Patent ID: 8300328

Claim:
A lens unit composed of different materials comprising a base and a lens, a part of a camera module of a different material from the lens being used as the base, and the lens of optical resin being directly replicated on the base such that the lens is integrally formed on the base, wherein the base has a through-hole and the lens is formed in and around the through-hole, wherein the base has a surface whose flow resistance against flow of liquefied lens-forming material varies according to its position, wherein a flow resistance at a relatively-short distance position from a center of the lens is smaller than a flow resistance at a relatively-long distance position from the center of the lens, and wherein when the liquefied lens-forming material reaches a boundary between the relatively-short distance position and the relatively-long distance position, the liquefied lens-forming material is subject to increase in flow resistance as large as a difference between the flow resistance at the relatively-short distance position and the flow resistance at the relatively-long distance position against further progress of the liquefied lens-forming material towards the relatively long-distance position.