W.
【００２１】図３には、前記対物レンズ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。FIG. 3 shows the planar arrangement of each optical system with respect to the objective lens 11. For the objective lens 11 having a large aperture, the aperture of the binocular magnifying optical system 20 is provided on the left and right sides of the center of the objective lens 11. Left and right zoom lens first group 21,21
Is disposed, the right-angle prism 34 of the illumination optical system 35 is disposed in the front center position, and the distance measurement objective lens 41 (the distance measurement prism 42 of the distance measurement optical system 47 is disposed in the rear center position on the opposite side. ) Is provided.
【００２２】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。In contrast 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.
【００２３】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 them is changed to 2 to 15 mm, the focusing distance L from the center of the fixed objective lens 11a to the subject W is changed 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.
【００２４】上記実施例によれば、対物レンズ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。According to the above embodiment, the space and the optical path which are not used in the binocular magnifying optical system 20 of the objective lens 11 are effectively utilized and the illumination optical system 35 of the epi-illumination means 30 and the distance measuring optics of the distance measuring means 40 are used. By disposing the system 47, the distance measuring means 40 of the phase difference detection method capable of performing distance measurement without relying on the central light flux is incorporated in a place not conventionally used, and further, a part of the objective lens 11 is moved. With the provision of the focusing mechanism 50, the binocular stereomicroscope 10 having an automatic focusing function for quick focusing operation can be compactly configured, and each optical system does not interfere with each other and does not disperse. Good observation, illumination, and distance measurement can be performed without loss of observation light and illumination light. Further, the automatic focusing function can be attached to the binocular stereomicroscope 10 having the conventional structure with a few structural changes.
【００２５】加えて、対物レンズ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, after the objective lens 11, the distance measuring optical system 47
By arranging the
Even if the total magnification of 10 is changed, the automatic focusing function can be obtained by connecting the focusing mechanism 50 without affecting the distance measuring function.
【００２６】なお、上記実施例においては、対物レンズ
11の一部を移動する合焦機構50を設け、測距手段40から
の出力信号に基づいてレンズ系の焦点距離を変更して合
焦させるようにしているが、この合焦機構としては顕微
鏡全体を光軸方向に移動する駆動方式に設け、その駆動
により対物レンズ11の焦点距離位置に被検体Ｗの位置を
合わせて自動合焦を行うように構成してもよい。また、
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, the objective lens
A focusing mechanism 50 for moving a part of the lens 11 is provided, and the focal length of the lens system is changed based on the output signal from the distance measuring means 40 for focusing. It is also possible to provide a drive system in which the whole is moved in the optical axis direction, and drive it to align the position of the subject W with the focal length position of the objective lens 11 for automatic focusing. Also,
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.
【００２７】[0027]
【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、対物レンズの中央左右両側に双眼拡大光学系を配
置し、その前方または後方に照明光学系を配設すると共
に、反対側に位相差検出方式の測距手段の測距光学系を
配置し、この測距手段の信号に基づき合焦機構を駆動す
るように設けたことにより、対物レンズの背部スペース
および光路を有効利用して双眼実体顕微鏡に動作特性の
よい自動合焦機能をコンパクトに設置することができ、
顕微鏡を観察位置に移動した際の合焦操作を不要とし、
使用者は常時鮮明な拡大像を観察して被検体への処置に
専念でき、手術用顕微鏡等として実用上優れた効果を有
している。According to the binocular stereomicroscope of the present invention as described above, the binocular magnifying optical system is arranged on the left and right sides of the center of the objective lens, and the illumination optical system is arranged in front of or behind the objective lens and on the opposite side. The distance measuring optical system of the phase difference detection type distance measuring means is arranged and the focusing mechanism is driven based on the signal of the distance measuring means, so that the back space of the objective lens and the optical path are effectively used. The binocular stereo microscope can be compactly equipped with an automatic focusing function with good operating characteristics.
No need for focusing operation when moving the microscope to the observation position,
The user can always observe a clear magnified image and devote himself to the treatment of the subject, and has a practically excellent effect as a surgical microscope or the like.
【図面の簡単な説明】[Brief description of drawings]
【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 the objective lens.
