| 摘要 |
<p>[Problem] To provide a lens array and a method of manufacturing same with which it is possible to efficaciously alleviate the occurrence of weld, not only on lens faces, but also near a light path between two indentation parts for forming the light path which are located close to one another in the lens array main body. [Solution] A fourth face (4e) is made to be the face on the side of the gate (GT), and the location of the convergence of the molten resin material when forming the lens array main body (4) is thereby separated from the location of the formation of lens faces (11-13). Furthermore, by the three-dimensional shape of a third indentation part (38), the inflow of the molten resin material into a flow path corresponding to the interval between a first indentation part (18) and a second indentation part (19) from a side of a face (4f) which is in opposition to the fourth face (4e) is suppressed when forming the lens array main body (4).</p> |
