Patent ID: 6160947
Filing Date: 2000-12-12
Classification: G02B

Abstract:
A fixing-assembly for an optical transmission member having a core wire and an outer covering, comprising:a substrate having a receipt groove therein for receiving the core wire of the optical transmission member;a lid integrated with said substrate;a receipt space located between said substrate and said lid, for receiving at least the covering of the optical transmission member, wherein the width of said receipt space is greater than that of said receipt groove;a boundary space zone provided between said receipt space and said receipt groove; andan adhesive surrounding the optical transmission member within said receipt space for fixing the optical transmission member in said receipt space, said adhesive also surrounding the core wire inside the receipt groove to thereby fix the core wire within said receipt groove;wherein the perimeter of the adhesive filled around the optical transmission member inside said boundary space zone is continuously and linearly reduced in a direction towards an opening of said receipt groove at an end opposed to said receipt space andwherein a constant in the following formula representing a volume-reduced percentage of the thickness of the adhesive around the optical transmission member within said boundary space zone is not less than 1.2:volume-reduced percentage=(-log(a.times.b)).times.100/c, in which a is an elastic modulus, measured in kg/mm.sup.2, of said adhesive, b is a coefficient of thermal expansion of said adhesive, and c is the constant.