JPS6213050Y2

JPS6213050Y2 -

Info

Publication number: JPS6213050Y2
Application number: JP15734479U
Authority: JP
Priority date: 1979-11-13
Filing date: 1979-11-13
Publication date: 1987-04-04
Also published as: JPS5675714U

Description

【考案の詳細な説明】本考案は、顕微鏡の視野絞り操作機構の改良に
関するものである。[Detailed Description of the Invention] The present invention relates to an improvement of a field stop operation mechanism of a microscope.

顕微鏡の照明系の中には、第１図に示す如く、
ベース４内を通る光軸をミラー１により直角に屈
曲せしめてからコンデンサーに導き且つ該ミラー
１の前後に視野絞り２と窓レンズ部３とを配置す
ると共に該視野絞り２をベース４の中央部に配設
して成るものがある。このような照明系を有する
顕微鏡の場合、従来は第２図に示す如く、視野絞
り２の回し環５に操作環６を固着し、操作環６の
把手６ａをベース４の上部に露出せしめ、該把手
６ａを操作することにより視野絞り２の開閉を行
つていた。ところが、このような視野絞り操作機
構は、顕微鏡操作者から見た場合絞り操作位置が
奥の方（第１図右方）にあり而も該絞り操作位置
の手前側（第１図左方）に窓レンズ部３が存在す
ることになるので、絞り操作がやりずらいという
欠点があつた。又、操作環６の把手６ａとベース
４との間の間隙を塞ぐことが難しいため、照明系
に埃等が入り易いという欠点もあつた。 In the illumination system of a microscope, as shown in FIG.
In one microscope, the optical axis passing through the base 4 is bent at a right angle by a mirror 1 and then guided to a condenser, and a field stop 2 and a window lens section 3 are arranged in front of and behind the mirror 1, with the field stop 2 disposed in the center of the base 4. In the case of a microscope having such an illumination system, as shown in Fig. 2, a control ring 6 is fixed to a rotating ring 5 of the field stop 2, a handle 6a of the control ring 6 is exposed on the top of the base 4, and the field stop 2 is opened and closed by operating the handle 6a. However, such a field stop operation mechanism has the disadvantage that the stop operation position is located in the back (right side in Fig. 1) when viewed from the microscope operator, and the window lens section 3 is located in front of the stop operation position (left side in Fig. 1), making it difficult to operate the stop. In addition, it is difficult to close the gap between the handle 6a of the control ring 6 and the base 4, so that dust and the like easily get into the illumination system.

本考案は、上記欠点を除去した上、コンパクト
に構成しスペースをとらない顕微鏡の視野絞り操
作機構を提供せんとするものであるが、以下第３
図乃至第５図に示した一実施例に基づき上記従来
例と同一の部材には同一符号を付してこれを説明
すれば、５′は視野絞り２に回動可能に組み込ま
れ且つ一部に窓レンズ部３側を向く傘歯車５′ａ
が設けられた回し環、６′は窓レンズ部３の付近
に回動可能に配置され且つ一部にベース４の切欠
き穴４ａ（第５図参照）を貫通して傘歯車５′ａ
と噛合する傘歯車６′ａが設けられた操作環であ
る。 The present invention aims to eliminate the above-mentioned drawbacks and provide a field stop operation mechanism for a microscope that is compactly constructed and does not take up much space.
This will be explained based on the embodiment shown in FIGS. 5 to 5, with the same members as those in the conventional example described above being given the same reference numerals. Bevel gear 5'a facing the window lens part 3 side
The turning ring 6' is rotatably arranged near the window lens part 3, and partially passes through the notch hole 4a of the base 4 (see FIG. 5) to connect the bevel gear 5'a.
The operating ring is provided with a bevel gear 6'a that meshes with the operating ring.

本考案による視野絞り操作機構は上述の如く構
成されているから、操作環６′を回わしてやれ
ば、第４図に示す如く回し環５′が回動せしめら
れ、視野絞り２の開閉が行われるのは明らかであ
る。さて、本案視野絞り操作機構は、操作環６′
を窓レンズ部３の付近に配置しているので、絞り
操作が非常にやり易い。又、ベース４の切欠き穴
４ａ等も窓レンズ部３及び操作環６′で完全に被
われてしまうので、照明系への埃等の侵入はほと
んどない。 Since the field diaphragm operating mechanism according to the present invention is constructed as described above, when the operating ring 6' is rotated, the rotation ring 5' is rotated as shown in FIG. 4, and the field diaphragm 2 is opened and closed. It is clear that this will happen. Now, the field diaphragm operating mechanism of this invention is the operating ring 6'.
is located near the window lens section 3, making aperture operation very easy. Furthermore, since the notch hole 4a of the base 4 is completely covered by the window lens section 3 and the operating ring 6', there is little chance of dust or the like entering the illumination system.

以上のように、本案視野絞り操作機構は操作し
易く、而も照明系への埃等の侵入が殆んどなく、
その上コンパクトに構成し得たからスペースをと
らないという利点を有する。 As mentioned above, the field diaphragm operation mechanism of the present invention is easy to operate, and there is almost no intrusion of dust etc. into the illumination system.
Moreover, it has the advantage of being compact and does not take up much space.

[Brief explanation of the drawing]

第１図は顕微鏡の照明系の概略図、第２図は従
来の視野絞り操作機構の垂直断面図、第３図は本
考案による視野絞り操作機構の一実施例の垂直断
面図、第４図は上記実施例の要部斜視図、第５図
は顕微鏡のベースに設けた切欠き穴を示す平面図
である。１……ミラー、２……視野絞り、３……窓レン
ズ部、４……ベース、４ａ……切欠き穴、５′…
…回し環、５′ａ……傘歯車、６……操作環、
６′ａ……傘歯車。 Fig. 1 is a schematic diagram of the illumination system of the microscope, Fig. 2 is a vertical sectional view of a conventional field diaphragm operating mechanism, Fig. 3 is a vertical sectional view of an embodiment of the field diaphragm operating mechanism according to the present invention, and Fig. 4 5 is a perspective view of the main part of the above embodiment, and FIG. 5 is a plan view showing a notch hole provided in the base of the microscope. 1...Mirror, 2...Field diaphragm, 3...Window lens section, 4...Base, 4a...Notch hole, 5'...
...Rotating ring, 5'a...Bevel gear, 6...Operation ring,
6'a...Bevel gear.

Claims

[Scope of utility model registration request]

A field diaphragm operating mechanism for a microscope having an illumination system in which the optical axis is bent by a mirror and a field diaphragm and a window lens section are arranged in front and behind the mirror, which is rotatable around the optical axis of the window lens section. A bevel gear is disposed on an operating ring provided in the field stop, and a bevel gear meshing with the bevel gear of the operating ring is disposed on a rotation ring rotatable about the optical axis of the field stop. , microscope field diaphragm operation mechanism.