JPH089607Y2 - Simple automatic leveler - Google Patents
Simple automatic levelerInfo
- Publication number
- JPH089607Y2 JPH089607Y2 JP1989039032U JP3903289U JPH089607Y2 JP H089607 Y2 JPH089607 Y2 JP H089607Y2 JP 1989039032 U JP1989039032 U JP 1989039032U JP 3903289 U JP3903289 U JP 3903289U JP H089607 Y2 JPH089607 Y2 JP H089607Y2
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- compensation mechanism
- automatic compensation
- automatic
- center
- 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.)
- Expired - Fee Related
Links
- 230000003287 optical effect Effects 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 16
- 230000000694 effects Effects 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
Landscapes
- Telescopes (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は、固定焦点の望遠鏡を用いた簡易自動水準儀
に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a simple automatic leveler using a fixed focus telescope.
（従来の技術） 従来、自動水準儀は、対物レンズ、合焦レンズ、焦点
鏡及び接眼レンズで構成される望遠鏡に、対物レンズの
光学的中心を通る水平線上の物点を水準儀本体の傾きに
かかわらず、常に焦点鏡の十字線の中心に結像させる自
動補償機構を設け、該自動補償機構を吊線で懸吊し、対
物レンズの焦点距離の1/2の位置に配置して構成されて
いる。(Prior Art) Conventionally, an automatic leveler uses a telescope composed of an objective lens, a focusing lens, a focusing mirror, and an eyepiece lens, and an object point on a horizontal line passing through the optical center of the objective lens irrespective of the inclination of the leveling body. Instead, an automatic compensating mechanism that always forms an image at the center of the crosshair of the focusing mirror is provided, and the automatic compensating mechanism is suspended by a suspension line and is arranged at a position half the focal length of the objective lens. .
（考案が解決しようとする課題） しかし、従来の自動水準儀は、望遠鏡の全長が長く、
またプリズム等用いて光路をひきまわしたものは、コン
パクトに構成できるが、構造が複雑になってコスト高と
なるという課題があった。(Problems to be solved by the invention) However, in the conventional automatic leveler, the total length of the telescope is long,
In addition, although a structure in which the optical path is spread by using a prism or the like can be made compact, there is a problem that the structure becomes complicated and the cost becomes high.
また、従来の自動水準儀は標準偏差で0.5″〜２″程
度の高精度であり、使用状況によっては高精度のものを
必要としない顧客にも提供されていたので、不経済であ
るという課題があった。In addition, the conventional automatic leveling standard has a high standard deviation of about 0.5 ″ to 2 ″, and it is provided to customers who do not need high accuracy depending on the usage situation, which is uneconomical. there were.
本考案は、従来のこのような課題を解決すると共に自
動補償機構の構成を簡易化し標準偏差で20″程度の自動
水準儀を提供することをその目的とするものである。An object of the present invention is to solve such a conventional problem and to simplify the structure of the automatic compensation mechanism to provide an automatic leveling device having a standard deviation of about 20 ″.
（課題を解決するための手段） 本考案は、上記の目的を達成するために、対物レン
ズ、焦点鏡及び接眼レンズで構成される固定焦点を有す
る望遠鏡に、対物レンズの光学的中心を通る水平線上の
物点を水準儀本体の傾きにかかわらず常に焦点鏡の十字
線の中心に結像させる自動補償機構を設け、主面を光軸
に対して直角方向に向けた１本の薄帯状吊線の両端を自
動補償機構に固定し、薄帯状吊線の中央を支持して自動
補償機構を懸吊し、対物レンズの焦点距離の1/2の位置
に配置したことを特徴とする。(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a telescope having a fixed focus composed of an objective lens, a focusing mirror and an eyepiece, and a horizontal lens passing through the optical center of the objective lens. An automatic compensation mechanism that always focuses the object point on the line at the center of the crosshair of the focusing mirror regardless of the tilt of the leveler body is provided, and a thin ribbon-shaped suspension line whose main surface is oriented perpendicular to the optical axis is provided. It is characterized in that both ends are fixed to the automatic compensation mechanism, the center of the thin strip-shaped suspension line is supported, and the automatic compensation mechanism is suspended, and it is arranged at a position of 1/2 of the focal length of the objective lens.