【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 20 双眼拡大光学系 26 接眼レンズ 30 照明手段 31 光源 35 照明光学系 40 測距手段 41 測距対物レンズ 44 フィールドレンズ 45 セパレータレンズ 46 ラインセンサ 47 測距光学系 50 合焦機構 52 モータ Ｗ 被検体 10 Binocular stereomicroscope 11 Objective lens 20 Binocular magnifying optical system 26 Eyepiece 30 Illumination means 31 Light source 35 Illumination optical system 40 Distance measuring means 41 Distance measuring objective lens 44 Field lens 45 Separator lens 46 Line sensor 47 Distance measuring optical system 50 Focusing Mechanism 52 Motor W Subject
Claims (1)
に、左右の接眼レンズに至る双眼拡大光学系が配設され
ると共に、光源からの照明光を前記対物レンズを通して
被検体に照射する照明光学系が配設された双眼実体顕微
鏡において、上記照明光学系を対物レンズに対し前記双
眼拡大光学系の前方または後方に配置する一方、上記照
明光学系と反対側に、被検体像の結像ずれ量を２位置に
再結像させた間隔から測定する位相差検出方式の測距手
段の測距光学系を配置し、上記測距手段の信号に基づき
合焦機構を駆動して合焦を行う自動合焦機能を備えたこ
とを特徴とする双眼実体顕微鏡。1. Illumination optics for irradiating a subject with illumination light from a light source, while binocular magnifying optical systems reaching left and right eyepieces are provided on both left and right sides of the center of an objective lens having a large aperture. In a binocular stereomicroscope in which a system is arranged, the illumination optical system is arranged in front of or behind the binocular magnifying optical system with respect to the objective lens, and on the side opposite to the illumination optical system, an image shift of the object image is formed. The distance measuring optical system of the distance measuring means of the phase difference detection system for measuring the amount from the re-imaged position at two positions is arranged, and the focusing mechanism is driven based on the signal of the distance measuring means to perform focusing. A binocular stereomicroscope with an automatic focusing function.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26183691A JPH05127068A (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 |
|---|---|---|---|
| JP26183691A JPH05127068A (en) | 1991-10-09 | 1991-10-09 | Binocular stereoscopic microscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05127068A true JPH05127068A (en) | 1993-05-25 |
Family
ID=17367420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26183691A Withdrawn JPH05127068A (en) | 1991-10-09 | 1991-10-09 | Binocular stereoscopic microscope |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05127068A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6546208B1 (en) | 1999-11-22 | 2003-04-08 | Sl3D, Inc. | Stereoscopic telescope with camera |
| JP2006343595A (en) * | 2005-06-09 | 2006-12-21 | Sumitomo Osaka Cement Co Ltd | Confocal inspection device |
| JP2011133438A (en) * | 2009-12-25 | 2011-07-07 | Sony Corp | Device, method and program for acquisition of thickness information, and microscope |
| WO2018100885A1 (en) * | 2016-12-01 | 2018-06-07 | ソニー株式会社 | Medical observation device and control method |
| CN116117873A (en) * | 2022-11-29 | 2023-05-16 | 湖州学院 | Industrial robot of binocular recognition visual system |
-
1991
- 1991-10-09 JP JP26183691A patent/JPH05127068A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6546208B1 (en) | 1999-11-22 | 2003-04-08 | Sl3D, Inc. | Stereoscopic telescope with camera |
| JP2006343595A (en) * | 2005-06-09 | 2006-12-21 | Sumitomo Osaka Cement Co Ltd | Confocal inspection device |
| JP2011133438A (en) * | 2009-12-25 | 2011-07-07 | Sony Corp | Device, method and program for acquisition of thickness information, and microscope |
| US9127931B2 (en) | 2009-12-25 | 2015-09-08 | Sony Corporation | Thickness-information acquisition apparatus, thickness-information acquisition method, thickness-information acquisition program and microscope |
| WO2018100885A1 (en) * | 2016-12-01 | 2018-06-07 | ソニー株式会社 | Medical observation device and control method |
| CN109804290A (en) * | 2016-12-01 | 2019-05-24 | 索尼公司 | Medical observation device and control method |
| JPWO2018100885A1 (en) * | 2016-12-01 | 2019-07-11 | ソニー株式会社 | Medical observation apparatus and control method |
| US10992852B2 (en) | 2016-12-01 | 2021-04-27 | Sony Corporation | Medical observation device and control method |
| CN116117873A (en) * | 2022-11-29 | 2023-05-16 | 湖州学院 | Industrial robot of binocular recognition visual system |
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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 |