JPS6246403U

JPS6246403U -

Info

Publication number: JPS6246403U
Application number: JP13859085U
Authority: JP
Priority date: 1985-09-10
Filing date: 1985-09-10
Publication date: 1987-03-20

Description

[Brief explanation of the drawing]

第１図は、本考案の実施例の断面図。第２図は
、従来例の断面図。第３図は、本考案にかかる光
学フイルタと円板の断面図である。１，８：光フアイバ、２，７：コリメータレン
ズ、３，４，５，６：透過型光学フイルタ、９，
１０：回転軸、１１，１２：円板、１３：筐体、
１４，１５：軸受、１６：切り欠き面、１７：貫
通穴。 FIG. 1 is a sectional view of an embodiment of the present invention. FIG. 2 is a sectional view of a conventional example. FIG. 3 is a sectional view of an optical filter and a disk according to the present invention. 1, 8: Optical fiber, 2, 7: Collimator lens, 3, 4, 5, 6: Transmissive optical filter, 9,
10: Rotating shaft, 11, 12: Disk, 13: Housing,
14, 15: Bearing, 16: Notch surface, 17: Through hole.

Claims

[Claims for Utility Model Registration] (1) A pair of collimators that convert the light emitted from an optical fiber into parallel light and converge the parallel light onto the end face of another optical fiber, and a plurality of transmission type collimators. In an optical filter device for an optical fiber transmission line, the optical filter device is constituted by a disk to which an optical filter is attached, and the optical filter inserted into the parallel optical path can be replaced by rotating the disk. a) the axis of rotation of the disk is substantially parallel to the parallel optical path; (b) a portion of the disk is cut out obliquely to its surface; and (c) the cutout surface An optical filter device characterized in that the optical filter is attached in close contact with the optical filter. (2) A utility model according to claim 1, characterized in that a hole passing through the disk is provided in the cutout surface of the disk, and an optical filter is attached to cover the through hole. Optical filter device.