| 摘要 |
<p>A lens array and a method of manufacturing the lens array are provided in which occurrence of a weld can be effectively suppressed, not only on lens faces, but also near an optical path between two recessing sections that are positioned near each other and used for optical path formation in a lens array main body. As a result of a fourth surface 4e being a surface on a gate GT side, a merging position of a molten resin material during molding of a lens array main body 4 is placed away from formation positions of lens faces 11 to 13. Furthermore, as a result of the three dimensional shape of a third recessing section 38, during molding of the lens array main body 4, the flow of molten resin material from a surface 4f side that opposes the fourth surface 4e into a flow path corresponding with an area between a first recessing section 18 and a second recessing section 19 can be suppressed.</p> |
