Patent ID: 9551835
Date: 2017-01-24
CPC Classifications: G02B

Claim:
1. A GRIN lens array comprising: a plurality of GRIN lenses each of which has a first lens end face and a second lens end face opposed to the first lens end face; and a main body portion which holds the plurality of GRIN lenses in a state in which the first and second lens end faces of each of the GRIN lenses are arranged along a first direction, wherein the main body portion comprises: a holding portion having a first coupling face in which the first lens end faces of the GRIN lenses are arranged, and a second coupling face which is opposed to the first coupling face and in which the second lens end faces of the GRIN lenses are arranged, and an edge portion provided on a side face of the holding portion between the first and second coupling faces, the edge portion having a first reference face located on the side where the first lens end faces of the GRIN lenses are arranged, and a second reference face opposed to the first reference face and located on the side where the second lens end faces of the GRIN lenses are arranged, wherein a distance between the first and second coupling faces along the first direction is larger than a distance between the first and second reference faces along the first direction, wherein the holding portion further comprises a side face which connects the first coupling face and the second coupling face along the first direction, and wherein one or more indentations indented in a second direction intersecting with the first direction are formed in the side face.