JPS6289615U

JPS6289615U -

Info

Publication number: JPS6289615U
Application number: JP18185685U
Authority: JP
Priority date: 1985-11-26
Filing date: 1985-11-26
Publication date: 1987-06-08

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例を示した断面図、
第２図は、従来の光減衰器の構成図、第３図は、
凸レンズを使用した本考案の他の実施例を示す断
面図である。１，２……光フアイバー、３，４……球レンズ
、５……減衰板、１０……スリーブ、１１，１２
……フエルール、１３，１４……スペーサー。 FIG. 1 is a sectional view showing an embodiment of the present invention;
Figure 2 is a configuration diagram of a conventional optical attenuator, and Figure 3 is:
FIG. 3 is a sectional view showing another embodiment of the present invention using a convex lens. 1, 2... Optical fiber, 3, 4... Ball lens, 5... Attenuation plate, 10... Sleeve, 11, 12
...Ferrule, 13,14...Spacer.

Claims

[Claims for Utility Model Registration] (1) A sleeve that fits into a first ferrule and a second ferrule holding the optical fiber in a centered manner and holds the two ferrules; and a sleeve disposed within the sleeve. in a state where the lens is fitted into the sleeve and the first ferrule is fitted into the sleeve,
a first spacer located between the first ferrule and the lens and in contact with both;
An optical attenuator comprising: a second spacer that is located between and in contact with the second ferrule and the lens when the ferrule is fitted into the sleeve. (2) a convex lens in which the outer diameter of the lens is equal to the outer diameter of the first ferrule and the outer diameter of the second ferrule;
The optical attenuator according to claim 1, which is either a spherical lens or a cylindrical lens having a refractive index distribution in the radial direction.