IMAGING LENS

摘要

The present invention addresses the problem of providing an imaging lens having a structure in which two lenses having different external shape types can be accurately positioned and secured. A second lens section (20) is positioned against a barrel (50) at a flange section (20b), and a first lens section (10) is positioned against the barrel (50) of a holder (40) at an optical ramp (inclined optical surface) (11e), which is a section surrounding an optical surface. Therefore, both the second lens section (20) and the first lens section (10) can be accurately positioned against the holder (40). In other words, the optical axis of the second lens section (20) can be readily aligned using the flange section (20b), and the optical axis of the first lens section (10) can be readily aligned using the optical ramp (inclined optical surface) (11e), which is the section surrounding the optical surface. Therefore, the two lens sections (10, 20) of different external shape types can be appropriately positioned and secured in a manner that matches each of the respective types, making it possible to provide an imaging lens (100) that is small and precise and can be manufactured with high productivity.