JPS6079108U

JPS6079108U - speckle rangefinder

Info

Publication number: JPS6079108U
Application number: JP17324883U
Authority: JP
Inventors: 廣瀬　不二夫
Original assignee: オムロン株式会社
Priority date: 1983-11-08
Filing date: 1983-11-08
Publication date: 1985-06-01

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面はこの考案の実施例を示し、第１図はスペックル距
離計の概略構成図、第２図は粗面ステッカの拡大側面図
、第３図は撮像素子の受光位置を示す概略側面図、第４
図ａ、　ｂはそれぞれ第３図の撮像素子の位置に対応し
たスペックルパターンの正面図、第５図ａ、　ｂはそれ
ぞれ他のスペックルパターンで第３図の撮像素子の位置
に対応した正面図、第６図は撮像素子の出力信号を示す
波形図、第７図は距離測定動作を示すフロー図である。１・・・・・・スペックル距離計、２・・・・・・被測
定物体、３・・・・・・レーザ光源、４・・・・・・レ
ーザ光、５・・・・・・粗面ステッカ、５ｃ・・・・・
・粗面、６・・・・・・撮像素子、７・・・…スペック
ルパターン、８・・・・・・スペックル、９・・φ・・
・マイクロコンピュータ。 □Ｌ−一第６図The drawings show an embodiment of this invention, in which Fig. 1 is a schematic configuration diagram of a speckle rangefinder, Fig. 2 is an enlarged side view of a rough surface sticker, and Fig. 3 is a schematic side view showing the light receiving position of an image sensor. Fourth
Figures a and b are front views of speckle patterns corresponding to the position of the image sensor in Figure 3, respectively, and Figures a and b are front views of other speckle patterns corresponding to the position of the image sensor in Figure 3, respectively. 6 is a waveform diagram showing the output signal of the image sensor, and FIG. 7 is a flow chart showing the distance measurement operation. 1... Speckle distance meter, 2... Object to be measured, 3... Laser light source, 4... Laser light, 5... Rough surface sticker, 5c...
・Rough surface, 6...Image sensor, 7...Speckle pattern, 8...Speckle, 9...φ...
・Microcomputer. □L-1 Figure 6

Claims

[Scope of utility model registration request]

A laser light source that emits a laser beam with a nearly constant beam diameter onto an object to be measured, a rough surface sticker that is attached to the object to be measured and is irradiated with laser light, and speckles of the laser light that occur when the rough surface sticker is irradiated. A speckle distance characterized by comprising an image sensor that receives a pattern, and a calculation means that calculates the average size of speckles in the speckle pattern based on the output signal of the image sensor and converts it into a distance to a measured object. Total.