IMAGING LENS AND IMAGING DEVICE

摘要

Provided is an imaging lens such that the lens can be made thin without formability being affected and such that when assembled into an imaging deviceinterference with the surrounding components can be minimized. Also provided is an imaging device using the imaging lens. A part of the edge portion (KB1) of a first lens (L1) is extended in the optical axis direction toward a second lens (L2) to define an extended portion (EX1) so that the shape of the first lens (L1) on the object side can remain unchanged. Therefore, the object side panel (HD1) of a lens frame (HD) for holding the imaging lens does not need to be worked, and the length of the lens frame (HD) in the optical axis direction can be shortened. Further, forming a gate section (GT1) on the extended portion (EX1) of the first lens (L1) in a direction orthogonal to the optical axis increases the cross-sectional area of the gate section (GT1) and evens out the inflow of a resin material through a flow channel which includes the gate section (GT1) during molding, and thereby increases the formability. Further, the extended portion (EX1) is housed in the thin wall part (TH2) provided on the edge portion (KB2) of the second lens (L2) which is disposed so as to have the same optical axis as the first lens (L1), and thus the inter-axial distance between the first lens (L1) and the second lens (L2) does not need to be extended. Therefore, providing the extended portion (EX1) favorably increases degrees of freedom in the optical design for an imaging lens.