Patent ID: 6122426
Filing Date: 2000-09-19
Classification: G02B

Abstract:
An optical cable having a plurality of optical fibers, said optical cable comprising:a central member;a plurality of chamber elements respectively having fiber containing cavities for containing said optical fibers, each said chamber element having such a characteristic that a flexural rigidity in a depth direction of the fiber containing cavity thereof is smaller than a flexural rigidity in a widthwise direction of said fiber containing cavity; andan S-Z stranded part in which said chamber elements containing said optical fibers are assembled around said central member in an S-Z strand,wherein, assuming, of distortion energy of said each chamber element in an S-Z reverse portion within said S-Z stranded part, the distortion energy yielded when a bottom face of said chamber element is in contact with said central member to be U.sub.1, and the distortion energy yielded when a side face of said each chamber element is in contact with said central member to be U.sub. 2, .DELTA.U=U.sub.1 -U.sub.2 .ltoreq.0.2(mJ/mm) is satisfied.