JPS62188165U

JPS62188165U -

Info

Publication number: JPS62188165U
Application number: JP7630486U
Authority: JP
Priority date: 1986-05-22
Filing date: 1986-05-22
Publication date: 1987-11-30

Description

[Brief explanation of the drawing]

第１図は本考案の反射型光センサヘツドの一実
施例を組込んだセンサ装置の斜視図、第２図は第
１図の要部拡大断面図、第３図Ａ〜Ｃは本考案要
部の他の例を示す部分斜視図、第４図は第１図実
施例及び第５図従来例による距離−受光量特性グ
ラフ、第５図は従来例の反射型センサヘツドを組
込んだセンサ装置の斜視図である。１１……投光用光フアイバ、１１Ａ……出射端
、１２……受光用光フアイバ、１２Ａ……入射端
、１３……治具、１４……被検出物体、１５……
光源、１６……受光素子、１８，１８′，１８″
，１８……ミキシング部材。 Fig. 1 is a perspective view of a sensor device incorporating an embodiment of the reflective optical sensor head of the present invention, Fig. 2 is an enlarged sectional view of the main part of Fig. 1, and Figs. 3 A to C are the main parts of the present invention. FIG. 4 is a distance-light reception characteristic graph according to the embodiment shown in FIG. 1 and the conventional example shown in FIG. 5. FIG. FIG. DESCRIPTION OF SYMBOLS 11... Optical fiber for light emission, 11A... Output end, 12... Optical fiber for light reception, 12A... Incident end, 13... Jig, 14... Object to be detected, 15...
Light source, 16... Light receiving element, 18, 18', 18''
, 18... Mixing member.

Claims

[Scope of Claim for Utility Model Registration] In a reflective optical sensor head consisting of a light emitting optical fiber and a light receiving optical fiber, the output end of the light emitting optical fiber and the input end of the light receiving optical fiber are provided together, and both ends thereof are provided. 1. A reflective optical sensor head, characterized in that a rear end of an optical mixing member is fixed in contact with the rear end of the optical sensor head. 2. A reflective optical sensor head according to claim 1, wherein the light mixing member is a light guiding member having a low refractive index layer formed around it. A reflective optical sensor head according to claim 1, characterized in that the optical mixing member is embedded in a metal tube. 2. The reflective optical sensor head according to claim 1, wherein the tip of the optical mixing member is cut diagonally to enable detection in the lateral direction by total reflection or reflection by a reflective layer.