JPS603457U - Defect detection device - Google Patents

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａは、従来の欠点検出装置の構成図、第１図すは
、第１図ａのＡからみた光学繊維め光出射端面の説明端
面図、第１図Ｃは、第１図ａのＢからみた受光素子の受
光面の端面図、第２図ａは、本考案の一実施例の構成図
、第２図すは、第２図ａの受光素子により検知される光
量と時間のグラフである。 １・・・・・・走査光、２・・・・・・被検査材、３・
・・・・・光学繊維、４・・・・・・受光素子、７・・
・・・・光結合器。 第１図 第２図FIG. 1a is a block diagram of a conventional defect detection device, FIG. Figure 2a is an end view of the light-receiving surface of the light-receiving element as seen from B in Fig. It is a graph. 1... Scanning light, 2... Material to be inspected, 3.
...Optical fiber, 4... Light receiving element, 7...
...Optical coupler. Figure 1 Figure 2

Claims (1)

【実用新案登録請求の範囲】 走査光を被検査材に照射し、この被検査材からの透過光
あるいは反射光を、光学繊維の一端面で受光し、該光学
繊維の他端面から出射した光を受光器で受光する前記被
検査材の欠点検出装置において、 前記光学繊維の他端面と前記受光器の受光面との間に、
光結合器を備え、該光結合器は、前記光学繊維の他端面
からの光を拡散均一化して、前記受光器の受光面に導く
ようにしたことを特徴とする欠点検出装置。[Claims for Utility Model Registration] Scanning light is irradiated onto a material to be inspected, the transmitted light or reflected light from the material to be inspected is received by one end surface of an optical fiber, and the light is emitted from the other end surface of the optical fiber. In the defect detection device for the inspected material that receives light with a light receiver, between the other end surface of the optical fiber and the light receiving surface of the light receiver,
A defect detection device comprising an optical coupler, the optical coupler diffusing and homogenizing the light from the other end surface of the optical fiber and guiding it to the light receiving surface of the light receiver.