Image Pickup Lens Unit And Method For Manufacturing Image Pickup Lens Unit

A method for manufacturing an image pickup lens unit, comprising:

• a lens which includes a first optical surface and a second optical surface formed on the opposite side of the first optical surface;
• and a holder member integrally molded to hold the lens therein with the first and second optical surfaces being exposed,
• wherein a forming mold for molding the holder member includes a first mold and a second mold;
• wherein the lens includes an alignment portion provided outside of any one of the first and second optical surfaces and positions the lens with respect to the first or the second mold;
• wherein any one of the first and second molds has a positioning portion which faces the alignment portion and positions the lens;
• and
• wherein the method includes
• a process of inserting the lens in the first or second mold so that at least a part of the positioning portion is in contact with an inner surface of the alignment portion of the lens,
• a process of performing mold clamp in a state in which the lens is positioned with respect to the first or second mold,
• a process of flowing resin in a state in which the lens is kept inside of the first and the second molds to mold the holder member, and
• a process of relatively opening the first and the second molds and taking the image pickup lens unit out.