Compound eye optical system, imaging apparatus, and compound eye optical system manufacturing method

摘要

Provided are a compound eye optical system that is lightweight, can be cost-reduced by simple molding, has a high image quality and is ultra-thin, and a method for manufacturing the same. When the resin injection portion 14 is a side gate disposed on the side of the lens array 10, the lens array 10 may slightly warp in the gate direction. Further, in the case of the compound eye optical system 100, approximately the same size. Since the lens arrays 10, 20, and 30 require the same performance, the molding conditions and the like are similar, and the direction and amount of warping are also similar in the plurality of lens arrays 10, 20, and 30. At that time, when the lens arrays 10, 20, and 30 are stacked with the gate GA, that is, the resin injection portions 14, 24, and 34 aligned in the same direction as described above, the warp of the lens arrays 10, 20, and 30 is aligned. Problems such as variations in the distance between the lens elements 10a, 20a, and 30a and occurrence of eccentricity due to differences in warpage between the 10, 20, and 30 hardly occur.