Capillary tube for holding an optical fiber
AssigneeNippon Electric Glass Co., Ltd.
InventorsSotohiro Nakajima, Hirokazu Takeuchi
Life of this patent
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Abstract
Provided is a capillary tube (1) for holding an optical fiber comprises: an insertion hole (2) for inserting and fixing the optical fiber (F) formed therein; a cylindrical surface (3) as an outer circumferential surface; and a groove (4) formed in the cylindrical surface (3) in an axial direction thereof, wherein regions from the cylindrical surface (3) to both inner side surfaces (5) of the groove (4) each have a projecting curved surface (6), and regions from both the inner side surfaces (5) of the groove (4) to a bottom of the groove (4) each have a recessed curved surface (7).
Claims9
A capillary tube for holding an optical fiber, comprising:
- an insertion hole for inserting and fixing the optical fiber formed therein;
- a cylindrical surface as an outer circumferential surface;
- and
- a groove formed in the cylindrical surface in an axial direction thereof, wherein
- regions from the cylindrical surface to both inner side surfaces of the groove each have a projecting curved surface, and regions from both the inner side surfaces of the groove to a bottom of the groove each have a recessed curved surface.
Dependencies are inferred from the claim text.