JPS59191682U

JPS59191682U - Reflective optical sensor head

Info

Publication number: JPS59191682U
Application number: JP8643683U
Authority: JP
Inventors: 勇堀部
Original assignee: 日本電気株式会社
Priority date: 1983-06-07
Filing date: 1983-06-07
Publication date: 1984-12-19

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]

第１図は従来の反射型光センサヘッドを用いた動作状況
図、第２図ａはペア型配列構造の光センサヘッド拡大図
、同図すは動作エリアを示す拡大図、第３図は本考案に
よる光センサヘッドを用いた動作状況図、第４図ａは本
考案による一実施例を示す拡大断面図、同図すは動作エ
リアを示す拡大図である。１・・・・・・投光素子、２・・・・・・集光レンズ、
３・・・・・・投光用オプティカルファイバ心線、４・
・・・・・被測定物体、５・・・・・・受光用オプティ
カルファイバ心線、６・・・・・・光電変換素子、７・
・・・・・ヘッド金具、８・・・・・・動作エリア、９
・・・・・・保護被覆、１０・・曲ロスエリア、１１・
・・・・・非動作エリア、１２・・・・・・受光用オプ
ティカルファイババンドル心線。Figure 1 is an operating situation diagram using a conventional reflective optical sensor head, Figure 2a is an enlarged view of the optical sensor head with a pair type arrangement structure, and Figure 3 is an enlarged view showing the operating area. FIG. 4A is an enlarged sectional view showing an embodiment of the invention, and FIG. 4A is an enlarged view showing the operating area. 1... Light projecting element, 2... Condensing lens,
3...Optical fiber core wire for light projection, 4.
...Measurement object, 5... Optical fiber core wire for light reception, 6... Photoelectric conversion element, 7.
...Head fitting, 8...Movement area, 9
......Protective coating, 10..Bending loss area, 11.
...Non-operating area, 12... Optical fiber bundle core wire for light reception.

Claims

[Scope of utility model registration request]

Two types of optical fibers, one for the light emitting side and one for the light receiving side, are installed as light guides in one sensor head fitting.
In the sensor head of a reflective optical sensor that receives and detects the reflection of light projected onto a stationary or moving object to be measured and guides it to the photoelectric conversion section, an optical fiber for light projection is attached to the central axis of the sensor head. A fiber core with a single core structure is provided, the outer periphery is used as an optical fiber for the light receiving side, and the bundle fiber core wires are arranged coaxially, and the tip of the optical fiber bundle core wire for the light receiving side is tapered into an inverted conical shape. A reflective optical sensor head with unique characteristics.