JPS59158117U

JPS59158117U - optical fiber

Info

Publication number: JPS59158117U
Application number: JP5429283U
Authority: JP
Inventors: 吉田　富男; 小川　裕士; 山下　牧; 加藤　充孝
Original assignee: オムロン株式会社
Priority date: 1983-04-11
Filing date: 1983-04-11
Publication date: 1984-10-23

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 the drawing]

第１図は光ファイバの端部を示す一部断面側面図、第２
図は従来の光ファイバの端部を示す一部断面側面図、第
３図は従来の他の光ファイバの端部を示す一部断面側面
図、第４図はこの考案の一実施例を示す光ファイバの端
部の一部断面側面図である。１：光ファイバ、２：コア部、３：クラッド部、２ａ・
３ａ：端面、４：ジャケット部、５：光硬化性樹−脂；
５ａ：凸球面。Figure 1 is a partially sectional side view showing the end of the optical fiber;
The figure is a partially sectional side view showing the end of a conventional optical fiber, FIG. 3 is a partially sectional side view showing the end of another conventional optical fiber, and FIG. 4 is an embodiment of the invention. FIG. 2 is a partially cross-sectional side view of an end of an optical fiber. 1: Optical fiber, 2: Core part, 3: Clad part, 2a.
3a: end face, 4: jacket part, 5: photocurable resin;
5a: Convex spherical surface.

Claims

[Scope of utility model registration request]

(1) In an optical fiber in which a cladding part is coated on the outside of a core part and a jacket part is coated on the outside of the cladding part in this order, the end of the jacket part is removed, while the end faces of the core part and the cladding part are coated. It is formed flat, and a minute amount of molten photocurable resin is adhered to the end face in a hemispherical shape due to surface tension, and is hardened by light irradiation to form a convex spherical surface. optical fiber.

(2) The optical fiber according to claim 1, wherein the photocurable resin has the same refractive index as the core portion.