JPH02123310A - Auto focus mechanism of microscope - Google Patents
Auto focus mechanism of microscopeInfo
- Publication number
- JPH02123310A JPH02123310A JP63276607A JP27660788A JPH02123310A JP H02123310 A JPH02123310 A JP H02123310A JP 63276607 A JP63276607 A JP 63276607A JP 27660788 A JP27660788 A JP 27660788A JP H02123310 A JPH02123310 A JP H02123310A
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- image
- focus
- lens
- observation object
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 238000003384 imaging method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
Landscapes
- Microscoopes, Condenser (AREA)
- Lenses (AREA)
- Automatic Focus Adjustment (AREA)
- Lens Barrels (AREA)
Abstract
Description
【発明の詳細な説明】
[産業上の利用分野]
本発明は顕微鏡のピント合わせを自動的に行うオートフ
ォーカス機構に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an autofocus mechanism that automatically focuses a microscope.
[従来の技術]
従来の顕微鏡のオートフォーカス機構は、第2図に示す
ように鏡筒全体をピントの合う位置までモーターで移動
させるものであった。[Prior Art] The autofocus mechanism of a conventional microscope uses a motor to move the entire lens barrel to a focused position, as shown in FIG.
[発明が解決しようとする課題]
しかし従来の技術では可動部の重量が大きいために高速
・高精度のピント合わせが困難であったそこで本発明は
上記のような問題点をトイ決するためのもので、その目
的とするところは、高速・高精度なピント合わせが可能
な1顕微境のオートフォーカス機構を提供するところに
ある。[Problems to be Solved by the Invention] However, with the conventional technology, it was difficult to achieve high-speed and high-precision focusing due to the large weight of the movable parts.The present invention therefore aims to solve the above-mentioned problems. The purpose of this is to provide a single-microscope autofocus mechanism that is capable of high-speed, high-precision focusing.
[課題を解決するための手段コ
上記問題点を解決するために、本発明の顕微2シのオー
トフォーカス機構は、観察物の像を対物レンズで光軸に
平行な光線とした後に結像レンズで像を結ぶ無限遠補正
光学系を構成し、前記対物レンズのみをモーター駆動し
てピント合わせを自動的に行うことを特徴とする。[Means for Solving the Problems] In order to solve the above problems, the autofocus mechanism of the microscope 2 of the present invention converts the image of the observed object into a beam parallel to the optical axis using an objective lens, and then converts the image into a beam parallel to the optical axis using an imaging lens. The present invention is characterized in that an infinity correcting optical system is configured to form an image at a distance, and focusing is automatically performed by driving only the objective lens by a motor.
[作用コ
上記のように構成された光学系においては、対物レンズ
と結像レンズの距離が変化しても顕微鏡の総合倍率は変
化しないために、ピントを合わせるためには、前記対物
レンズのみをその前側焦点位置に観察物が位置するよう
に移動させればよい従ってピント合わせを自動的に行う
にはモーターで駆動する部分を小型・軽量とすることが
でき、高速・高精度なオートフォーカスが可能となる[
実施例]
第1図は本発明の実施例を示す概略図である。[Function] In the optical system configured as above, the total magnification of the microscope does not change even if the distance between the objective lens and the imaging lens changes, so in order to focus, only the objective lens must be used. All you have to do is move the object to be observed at the front focus position. Therefore, in order to automatically focus, the part driven by the motor can be made smaller and lighter, allowing for high-speed, high-precision autofocus. It becomes possible [
Embodiment] FIG. 1 is a schematic diagram showing an embodiment of the present invention.
観察物8の像が対物レンズ3によって光軸に平行な光線
となった後に結像レンズ2によって中間像を結び、接眼
レンズ1を通じて観察される。このように構成された光
学系において観察物8の高さに応じてピントを合わせる
ための条件は、対物レンズ3と観察物8の距離が対物レ
ンズ6の前側焦点距離に等しくするということのみであ
り、結像レンズ2と対物レンズ3との距離はピントや顕
微鏡の総合倍率に影響を与えない。したがって観察物8
にピントを合わせるためには、接眼レンズ1及び結像レ
ンズ2が組み込まれた鏡筒4は支柱5に固定されたまま
、スライダー7に組み込まれた対物レンズ5のみがモー
ター6で上下に駆動され、対物レンズ3の前側焦点位置
に観察物8が位置するように位置決めされる。After the image of the observation object 8 is converted into a beam of light parallel to the optical axis by the objective lens 3, an intermediate image is formed by the imaging lens 2 and observed through the eyepiece lens 1. In the optical system configured in this way, the only condition for adjusting the focus according to the height of the object 8 to be observed is that the distance between the objective lens 3 and the object 8 to be observed is equal to the front focal length of the objective lens 6. The distance between the imaging lens 2 and the objective lens 3 does not affect the focus or the overall magnification of the microscope. Therefore, observation object 8
In order to focus, the lens barrel 4 in which the eyepiece lens 1 and the imaging lens 2 are incorporated remains fixed to the support 5, and only the objective lens 5 incorporated in the slider 7 is driven up and down by the motor 6. , the observation object 8 is positioned at the front focal position of the objective lens 3.
第6図は本発明の他の実施例を示す概略図である。対物
レンズ3を上下駆動するアクチーエータ−9を鏡筒4に
組み込むことによって、駆動部をより小型・軽量化して
、応答性の高いオートフォーカスを実現しようとするも
のである。ここでアクチュエーター9は、その使用目的
によりボイスコイルモーター、超音波モーター、圧電セ
ラミック等の方式を選択することができる。FIG. 6 is a schematic diagram showing another embodiment of the present invention. By incorporating an actuator 9 that drives the objective lens 3 up and down into the lens barrel 4, the drive unit can be made smaller and lighter, thereby achieving highly responsive autofocus. Here, the actuator 9 can be selected from a voice coil motor, an ultrasonic motor, a piezoelectric ceramic, etc. depending on its intended use.
