JPH0191271U - - Google Patents
Info
- Publication number
- JPH0191271U JPH0191271U JP18639887U JP18639887U JPH0191271U JP H0191271 U JPH0191271 U JP H0191271U JP 18639887 U JP18639887 U JP 18639887U JP 18639887 U JP18639887 U JP 18639887U JP H0191271 U JPH0191271 U JP H0191271U
- Authority
- JP
- Japan
- Prior art keywords
- light
- reflected light
- distance
- optical system
- intensity
- 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
Landscapes
- Optical Radar Systems And Details Thereof (AREA)
Description
第１図は強度変調方式の距離測定装置の原理と
従来例の問題点とを示すための構成図、第２図は
従来例の問題点を示すための光学系の配置構成図
、第３図は上記原理を説明するための波形図であ
る。第４図および第５図はこの考案の実施例を示
すもので、第４図は全体の斜視図、第５図は光学
系の構成を示す断面図である。第６図から第９図
は再帰性反射材の特性を示すもので、第６図は再
帰性反射材の傾き角に対する反射光強度を示すグ
ラフ、第７図は上記傾き角を説明する図、第８図
は反射光の角度に対する強度を示すグラフ、第９
図は反射光の角度を説明するための図である。
７……対象物、１１……再帰性反射材、２１…
…レーザ・ダイオード（ＬＤ）、２２……コリメ
ータ・レンズ、２４……受光レンズ、２５……フ
オト・ダイオード（ＰＤ）。
Fig. 1 is a block diagram showing the principle of an intensity modulation distance measuring device and the problems of the conventional example, Fig. 2 is a layout block diagram of the optical system to show the problems of the conventional example, and Fig. 3 is a waveform diagram for explaining the above principle. FIGS. 4 and 5 show an embodiment of this invention, with FIG. 4 being a perspective view of the entire system, and FIG. 5 being a sectional view showing the configuration of the optical system. 6 to 9 show the characteristics of the retroreflective material, FIG. 6 is a graph showing the reflected light intensity with respect to the inclination angle of the retroreflection material, and FIG. 7 is a diagram illustrating the above-mentioned inclination angle. Figure 8 is a graph showing the intensity of reflected light versus angle;
The figure is a diagram for explaining the angle of reflected light. 7...Object, 11...Retroreflective material, 21...
... Laser diode (LD), 22 ... Collimator lens, 24 ... Light receiving lens, 25 ... Photo diode (PD).
Claims (1)
し、対象物からの反射光を受光し、投射光と反射
光との位相差に基づいて対象物までの距離を測定
する装置において、 対象物上の投射光照射位置に再帰性反射材を取
付けるとともに、投射光の光学系と同軸上に反射
光の受光光学系を配置したことを特徴とする距離
測定装置。[Claims for Utility Model Registration] Intensity-modulated continuous wave laser light is projected onto an object, the reflected light from the object is received, and the distance to the object is determined based on the phase difference between the projected light and the reflected light. What is claimed is: 1. A distance measuring device for measuring distance, characterized in that a retroreflector is attached to a projection light irradiation position on an object, and a reflected light receiving optical system is arranged coaxially with the projection light optical system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18639887U JPH0191271U (en) | 1987-12-09 | 1987-12-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18639887U JPH0191271U (en) | 1987-12-09 | 1987-12-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0191271U true JPH0191271U (en) | 1989-06-15 |
Family
ID=31477626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18639887U Pending JPH0191271U (en) | 1987-12-09 | 1987-12-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0191271U (en) |
-
1987
- 1987-12-09 JP JP18639887U patent/JPH0191271U/ja active Pending
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