（作用） 合焦レンズを省略し、焦点鏡を対物レンズの焦点距離
と近距離例えば1mの距離にある被測定物点の結像距離と
のほぼ中間に位置させることによって、被測定物点まで
の距離によって結像される焦点面の位置が多少ずれたと
しても、接眼レンズで被測定物を誤差を小さく視準する
ことができる。そして自動補償機構は主面を光軸に対し
て直角方向に向けた１本の薄帯状吊線で懸吊したので、
従来のもののように４本の吊線で懸吊しなくても自動補
償機構を安定に支持することができ、また、光軸に対し
て直角方向の力に自動補償機構は作用されず、そのため
その方向の制動機構を必要としない。(Function) By omitting the focusing lens and arranging the focusing mirror approximately halfway between the focal length of the objective lens and the imaging distance of the measured object point at a short distance of 1 m, for example, the measured object point is reached. Even if the position of the focal plane formed by the distance is slightly shifted, the object to be measured can be collimated with a small error by the eyepiece lens. And the automatic compensation mechanism was suspended by one thin strip-shaped suspension line whose main surface was oriented in the direction perpendicular to the optical axis.
Unlike the conventional one, the automatic compensation mechanism can be stably supported without being suspended by four suspension lines, and the force in the direction perpendicular to the optical axis does not act on the automatic compensation mechanism. No directional braking mechanism is required.
（実施例） 以下本考案の実施例を図面につき説明する。(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.
図面において、１は対物レンズ、２は該対物レンズ１
の光軸Ｌ上であってその焦点距離の1/2の位置に配置さ
れ、自動補償機構３と共に用いられる台形ミラー、４は
焦点鏡、５は接眼レンズである。In the drawings, 1 is an objective lens, 2 is the objective lens 1
Is a trapezoidal mirror, which is disposed on the optical axis L of the optical axis L at a position of 1/2 of its focal length and is used with the automatic compensation mechanism 3, 4 is a focusing mirror, and 5 is an eyepiece.
対物レンズ１は焦点距離が短く、倍率が約20倍以下と
し、光学系の収差について考慮するならば、プラスチッ
ク等の非球面レンズを使用することも可能である。自動
補償機構３は、下面に鏡６が取付けられた振子７の両端
に１本の薄帯状の吊線８の両端がそれぞれ固着され、該
吊線８の中央部が鏡筒９の上部に接着剤等によって固着
され、該振子７の上面には制動板10が一体に突設され、
該制動板10に対向して磁石11が設けられて構成されてお
り、前記台形ミラー２の前方反射面121で反射した光が
振子７の鏡６及び台形ミラー２の後方反射面122を介し
て焦点鏡４に至るようになっている。前記振子７は、主
面が光軸Ｌに対して直角方向に向けられた薄帯状吊線８
によって懸吊され、光軸Ｌ方向にスムーズに運動する
が、運搬時を除き光軸Ｌに対して直角方向の力には作用
されないようになっているので、振子７の運動を妨げな
いように制動板10は光軸Ｌに平行に向けられ、該制動板
10に対向して磁石11が第２図に示すように、一端が鏡筒
９に取付けた磁石取付け枠13に取付けられる。該薄帯状
吊線８の幅は振子７が該吊線の２つの支点を結ぶ線を中
心にして回転することがないように少くとも振子７の幅
の1/4〜1/3程度になっている。また、振子７は運搬時を
考えて運動の制限ストッパを上下、前後、左右に設けて
いる。すなわち、例えば第２図に示すようにねじ14を設
け、ねじ14と振子７で間隙を形成している。第２図では
水平方向のねじ14を示したが、上下、前後は省略した。The objective lens 1 has a short focal length and a magnification of about 20 times or less. If the aberration of the optical system is taken into consideration, an aspherical lens such as plastic can be used. In the automatic compensating mechanism 3, one end of a thin strip-shaped suspension wire 8 is fixed to both ends of a pendulum 7 having a mirror 6 attached to its lower surface, and the central portion of the suspension wire 8 is attached to the upper portion of a lens barrel 9 with an adhesive or the like. And the braking plate 10 is integrally projected on the upper surface of the pendulum 7,
A magnet 11 is provided so as to face the braking plate 10, and the light reflected by the front reflection surface 12 1 of the trapezoidal mirror 2 is reflected by the mirror 6 of the pendulum 7 and the rear reflection surface 12 2 of the trapezoidal mirror 2. It reaches the focusing mirror 4 via the. The pendulum 7 has a ribbon-shaped suspension line 8 whose main surface is oriented in a direction perpendicular to the optical axis L.