[発明の効果・コ
本発明は、観察物の像を対物レンズで光軸に平行な光線
とした後に結像レンズで像を結ぶ無限遠補正光学系の構
成とすることにより、ピントを合わせるための駆動部を
対物レンズのみと小型・軽量化することにより、高速・
高精度なオートフォーカスを実現できるという効果があ
る。[Effects of the Invention/K] The present invention uses an infinity correcting optical system to form an image of an object to be observed into a beam of light parallel to the optical axis using an objective lens, and then to form an image using an imaging lens. By making the drive unit smaller and lighter with only the objective lens, high speed and
This has the effect of realizing highly accurate autofocus.
第1図は本発明の実施例を示す概略図であり、第2図は
従来のオートフォーカス機構を示す概略図であり、第6
図は本発明の他の実施例を示す概略図である。
1・・・・・・・・・接眼レンズ
2・・・・・・・・・結像レンズ
5・・・・・・・・・対物レンズ
4・・・・・・・・・鏡 筒
5・・・・・・・・・支 柱
6・・・・・・・・・モーター
7゛°°°°°°゛°スライダー
8・・・・・・・・・観察物
9・・・・・・・・・アクチュエーター以上
出願人 セイコーエプソン株式会社
代理人 弁理士 鈴木喜三部(他1名)第3開FIG. 1 is a schematic diagram showing an embodiment of the present invention, FIG. 2 is a schematic diagram showing a conventional autofocus mechanism, and FIG.
The figure is a schematic diagram showing another embodiment of the invention. 1...Eyepiece 2...Imaging lens 5...Objective lens 4...Mirror tube 5・・・・・・・・・Support 6・・・・・・Motor 7゛°°°°°°゛°Slider 8・・・・・・Object to be observed 9・・・・...Applicant for actuators and above Seiko Epson Co., Ltd. Agent Patent attorney Kizobe Suzuki (and 1 other person) 3rd Division
Claims (1)
結像レンズで像を結ぶ無限遠補正光学系を構成し、前記
対物レンズのみをモーター駆動してピント合わせを自動
的に行うことを特徴とする顕微鏡のオートフォーカス機
構。An infinity correction optical system is constructed in which an object to be observed is converted into a beam of light parallel to the optical axis using an objective lens, and then the image is formed by an imaging lens, and only the objective lens is driven by a motor to automatically perform focusing. A microscope autofocus mechanism featuring:
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63276607A JPH02123310A (en) | 1988-11-01 | 1988-11-01 | Auto focus mechanism of microscope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63276607A JPH02123310A (en) | 1988-11-01 | 1988-11-01 | Auto focus mechanism of microscope |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02123310A true JPH02123310A (en) | 1990-05-10 |
Family
ID=17571800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63276607A Pending JPH02123310A (en) | 1988-11-01 | 1988-11-01 | Auto focus mechanism of microscope |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02123310A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04182615A (en) * | 1990-11-19 | 1992-06-30 | Nikon Corp | Optical image forming device |
JPH0575718U (en) * | 1992-03-24 | 1993-10-15 | 富士写真光機株式会社 | Zoom lens with close-up lens |
US5519531A (en) * | 1991-08-26 | 1996-05-21 | Nikon Corporation | Microscope |
US7362501B2 (en) * | 2004-11-15 | 2008-04-22 | Olympus Corporation | Microscope apparatus |
US20110007389A1 (en) * | 2009-07-08 | 2011-01-13 | Olympus Corporation | Observation optical system and microscope including the observation optical system |
JP2017194700A (en) * | 2000-05-03 | 2017-10-26 | ライカ バイオシステムズ イメージング インコーポレイテッド | Fully automatic rapid microscope slide scanner |
-
1988
- 1988-11-01 JP JP63276607A patent/JPH02123310A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04182615A (en) * | 1990-11-19 | 1992-06-30 | Nikon Corp | Optical image forming device |
US5519531A (en) * | 1991-08-26 | 1996-05-21 | Nikon Corporation | Microscope |
JPH0575718U (en) * | 1992-03-24 | 1993-10-15 | 富士写真光機株式会社 | Zoom lens with close-up lens |
JP2017194700A (en) * | 2000-05-03 | 2017-10-26 | ライカ バイオシステムズ イメージング インコーポレイテッド | Fully automatic rapid microscope slide scanner |
JP2017194699A (en) * | 2000-05-03 | 2017-10-26 | ライカ バイオシステムズ イメージング インコーポレイテッド | Fully automatic rapid microscope slide scanner |
JP2019049751A (en) * | 2000-05-03 | 2019-03-28 | ライカ バイオシステムズ イメージング インコーポレイテッドLeica Biosystems Imaging, Inc. | Fully automatic rapid microscope slide scanner |
JP2019056917A (en) * | 2000-05-03 | 2019-04-11 | ライカ バイオシステムズ イメージング インコーポレイテッドLeica Biosystems Imaging, Inc. | Fully automatic rapid microscope slide scanner |
US7362501B2 (en) * | 2004-11-15 | 2008-04-22 | Olympus Corporation | Microscope apparatus |
US20110007389A1 (en) * | 2009-07-08 | 2011-01-13 | Olympus Corporation | Observation optical system and microscope including the observation optical system |
US8369011B2 (en) * | 2009-07-08 | 2013-02-05 | Olympus Corporation | Observation optical system and microscope including the observation optical system |
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