Manufacturing method of optical unit for endoscope, optical unit for endoscope, and endoscope

摘要

A manufacturing method of an optical unit for endoscope includes: a process of fabricating a plurality of element wafers each including an optical element having an optical path portion and a spacer portion; a first adhesion process of fabricating a laminated wafer by adhering the element wafers with a first adhesive portion composed of a solid first adhesive disposed in a gap between the spacer portions; a second adhesion process of fabricating a bonded wafer by injecting a liquid second adhesive in the gap between the spacer portions; a curing process of performing curing treatment on the second adhesive; and a process of cutting the bonded wafer.