摘要:
An optical fiber cable including a core including gathered optical fibers, an inner sheath that accommodates the core therein, a wire body embedded in the inner sheath, a pair of tension members embedded in the inner sheath with the core interposed therebetween, a reinforcing sheet that covers the inner sheath and the wire body, and an outer sheath that covers the reinforcing sheet, in which in the inner sheath, when a thickness of a radially inner portion from the wire body is t i , a thickness of a radially inner portion from the pair of tension members is T i , a thickness of a radially outer portion from the wire body is t o , and a thickness of a radially outer portion from the pair of tension members is T o , t i i and t o o are satisfied.
摘要:
Provide is an optical fiber ribbon whereby a tape forming member can be easily removed after single core separation. The present invention is provided with: a plurality of optical fiber cores (10a, 10b) arranged in parallel spaced from each other; and a tape forming member (20) having coating portions (21a, 21b) covering an outer circumference of the optical fiber cores (10a, 10b), and a coupling portion (22a), integrally formed with the coating portions (21a, 21b), intermittently coupling adjacent optical fiber cores (10a, 10b), wherein the coating portions (21a, 21b) have opening portions (31, 32) to expose parts of surfaces of the optical fiber cores (10a, 10b), and at least a part of the coating portions (21a, 21b) is continuous in a longitudinal direction of the optical fiber cores (10a, 10b).
摘要:
Provide is an optical fiber ribbon whereby a tape forming member can be easily removed after single core separation. The present invention is provided with: a plurality of optical fiber cores (10a, 10b) arranged in parallel spaced from each other; and a tape forming member (20) having coating portions (21a, 21b) covering an outer circumference of the optical fiber cores (10a, 10b), and a coupling portion (22a), integrally formed with the coating portions (21a, 21b), intermittently coupling adjacent optical fiber cores (10a, 10b), wherein the coating portions (21a, 21b) have opening portions (31, 32) to expose parts of surfaces of the optical fiber cores (10a, 10b), and at least a part of the coating portions (21a, 21b) is continuous in a longitudinal direction of the optical fiber cores (10a, 10b).
摘要:
Provided is an optical fiber ribbon capable of concurrently ensuring mid-span access performance and cable production performance. The optical fiber ribbon 1 includes three or more optical fibers 2 arranged in parallel and connecting portions 3 connecting the adjacent optical fibers 2, the connecting portions 3 being formed intermittently in each of a ribbon longitudinal direction X and a ribbon width direction Y. The optical fiber ribbon 1 including the connecting portions 3 having split strength which is set in the range from 1.50 gf to 21.0 gf, contributes to exhibiting both the mid-span access performance and the cable production performance.
摘要:
Disclosed is a method for manufacturing an intermittently connected optical fiber ribbon that includes a plurality of optical fibers arranged side by side, and connection parts arranged intermittently and each connecting two adjacent optical fibers. The method involves: a step of applying, between the optical fibers, a UV-curable resin including a siloxane structure in its molecule; a step of removing a portion of the UV-curable resin applied between the optical fibers; and a step of irradiating the UV-curable resin between the optical fibers with UV rays and forming the connection parts.
摘要:
The present invention provides an optical fiber unit including a plurality of optical fibers, and at least two binding materials that bind the plurality of optical fibers, the two binding materials are wound around the plurality of optical fibers in an SZ shape, and are adhered to each other at respective reversed portions to form an adhesive part, and the adhesive part includes a plurality of intersection points of center lines of the two binding materials.
摘要:
[Problem] To suppress connection parts of an intermittently connected optical fiber ribbon from being destroyed. [Solution] A method for manufacturing an optical fiber ribbon of this disclosure includes: colored layer forming to form a colored layer to each of a plurality of optical fibers; and ribbon forming to form an optical fiber ribbon by curing a connecting material applied to a surface of the colored layer of each of the optical fibers to form connection parts that connect adjacent ones of the optical fibers . The colored layer forming includes, applying a coloring agent to the optical fibers, and forming the colored layer by curing the coloring agent such that uncured resin remains on the surface. The ribbon forming includes, applying the connecting material to the surface of the colored layer on which the uncured resin remains, and curing the connecting material and the uncured resin on the surface of the colored layer.
摘要:
Disclosed is a method for manufacturing an optical fiber ribbon 1 in which adjacent optical fibers 3 are connected intermittently in a length direction. The method involves: feeding the optical fibers 3 along the length direction; and applying a resin 9 intermittently in the length direction by rotating, between adjacent ones of the optical fibers 3, a rotating member 220 having a recess 220A. The moving speed V2, in the length direction, of a peripheral edge part of the rotating member 220 at a position where the peripheral edge part of the rotating member blocks the resin 9 between the optical fibers 3 is slower than the feeding speed V1 of the optical fibers 3.