JPS6355481A - Device for generating line object rotary laser beam in plane position detecting device using laser - Google Patents
Device for generating line object rotary laser beam in plane position detecting device using laserInfo
- Publication number
- JPS6355481A JPS6355481A JP19909686A JP19909686A JPS6355481A JP S6355481 A JPS6355481 A JP S6355481A JP 19909686 A JP19909686 A JP 19909686A JP 19909686 A JP19909686 A JP 19909686A JP S6355481 A JPS6355481 A JP S6355481A
- Authority
- JP
- Japan
- Prior art keywords
- laser beam
- prism
- laser
- mirror
- motor
- 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.)
- Granted
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 2
- 240000004050 Pentaglottis sempervirens Species 0.000 description 1
- 235000004522 Pentaglottis sempervirens Nutrition 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Length Measuring Devices By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、三角測量の原理によって！！ｆ［地点の座標
を求めるに際し、レーザーを用いて平面位置を検出する
装置において線対象回転レーザー、光線を作る装置に関
する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is based on the principle of triangulation! ! f [Relates to a device that creates a line-symmetric rotating laser and a light beam in a device that uses a laser to detect a plane position when determining the coordinates of a point.
［従来の技術及びその問題点］
三角測量によって平面位置を求める従来の方法は、トラ
ンシットを用いて行うのが普通であり、トランシットに
よる場合は、トランシットを操作する測量±１名とポー
ルをもつ作業員の少なくとも２名の人員を必要とし、ま
た熟練を要すと共に作業時間もかかるものであった。[Prior art and its problems] The conventional method of determining a plane position by triangulation is usually carried out using a transit, and when using a transit, it requires ±1 surveyor to operate the transit and work with a pole. This method requires at least two people to work together, requires skill, and is time-consuming.
そこで本出願人はレーザーを用いて測ｍを行う方法につ
いて先に特許出願を行った（特願昭６０−２６７４８１
号）。この方法は三角測量の原理によって計測地点の座
標を求めるに際し、２箇所の基準点に線対象な２光線を
むらのない旋回速度で旋回照射するレーザー燈台を設け
、その対象軸を各々他方の基準点の方向に合せ、一方、
計測地点にはレーザー光を検知するセンサーおよび正確
な時開測定装置を設けて、レーザー燈台により照射され
る線対象な２光線を検知する時間間隙を計測しこれを演
算装置に入力して計測点とレーザー光線の線対象軸との
なす角度に変換し、その角度と予め計測されている基準
点の距離とから計測地点の座標を停出する方法であるが
、この方法において問題になるのは、レーザー燈台すな
わち線対象回転レーザー光線を作る装置を構成するプリ
ズムやミラー等の取付をきわめて高精度で行わねばなら
ない点である。Therefore, the present applicant previously filed a patent application for a method of measuring meters using a laser (Patent application No. 60-267481).
issue). In this method, when determining the coordinates of a measurement point using the principle of triangulation, a laser lighthouse is installed at two reference points that irradiates two line-symmetrical beams at an even rotational speed, and each axis of interest is set as the reference point of the other. Align with the direction of the point, while
A sensor that detects laser light and an accurate time measurement device are installed at the measurement point to measure the time gap between detecting two symmetrical beams emitted by the laser lighthouse, and input this to a calculation device to determine the measurement point. The method is to convert the coordinates of the measurement point into an angle between the symmetrical axis of the laser beam and the symmetrical axis of the laser beam, and then determine the coordinates of the measurement point from that angle and the distance of the reference point that has been measured in advance.The problem with this method is that The point is that the installation of the prisms, mirrors, etc. that make up the laser lighthouse, that is, the device that creates the line-symmetric rotating laser beam, must be done with extremely high precision.
本発明は、プリズムやミラーの中でレーザー光を２回反
射させる構成とすることによりプリズムやミラー等の取
付誤差を相殺し、きわめて高精度の線対象回転レーザー
光線を作ることができる装置を提供すべくなされたもの
である。The present invention provides a device that can create a line-symmetric rotating laser beam with extremely high precision by canceling installation errors of the prism or mirror by reflecting the laser beam twice in the prism or mirror. This is something that has been done as much as possible.
［問題点を解決するための手段］
第１図および第２図において、鉛直軸を回転軸としてむ
らのない回転速度で回転するモータ２により水平面上で
回転させられる回転台３の中心にペンタプリズム５を設
置し、レーザー発振器４をモータ２の回転軸２ａ上に設
ける。さらに回転台３上に、ペンタプリズム５の光軸方
向に複合プリズム６を設置し、複合プリズム６はビーム
スプリッタ−及び２個の直角反射面を持つものである。[Means for Solving the Problems] In FIGS. 1 and 2, a pentaprism is mounted at the center of a rotary table 3 that is rotated on a horizontal plane by a motor 2 that rotates at an even speed with a vertical axis as the rotation axis. 5 is installed, and a laser oscillator 4 is installed on the rotating shaft 2a of the motor 2. Furthermore, a compound prism 6 is installed on the rotary table 3 in the optical axis direction of the pentaprism 5, and the compound prism 6 has a beam splitter and two right-angled reflecting surfaces.
固定部に直角ミラー７を、ミラーの交差部「１をモータ
２の回転軸２ａと直角に、かつ交わるように設置する。A right-angle mirror 7 is installed on the fixed part so that the intersection part "1" of the mirror is perpendicular to and intersects with the rotation axis 2a of the motor 2.
［発明の作用］
第１図および第２図において、モータ２が回転すること
により回転台３が矢印で示す時計方向に回転し、それに
伴いペンタプリズム５及び複合プリズム６が所定の回転
速度でむらなく回転する。[Operation of the invention] In FIGS. 1 and 2, as the motor 2 rotates, the rotary table 3 rotates in the clockwise direction indicated by the arrow, and the pentaprism 5 and the compound prism 6 rotate unevenly at a predetermined rotational speed. It rotates without any problem.
レーザー発振器４からのレーザー光はペンタプリズム５
によって９０度曲げられる。ペンタプリズム５からのレ
ーザー光は複合プリズム６によって２分され、一方は線
対象レーザー光線の一方、すなわち反時計回りレーザー
光線ＣＣＷとして外側に出し、他方は高さを変えて回転
中心に戻す。回転中心に戻されたレーザー光は直角ミラ
ー７により線対象ビーム光線の他方、すなわち時計回り
のレーザー光線ＣＷとして反射される。これにより線対
象な回転レーザー光線を得ることができる。The laser beam from the laser oscillator 4 passes through the pentaprism 5
can be bent 90 degrees by The laser beam from the pentaprism 5 is divided into two by a compound prism 6, one of which is emitted to the outside as one of the line-symmetrical laser beams, that is, a counterclockwise laser beam CCW, and the other is returned to the center of rotation after changing its height. The laser beam returned to the center of rotation is reflected by the right-angle mirror 7 as the other line-symmetrical beam, that is, the clockwise laser beam CW. This makes it possible to obtain a line-symmetric rotating laser beam.
［発明の効果］
プリズム、ミラーでレーザー光を９０度、１８０度な曲
げているが、プリズム、ミラーの中で２回反射させてい
るので曲げ方向のプリズム、ミラー取付誤差を相殺して
入射角を９０度、１８０度にま曲げることができる。第
３図（ハ）にペンタプリズムにおいて取付誤差αを相殺
する態様を示す。また当然モータの軸振れも相殺するこ
とができる。[Effects of the invention] The laser beam is bent by 90 degrees and 180 degrees by the prism and mirror, but since it is reflected twice in the prism and mirror, the angle of incidence is adjusted by canceling out the prism and mirror mounting errors in the bending direction. Can be bent 90 degrees or 180 degrees. FIG. 3(c) shows a mode of canceling out the mounting error α in the pentaprism. Naturally, the shaft vibration of the motor can also be offset.
［実施例］ 以下、図面を参照して本発明の実施例につき説明する。[Example] Embodiments of the present invention will be described below with reference to the drawings.
側面視でほぼ口字状を呈する取付架台１を備えており、
該架台１の下方水平部１ａ上には鉛直軸を回転軸として
むらのない回転速度で回転するモータ２により回転され
る回転台３が設けられている。また架台１にはモータ２
の回転軸２ａ上にレーザー発振器４が取付けられている
。It is equipped with a mounting frame 1 that has an almost mouth-like shape when viewed from the side.
A rotary table 3 is provided on the lower horizontal portion 1a of the pedestal 1 and is rotated by a motor 2 that rotates at an even rotational speed about a vertical axis. Also, the mount 1 has a motor 2.
A laser oscillator 4 is mounted on the rotating shaft 2a.
回転台３上には回転台３の中心にペンタプリズム５が設
置されており、さらに回転台３上にはペンタプリズム５
の光軸方向に複合プリズム６が設置されている。また取
付架台１（固定部）の上方水平部１ｂには直角ミラー７
がミラーの交差部ｎをモータの回転軸（レーザー光軸）
２ａと直角にかつ交わるようにして取付けられている。A pentaprism 5 is installed on the rotary table 3 at the center of the rotary table 3, and a pentaprism 5 is installed on the rotary table 3.
A composite prism 6 is installed in the optical axis direction. In addition, a right-angle mirror 7 is mounted on the upper horizontal part 1b of the mounting frame 1 (fixed part).
The intersection point n of the mirror is the rotation axis of the motor (laser optical axis)
It is attached so as to be perpendicular to and intersect with 2a.
第３図ないし第５図にペンタプリズム５、複合プリズム
６、及び直角ミラー７を示す。ペンタプリズム５は第３
図（イ）、（ロ）に示すように２面のなす角が４５痕の
反射面りを持つものである。A pentaprism 5, a compound prism 6, and a right-angle mirror 7 are shown in FIGS. 3 to 5. Pentaprism 5 is the third
As shown in Figures (a) and (b), the angle formed by the two surfaces has 45 reflective surfaces.
複合プリズム６は第４図（イ）、）（ロ）に示すように
２面のなす角が９０度の反射面りを持ち、かつ１面がビ
ームスプリッタ−６ａとなっている。As shown in FIGS. 4(a) and 4(b), the composite prism 6 has two reflecting surfaces with an angle of 90 degrees, and one surface serves as a beam splitter 6a.
直角ミラー７は２面のなす角が９０邸の反則面りを持つ
。The right-angle mirror 7 has an angle of 90 angles between its two sides.
モータ２が回転することにより回転台３が矢印で示す時
計方向に回転し、それに伴いペンタプリズム５及び複合
プリズム６が所定の回転速痕でむらなく回転する。レー
ザー発振器４からのレーザー光はペンタプリズム５によ
って９０麿曲げられる。ペンタプリズム５からのレーザ
ー光は複合プリズム６によって２分され、一方は線対象
ビーム光線の一方、すなわち反時計回りレーザー光線Ｃ
ＣＷとして外側に出し、他方は高さを変えて回転中心に
戻す。回転中心に戻されたレーザー光は直角ミラー７に
にり線対象ビーム光線の他方、すなわち時計回りのレー
ザー光ｓｉｃｗとして反射される。これにより線対象な
回転レーザー光線を得ることができる。第２図において
ｍは線対象軸である。As the motor 2 rotates, the rotary table 3 rotates in the clockwise direction indicated by the arrow, and accordingly, the pentaprism 5 and the composite prism 6 rotate evenly at a predetermined rotation speed. The laser beam from the laser oscillator 4 is bent by 90 degrees by the pentaprism 5. The laser beam from the pentaprism 5 is split into two by a compound prism 6, one of which is one of the symmetrical beams, i.e. the counterclockwise laser beam C.
Take it outside as CW, and change the height of the other one and return it to the center of rotation. The laser beam returned to the center of rotation is reflected by the right-angle mirror 7 as the other side of the diagonal target beam, that is, the clockwise laser beam sicw. This makes it possible to obtain a line-symmetric rotating laser beam. In FIG. 2, m is the line symmetry axis.
第６図ないし第８図に直角ミラ一部での反射によるレー
ザー光の反転（線対象軸に対して）状況を示す。第６図
においてミラーに対しレーザー光は４５１ｍの入射角を
持つ。第７図においてレーザー光は光路平面Ａ、Ｂ、Ｃ
内を通る。Ａ／／Ｂ、Ａ十〇、Ｂ土Ｃである。Ｂ平面内
で線対象軸ｍに角度θを持って入射したレーザー光はＡ
平面内でｍに対して角度θを持つ。第８図においてミラ
ーを上部から見るとミラー光線ｎ上の点を反射点とした
ごと（レーザー光は線対象に反射される。FIGS. 6 to 8 show how the laser beam is reversed (with respect to the symmetrical axis) due to reflection on a part of the right-angled mirror. In FIG. 6, the laser beam has an incident angle of 451 m with respect to the mirror. In Figure 7, the laser beam is on optical path planes A, B, and C.
pass inside. A//B, A10, B Sat C. The laser beam incident on the line symmetry axis m at an angle θ in the B plane is A
It has an angle θ with respect to m in the plane. In FIG. 8, when the mirror is viewed from above, a point on the mirror beam n is taken as a reflection point (the laser beam is reflected line-symmetrically).
プリズム５．６、ミラー７でレーザー光は９０度、１８
０度に曲げているが、プリズム５．６、ミラー７の中で
２回反射されているので曲げ方向のプリズム、ミラー取
付誤差を相殺して入射角を９０度、１８０度に曲げるこ
とができる。第３図（ハ）はペンタプリズム５において
取付誤差αを相殺する態様を示す。また当然モータ２の
軸振れも相殺することができる。The laser beam is 90 degrees with prism 5.6 and mirror 7, 18
Although it is bent at 0 degrees, it is reflected twice in prism 5.6 and mirror 7, so the angle of incidence can be bent to 90 degrees and 180 degrees by canceling out the prism and mirror installation errors in the bending direction. . FIG. 3(C) shows a mode in which the installation error α is canceled out in the pentaprism 5. Naturally, the axial vibration of the motor 2 can also be offset.
図面は本発明の実施例を示し、第１図および第２図は線
対象回転レーザー光線を作る装置を示し、第１図は立面
図、第２図は平面図、第３図ないし第５図はペンタプリ
ズム、複合プリズム、直角ミラーを示し、第３図（イ）
はペンタプリズムの側面図、第３図（ロ）は正面図、第
３図（ハ）は取付誤差の相殺を示す側面図、第４図（イ
）は複合プリズムの側面図、第４図（ロ）は正面図、第
５図（イ）は直角ミラーの側面図、第５図（ロ）は正面
図、第６図ないし第８図は直角ミラ一部での反射による
レーザー光の反転を示し、第６図は側面図、第７図は鳥
観図、第８図は上面図である。
１・・・取付架台 ２・・・モータ ３・・・回転
台 ４・・・レーザー発振器 ５・・・ペンタプリズ
ム ６・・・複合プリズム７・・・直角ミラーThe drawings show an embodiment of the invention, and FIGS. 1 and 2 show an apparatus for producing a line-symmetric rotating laser beam, FIG. 1 being an elevational view, FIG. 2 being a plan view, and FIGS. 3 to 5. Figure 3 (a) shows a pentaprism, a compound prism, and a right-angle mirror.
is a side view of the pentaprism, FIG. 3(B) is a front view, FIG. 3(C) is a side view showing cancellation of installation errors, FIG. Figure 5 (b) is a front view, Figure 5 (a) is a side view of the right-angle mirror, Figure 5 (b) is a front view, and Figures 6 to 8 show the inversion of the laser beam due to reflection on a part of the right-angle mirror. 6 is a side view, FIG. 7 is a bird's-eye view, and FIG. 8 is a top view. 1...Mounting frame 2...Motor 3...Rotary table 4...Laser oscillator 5...Penta prism 6...Complex prism 7...Right angle mirror
Claims (1)
転させられる回転台の中心にペンタプリズムを設置し、
レーザー発振器をモータの回転軸上に設けて、該レーザ
ー発振器からのレーザー光をペンタプリズムによつて９
０度曲げ、回転台に、ペンタプリズムの光軸方向に複合
プリズムを設置し、該複合プリズムはビームスプリッタ
ー及び２個の直角反射面を持っており、ペンタプリズム
からのレーザー光を２分して一方は線対象レーザー光線
の一方として外側に出し、他方は高さを変えて回転中心
に戻し、固定部に直角ミラーを、ミラーの交差部をモー
タの回転軸と直角に、かつ交わるように設置し、複合プ
リズムで回転中心に戻されたレーザー光を線対象ビーム
光線の他方として反射させ、これにより線対象な回転レ
ーザー光線を得ることを特徴とするレーザーを用いた平
面位置検出装置において線対象回転レーザー光線を作る
装置。A pentaprism is installed at the center of a rotating table that is rotated on a flat surface by a motor that rotates at an even speed.
A laser oscillator is installed on the rotating shaft of the motor, and the laser beam from the laser oscillator is transmitted through a pentaprism.
A compound prism is placed in the direction of the optical axis of the pentaprism on a rotating table with a 0 degree bend, and the compound prism has a beam splitter and two right-angled reflective surfaces, which splits the laser beam from the pentaprism into two. One side is sent out as one of the line-symmetric laser beams, and the other is returned to the center of rotation by changing the height. A right-angle mirror is installed on the fixed part so that the intersection of the mirrors is perpendicular to and intersects with the rotation axis of the motor. In a planar position detection device using a laser, the laser beam returned to the rotation center by a compound prism is reflected as the other side of the line-symmetric rotating laser beam, thereby obtaining a line-symmetric rotating laser beam. equipment for making.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19909686A JPS6355481A (en) | 1986-08-27 | 1986-08-27 | Device for generating line object rotary laser beam in plane position detecting device using laser |
| US07/066,423 US4874238A (en) | 1986-08-27 | 1987-06-25 | Method and device for measurement with laser beam |
| GB8714988A GB2195852B (en) | 1986-08-27 | 1987-06-26 | Method and apparatus for obtaining surveying measurements using laser beam |
| DE8718134U DE8718134U1 (en) | 1986-08-27 | 1987-07-07 | Angle measuring device using a laser |
| DE19873722429 DE3722429A1 (en) | 1986-08-27 | 1987-07-07 | ANGLE MEASURING METHOD AND DEVICE USING A LASER |
| FR878709868A FR2603376B1 (en) | 1986-08-27 | 1987-07-10 | LASER BEAM MEASURING METHOD AND DEVICE, PARTICULARLY FOR DETERMINING THE COORDINATES OF A POINT |
| CH3301/87A CH676504A5 (en) | 1986-08-27 | 1987-08-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19909686A JPS6355481A (en) | 1986-08-27 | 1986-08-27 | Device for generating line object rotary laser beam in plane position detecting device using laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6355481A true JPS6355481A (en) | 1988-03-09 |
| JPH0476634B2 JPH0476634B2 (en) | 1992-12-04 |
Family
ID=16402052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19909686A Granted JPS6355481A (en) | 1986-08-27 | 1986-08-27 | Device for generating line object rotary laser beam in plane position detecting device using laser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6355481A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016522201A (en) * | 2013-05-23 | 2016-07-28 | シンジェンタ パーティシペーションズ アーゲー | Tank mix formulation |
-
1986
- 1986-08-27 JP JP19909686A patent/JPS6355481A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016522201A (en) * | 2013-05-23 | 2016-07-28 | シンジェンタ パーティシペーションズ アーゲー | Tank mix formulation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0476634B2 (en) | 1992-12-04 |
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