JPH0324605U

JPH0324605U -

Info

Publication number: JPH0324605U
Application number: JP8373089U
Authority: JP
Priority date: 1989-07-17
Filing date: 1989-07-17
Publication date: 1991-03-14

Description

[Brief explanation of drawings]

第１図は本考案の第１実施例にかかる光フアイ
バ用フエルールの断面図、第２図は従来例を示す
断面図、第３図は従来のフエルールをレンズ付ホ
ルダーに装着した例を示す断面図、第４図は第１
実施例のフエルールを光コネクタに装着した例を
示す一部破断断面図、第５図及び第６図は非球面
レンズの説明図、第７図は本考案の第２実施例の
構成を示す断面図である。１１…保持体、２２１，２２２…保持体を構成
する第１の保持部及び第２の保持部、１２，２２
，２２２ａ…貫通孔、１３，２３…光フアイバケ
ーブル、１３ａ，２３ａ…光フアイバ素線、１３
ｂ，２３ｂ…保護用被覆部材、１７，２７…非球
面レンズ。 Fig. 1 is a sectional view of a ferrule for optical fiber according to the first embodiment of the present invention, Fig. 2 is a sectional view of a conventional example, and Fig. 3 is a sectional view of an example of a conventional ferrule attached to a holder with a lens. Figure 4 is the first
A partially cutaway cross-sectional view showing an example in which the ferrule of the embodiment is attached to an optical connector, FIGS. 5 and 6 are explanatory diagrams of an aspherical lens, and FIG. 7 is a cross-sectional view showing the configuration of a second embodiment of the present invention. It is a diagram. 11...Holding body, 221, 222...First holding part and second holding part constituting the holding body, 12, 22
, 222a... Through hole, 13, 23... Optical fiber cable, 13a, 23a... Optical fiber wire, 13
b, 23b...protective coating member, 17, 27...aspherical lens.

Claims

[Claims for Utility Model Registration] A through hole is provided in the holder, and an end portion of an optical fiber cable formed by covering an optical fiber element with a protective coating member, the tip of the end portion. The protective covering member near the light input/output end face of the optical fiber strand is removed to expose the optical fiber strand, and the end including the exposed part of the optical fiber strand is inserted and fixed. In the optical fiber ferrule, the holder is provided with a cavity that communicates with the through hole of the holder, and the optical fiber cable is arranged such that the light input/output end surfaces of the optical fiber strands face in the direction of the cavity. The end portion of the optical fiber is inserted into the through-hole of the holder and fixed, and an aspherical surface is provided in the void portion to convert the light entering/outputting through the light input/output end face of the optical fiber into parallel light or focused light. An optical fiber ferrule characterized by being equipped with a lens.