IMAGING UNIT, MANUFACTURING METHOD THEREOF, AND LIQUID EJECTING APPARATUS

摘要

An imaging unit is provided with a cylindrical lens barrel, and an object-side lens which is disposed in the lens barrel and is fixed to the lens barrel using an adhesive. The lens barrel includes three abutting portions and three adhesive portions. The object-side lens abuts the three abutting portions in an optical axis direction of the object-side lens, and the adhesive portions are formed between an outer circumferential surface of the object-side lens and an inner circumferential surface of the lens barrel, and the adhesive is injected therein. The three adhesive portions are formed at an interval in a circumferential direction. The three adhesive portions and the three abutting portions do not overlap each other in plan view as seen from a vertical direction.

主权项

1. An imaging unit, comprising:
a cylindrical lens barrel; and an optical member which is disposed inside the lens barrel and is fixed to the lens barrel using an adhesive, wherein the lens barrel includes a plurality of abutting portions which are orthogonal to a center axis of the lens barrel, are formed at an interval in an inner surface direction, which is a direction along an inside surface of the lens barrel, and which the optical member abuts in an optical axis direction of the optical member, wherein a plurality of adhesive portions, into which the adhesive is injected, are provided between an outside surface of the optical member and an inside surface of the lens barrel facing the outside surface, wherein the plurality of adhesive portions are provided at an interval in the inside surface direction, and wherein the plurality of adhesive portions and the abutting portions are in a mutually non-overlapping dispositional relationship in plan view as seen from the optical axis direction.