Although it is suspended by the pendulum 7 and smoothly moves in the direction of the optical axis L, the movement of the pendulum 7 is not disturbed because it is not affected by the force in the direction perpendicular to the optical axis L except during transportation. The braking plate 10 is oriented parallel to the optical axis L,
As shown in FIG. 2, a magnet 11 is attached to the magnet mounting frame 13 which is attached to the lens barrel 9 so as to oppose to the magnet 10. The width of the thin strip-shaped suspension wire 8 is at least about 1/4 to 1/3 of the width of the pendulum 7 so that the pendulum 7 does not rotate around the line connecting the two fulcrums of the suspension wire. . Further, the pendulum 7 is provided with motion restriction stoppers at the top, bottom, front and rear, and left and right in consideration of transportation. That is, for example, as shown in FIG. 2, a screw 14 is provided, and the screw 14 and the pendulum 7 form a gap. Although the horizontal screw 14 is shown in FIG. 2, the upper and lower parts and the front and rear parts are omitted.
（考案の効果） 本考案は、上記のように自動補償機構の吊線に１本の
薄帯状の吊線を用いているので、吊線の数が少くなるな
ど自動補償機構の構成が簡易化され、また合焦レンズが
なく固定焦点式としたので、誤差を小さくなされて小型
化することができる等の効果を有する。(Effect of the Invention) Since the present invention uses one thin strip-shaped suspension wire as the suspension wire of the automatic compensation mechanism as described above, the configuration of the automatic compensation mechanism is simplified such that the number of suspension wires is small, and Since there is no focusing lens and the fixed focus type is used, there is an effect that the error can be reduced and the size can be reduced.
第１図は本考案の一実施例の線図、第２図は光軸に対し
て直角方向から見たその要部の一部截除した側面図であ
る。 １……対物レンズ、３……自動補償機構、４……焦点鏡 ５……接眼レンズ、６……鏡、７……振子 ８……薄帯状吊線、10……制動板、11……磁石FIG. 1 is a diagram of an embodiment of the present invention, and FIG. 2 is a side view of a main part of the device as seen from a direction perpendicular to the optical axis. 1 ... Objective lens, 3 ... Automatic compensating mechanism, 4 ... Focus mirror 5 ... Eyepiece lens, 6 ... Mirror, 7 ... Pendulum 8 ... Strip-shaped suspension wire, 10 ... Brake plate, 11 ... Magnet
Claims (1)
される固定焦点を有する望遠鏡に、対物レンズの光学的
中心を通る水平線上の物点を水準儀本体の傾きにかかわ
らず常に焦点鏡の十字線の中心に結像させる自動補償機
構を設け、主面を光軸に対して直角方向に向けた１本の
薄帯状吊線の両端を自動補償機構に固定し、薄帯状吊線
の中央を支持して自動補償機構を懸吊し、対物レンズの
焦点距離の1/2の位置に配置したことを特徴とする簡易
自動水準儀。1. A telescope having a fixed focus composed of an objective lens, a focusing mirror and an eyepiece, and an object point on a horizontal line passing through the optical center of the objective lens is always a cross of the focusing mirror regardless of the inclination of the leveling body. An automatic compensation mechanism that forms an image at the center of the line is provided, and both ends of one thin strip-shaped suspension line whose main surface is oriented in the direction perpendicular to the optical axis are fixed to the automatic compensation mechanism to support the center of the thin strip-shaped suspension line. A simple automatic leveler with an automatic compensation mechanism suspended and placed at half the focal length of the objective lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989039032U JPH089607Y2 (en) | 1989-03-31 | 1989-03-31 | Simple automatic leveler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989039032U JPH089607Y2 (en) | 1989-03-31 | 1989-03-31 | Simple automatic leveler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02129811U JPH02129811U (en) | 1990-10-25 |
| JPH089607Y2 true JPH089607Y2 (en) | 1996-03-21 |
Family
ID=31547567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989039032U Expired - Fee Related JPH089607Y2 (en) | 1989-03-31 | 1989-03-31 | Simple automatic leveler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089607Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6027311U (en) * | 1983-07-30 | 1985-02-23 | 旭精密株式会社 | Warning device for automatic tilt error correction device of surveying equipment |
| JPH0810141B2 (en) * | 1987-03-31 | 1996-01-31 | 株式会社ソキア | Optical path automatic compensation mechanism for optical surveying equipment |
-
1989
- 1989-03-31 JP JP1989039032U patent/JPH089607Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02129811U (en) | 1990-10-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |