JPH0514872B2 - - Google Patents
Info
- Publication number
- JPH0514872B2 JPH0514872B2 JP20040784A JP20040784A JPH0514872B2 JP H0514872 B2 JPH0514872 B2 JP H0514872B2 JP 20040784 A JP20040784 A JP 20040784A JP 20040784 A JP20040784 A JP 20040784A JP H0514872 B2 JPH0514872 B2 JP H0514872B2
- Authority
- JP
- Japan
- Prior art keywords
- laser beam
- optical system
- objective lens
- transmission optical
- laser
- 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 25
- 230000005540 biological transmission Effects 0.000 claims description 15
- 239000011521 glass Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000012790 confirmation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、レーザレーダ装置・レーザ照準装
置・レーザ通信装置等に好適なレーザビームの送
信光学系に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a laser beam transmission optical system suitable for laser radar devices, laser aiming devices, laser communication devices, etc.
レーザレーダ装置・レーザ照準装置・レーザ通
信装置等のレーザ適用装置におけるレーザビーム
の送信光学系として、従来からレーザビームのビ
ーム径変換・ビーム拡がり角制御機能を有する望
遠鏡形式のものが知られている。この望遠鏡形式
のレーザビームの送信光学系は、対物レンズと、
接眼レンズから構成されている。
As a laser beam transmission optical system for laser application devices such as laser radar equipment, laser aiming equipment, and laser communication equipment, telescope-type systems that have functions for laser beam diameter conversion and beam divergence angle control have been known. . This telescope-type laser beam transmission optical system includes an objective lens,
It consists of an eyepiece.
この様なレーザビームの送信光学系でレーザビ
ームを変換し、送信する際、必要とされるレーザ
ビームの射出方向・ビーム拡がり角などの確認
は、遠方でのビームパターンの視認や光強度分布
の測定など手間のかかる作業により成されてい
る。従つて、レーザレーダ装置等のレーザ応用装
置において、レーザビームの射出方向とそのビー
ム拡がり角の確認方法は従来からの課題となつて
いた。 When converting and transmitting a laser beam using such a laser beam transmission optical system, confirmation of the laser beam emission direction, beam divergence angle, etc., is necessary by visually checking the beam pattern from a distance and checking the light intensity distribution. This is accomplished through time-consuming work such as measurement. Therefore, in laser application devices such as laser radar devices, a method of confirming the emission direction of a laser beam and its beam divergence angle has been a problem for a long time.
本発明は上記した従来技術の問題点に鑑みなさ
れたもので、レーザレーダ装置等のレーザ応用装
置において、レーザビームの射出方向及びその拡
がり角の確認を容易に行なうことが可能なレーザ
ビームの送信光学系を提供することを目的として
いる。
The present invention has been made in view of the problems of the prior art described above, and is capable of transmitting a laser beam that allows easy confirmation of the emission direction and spread angle of the laser beam in a laser application device such as a laser radar device. The purpose is to provide optical systems.
本発明のレーザビームの送信光学系は、レーザ
ビームに対し望遠鏡形式の接眼レンズと対物レン
ズによつてビーム径変換、ビーム拡がり角制御が
行われるレーザビームの送信光学系であつて、対
物レンズから射出されるレーザビームの一部を射
出方向と逆方向に反射して複数個の逆反射ビーム
を形成する逆反射ビーム形成手段と、上記複数個
の反射ビームの光路を変化させるため、対物レン
ズと接眼レンズの間に設けられた光路変換手段
と、光路変換手段によつて光路を曲げられた複数
個の逆反射ビームの光軸上で、かつ対物レンズの
焦点面に設けられた目盛板と、この目盛板を視認
するための視認用拡大レンズとを備えていること
を特徴としている。
The laser beam transmission optical system of the present invention is a laser beam transmission optical system in which beam diameter conversion and beam divergence angle control are performed for the laser beam by a telescope-type eyepiece and an objective lens, and the laser beam is transmitted from the objective lens to the laser beam. a retroreflection beam forming means for reflecting a part of the emitted laser beam in a direction opposite to the emission direction to form a plurality of retroreflection beams; and an objective lens for changing the optical path of the plurality of reflection beams. an optical path changing means provided between the eyepieces; a scale plate provided on the optical axis of the plurality of retroreflected beams whose optical paths are bent by the optical path changing means and on the focal plane of the objective lens; The device is characterized by being equipped with a viewing magnifying lens for viewing the scale plate.
以下添付の図面に示す実施例により、更に詳細
に本発明について説明する。
The present invention will be described in more detail below with reference to embodiments shown in the accompanying drawings.
第１図は本発明の一実施例を示す図である。同
図において、レーザ発振器１１から出力されたレ
ーザビーム１２は、接眼レンズ１３と対物レンズ
１４から成るガリレオ式望遠鏡によつて、ビーム
径の拡大変換及び拡がり角の制御をうけて射出さ
れる。従来のレーザビームの送信光学系は、レー
ザ発振器１１と接眼レンズ１３と対物レンズ１４
の構成だけである。しかし、本実施例では、図示
する様に、対物レンズ１４のビーム射出側にはコ
ーナキユーブ反射器１６を備えた透明ガラス板１
５が設けられ、接眼レンズ１３と対物レンズ１４
の間にビームスプリツタ１７が設けられている。
そして、ビームスプリツタ１７の反射方向で、か
つ対物レンズ１４の焦点位置には、目盛板１８が
設けられ、その先には視認用拡大レンズ１９が設
けられている。無限遠の像を結像する対物レンズ
１４の焦点面には、結像寸法が読み取れる目盛板
１８が設けられているものであり、更に、その目
盛板１８上での目盛と、その目盛板１８を通過さ
れる逆反射レーザビームの位置を読み取るための
視認用拡大レンズ１９が設けられているものであ
る。 FIG. 1 is a diagram showing an embodiment of the present invention. In the figure, a laser beam 12 output from a laser oscillator 11 is emitted by a Galilean telescope consisting of an eyepiece lens 13 and an objective lens 14 after the beam diameter is enlarged and the divergence angle is controlled. A conventional laser beam transmission optical system includes a laser oscillator 11, an eyepiece lens 13, and an objective lens 14.
It is only the configuration of . However, in this embodiment, as shown in the figure, a transparent glass plate 1 is provided with a corner cube reflector 16 on the beam exit side of the objective lens 14.
5 is provided, an eyepiece lens 13 and an objective lens 14
A beam splitter 17 is provided between them.
A scale plate 18 is provided in the reflection direction of the beam splitter 17 and at the focal point of the objective lens 14, and a viewing magnifying lens 19 is provided beyond the scale plate 18. The focal plane of the objective lens 14 that forms an image at infinity is provided with a scale plate 18 from which the image formation dimensions can be read. A viewing magnifying lens 19 is provided for reading the position of the retroreflected laser beam that passes through.
第２図はまた、コーナキユーブ反射器１６の外
観を示したものである。図示のように、透明ガラ
ス板１５には、コーナキユーブ反射器１６が反射
面を対物レンズ１４に向けて貼付けられ、かつ第
３図に示す様にレーザビームの径方向に十字形に
等間隔で配置されている。従つて、対物レンズ１
４から射出されるレーザビームの一部が、コーナ
キユーブ反射器１６によつてレーザビームの射出
方向と逆方向に反射される。逆ビームは、対物レ
ンズ１４を通つた後、ビームスプリツタ１７で反
射し、対物レンズ１４の焦点面に置かれた目盛板
１８上に結像する。 FIG. 2 also shows the appearance of the corner cube reflector 16. As shown in the figure, corner cube reflectors 16 are attached to the transparent glass plate 15 with their reflective surfaces facing the objective lens 14, and are arranged at equal intervals in a cross shape in the radial direction of the laser beam as shown in FIG. has been done. Therefore, objective lens 1
A part of the laser beam emitted from the laser beam 4 is reflected by the corner cube reflector 16 in a direction opposite to the direction in which the laser beam is emitted. After passing through the objective lens 14, the reverse beam is reflected by a beam splitter 17 and is imaged onto a scale plate 18 placed in the focal plane of the objective lens 14.
対物レンズ１４から射出されるレーザビーム
が、平行光束となる様にガリレオ式望遠鏡でレー
ザビームの拡がり角制御がなされていれば、全て
のコーナキユーブ反射器１６からの逆反射ビーム
は目盛板１８の１点に集光・結像される。 If the divergence angle of the laser beam is controlled by the Galilean telescope so that the laser beam emitted from the objective lens 14 becomes a parallel beam, all the retroreflected beams from the corner cube reflectors 16 will be reflected from the scale plate 18. The light is focused and imaged on a point.
対物レンズ１４から射出されるレーザビームが
拡がり角θで射出される場合には、そのコーナキ
ユーブ反射器１６の逆反射ビームは、第４図に示
すように、ｆを対物レンズの焦点距離として、ビ
ームの中心（光軸）からｆ・θ／２離れた位置に
集光する。 When the laser beam emitted from the objective lens 14 is emitted at a divergence angle θ, the retroreflected beam of the corner cube reflector 16 is a beam with f being the focal length of the objective lens, as shown in FIG. The light is focused at a position f·θ/2 away from the center (optical axis).
従つて、視認用拡大レンズ１９を介して目盛板
１８上の結像位置を確認することにより、レーザ
ビームの射出方向と拡がり角を容易に知ることが
できる。 Therefore, by confirming the image formation position on the scale plate 18 through the viewing magnifying lens 19, the emission direction and spread angle of the laser beam can be easily determined.
本発明によれば、レーザビームの射出方向と拡
がり角を、遠方でのビームパターンの視認や光強
度分布の測定等の面倒な手段をとる必要なく、容
易に行なうことが可能になる。従つて、レーザレ
ーダ装置やレーザ照準装置やレーザ通信装置の送
信光学系等のレーザ応用装置に適用することによ
り、ポインテイング精度などの性能及び操作性な
どの機能の大幅な向上を図ることができる。
According to the present invention, it is possible to easily determine the emission direction and spread angle of a laser beam without having to take troublesome measures such as visually checking the beam pattern from a distance or measuring the light intensity distribution. Therefore, by applying it to laser application devices such as laser radar devices, laser aiming devices, and transmission optical systems of laser communication devices, it is possible to significantly improve performance such as pointing accuracy and functions such as operability. .
