Patent ID: 7978418
Filing Date: 2011-07-12
Classification: G02B

Abstract:
1. An optical device comprising: a first capillary tube assembly including a first capillary tube into which an optical fiber is inserted and fixed, and a first retaining member for retaining the first capillary tube; a second capillary tube assembly including a second capillary tube into which an optical fiber is inserted and fixed, and a second retaining member for retaining the second capillary tube; and a lens assembly including: at least one of the first lens and the second lens is a spherical lens having a flat surface portion, the lens holder is adjacent to and fixed to the at least one of the first lens and the second lens such that a spherical surface portion of the at least one of the first lens and the second lens abuts an edge portion of one end side of the through hole of the lens holder, and the first retaining member of the first capillary tube assembly is fixed to one end surface of the accommodation member, and the second retaining member of the second capillary tube assembly is fixed to another end surface of the accommodation member.