Patent ID: 11862661
Assignee: OLYMPUS CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A manufacturing method of an image pickup apparatus, the manufacturing method comprising:
fabricating a plurality of image pickup members each including a light-receiving surface on which a transparent plate is disposed, and a plurality of spacers each configured to adjust an optical path length;
measuring a thickness of each of the transparent plates and a thickness of each of the plurality of spacers;
classifying the plurality of image pickup members into a plurality of first groups depending on the thickness of each of the transparent plates;
classifying the plurality of spacers into a plurality of second groups depending on the thickness of each of the spacers;
selecting a combination of any one of the plurality of first groups and any one of the plurality of second groups such that a sum of the thickness of each of the transparent plates and the thickness of each of the spacers is within a predetermined range with a focusing length of optical members as a center, the optical members each comprising an incident surface, an emission surface opposed to the incident surface, and a plurality of stacked optical elements, the focusing length being a length from the emission surface to a focusing surface of each of the optical members;
fabricating stacked bodies, each of the stacked bodies being fabricated by stacking the image pickup member in the first group and the spacer in the second group in the selected combination; and
disposing the optical members respectively on the spacers in the stacked bodies.