第１図は本発明の一実施例を示す図、第２図は
第１図に示すコーナキユーブ反射器の外観を示す
図、第３図は第１図に示すコーナキユーブ反射器
の透明ガラス板上の配置を示す図、第４図は第１
図に示す目盛板の視認の一例を示す図である。
１１……レーザ発振器、１２……レーザビー
ム、１３……接眼レンズ、１４……対物レンズ、
１５……透明ガラス板、１６……コーナキユーブ
反射器、１７……ビームスプリツタ、１８……目
盛板、１９……視認用拡大レンズ。
FIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is a diagram showing the appearance of the corner cube reflector shown in FIG. 1, and FIG. 3 is a diagram showing the appearance of the corner cube reflector shown in FIG. Diagram showing the arrangement, Figure 4 is the first
It is a figure which shows an example of visual recognition of the scale plate shown in a figure. 11... Laser oscillator, 12... Laser beam, 13... Eyepiece lens, 14... Objective lens,
15... Transparent glass plate, 16... Corner cube reflector, 17... Beam splitter, 18... Scale plate, 19... Magnifying lens for viewing.
Claims (1)
と対物レンズによつてビーム径変換、ビーム拡が
り角制御が行われるレーザビームの送信光学系に
おいて、対物レンズから射出されるレーザビーム
の一部をレーザビーム射出方向と逆方向に反射し
て複数個の逆反射ビームを形成する逆反射ビーム
形成手段と、上記複数個の逆反射ビームの光路を
変化させるため接眼レンズと対物レンズの間に設
けられた光路変換手段と、光路変換手段によつて
光路を曲げられた複数個の逆反射ビームの光軸上
で、かつ対物レンズの焦点面に設けられた目盛板
と、目盛板を視認するための視認用拡大レンズと
を備えていることを特徴とするレーザビームの送
信光学系。 ２ 前記逆反射ビーム形成手段は、対物レンズの
ビーム射出側に配置された透明ガラス板と、透明
ガラス板上に反射面を対物レンズの方向に向けて
貼り付けされた複数個の反射器とから構成されて
いることを特徴とする特許請求の範囲第１項記載
のレーザビームの送信光学系。 ３ 前記反射器はコーナキユーブ反射器であるこ
とを特徴とする特許請求の範囲第２項記載のレー
ザビームの送信光学系。 ４ 前記光路変換手段は、ビームスプリツタであ
ることを特徴とする特許請求の範囲第１項記載の
レーザビームの送信光学系。 ５ 前記反射器は一定間隔で十字形に透明ガラス
板上に配置されていることを特徴とする特許請求
の範囲第２項記載のレーザビームの送信光学系。[Claims] 1. In a laser beam transmission optical system in which beam diameter conversion and beam divergence angle control are performed for a laser beam by a telescope-type eyepiece and an objective lens, the laser beam emitted from the objective lens is A retroreflection beam forming means for forming a plurality of retroreflection beams by reflecting a portion of the laser beam in a direction opposite to the laser beam emission direction, and a space between the eyepiece and the objective lens for changing the optical path of the plurality of retroreflection beams. The optical path converting means provided in A laser beam transmission optical system characterized by comprising a viewing magnifying lens for viewing. 2. The retroreflection beam forming means includes a transparent glass plate disposed on the beam exit side of the objective lens, and a plurality of reflectors attached to the transparent glass plate with their reflective surfaces facing the direction of the objective lens. A laser beam transmission optical system according to claim 1, characterized in that the laser beam transmission optical system is constructed as follows. 3. The laser beam transmission optical system according to claim 2, wherein the reflector is a corner cube reflector. 4. The laser beam transmission optical system according to claim 1, wherein the optical path converting means is a beam splitter. 5. The laser beam transmission optical system according to claim 2, wherein the reflectors are arranged at regular intervals in the shape of a cross on a transparent glass plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20040784A JPS6179176A (en) | 1984-09-27 | 1984-09-27 | Optical transmission system of laser beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20040784A JPS6179176A (en) | 1984-09-27 | 1984-09-27 | Optical transmission system of laser beam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6179176A JPS6179176A (en) | 1986-04-22 |
| JPH0514872B2 true JPH0514872B2 (en) | 1993-02-26 |
Family
ID=16423802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20040784A Granted JPS6179176A (en) | 1984-09-27 | 1984-09-27 | Optical transmission system of laser beam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6179176A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220026546A1 (en) * | 2018-09-21 | 2022-01-27 | Honda Motor Co., Ltd. | Simulator device |
-
1984
- 1984-09-27 JP JP20040784A patent/JPS6179176A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6179176A (en) | 1986-04-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |