OPTICAL LENS, METHOD FOR PRODUCING SAME, LENS UNIT, IMAGE-CAPTURING MODULE, AND ELECTRONIC DEVICE

摘要

Provided is an optical lens that prevents the occurrence of stray light by suppressing the surface reflection of a light-shielding film, and that reliably eliminates unnecessary light. Also provided are: a method for producing said optical lens; a lens unit; an image-capturing module; and an electronic device. This optical lens comprises: a lens part (15a) that lets a light beam pass through; and a light-shielding part (15b) provided adjacent to the lens part (15a). The light-shielding part (15b) has a light-shielding film (17) formed on the surface of the base material of the lens. A roughening treatment is applied to: the surface layer of a section of the light-shielding film (17) including at least the inner edge on the lens part (15a) side; and the boundary section of the lens part (15a) with respect to the light-shielding film (17).