Patent ID: 8194183

Claim:
An imaging device, comprising: a housing section; an actuator; a base section mounted at a bottom of the housing section; an imaging element mounted on the base section; and an imaging lens system, including: a first lens which is arranged in the housing section, wherein the first lens integrally includes: a first lens section, and a first lens flange section including a contacting surface; a second lens which is movably arranged in the housing section, wherein the second lens integrally includes: a second lens section, and a second lens flange section including plural contacting surfaces; and a third lens which is arranged in the housing section, wherein the third lens integrally includes: a third lens section, a third lens flange section including a contacting surface, and a leg section which is arranged on the imaging element, wherein the first lens, the second lens and the third lens have a common optical axis, wherein the first lens and the third lens are positioned in the housing section to keep a predetermined distance between each other, wherein the second lens is moved by the actuator in an optical axial direction, wherein the third lens is mounted on the imaging element, and wherein when the contacting surface of the second lens comes into contact with the first lens flange section or the third lens flange section, a position of the second lens in the optical axial direction comprises a reference focal position.