PLASTIC OPTICAL ELEMENT, NEST STRUCTURE, DIE, OPTICAL SCAN APPARATUS AND IMAGE FORMATION APPARATUS

摘要

A plastic optical element is provided, which includes an optical element body having a transfer surface which includes at least one laser beam incident portion of a concave shape, and a support portion connected with the optical element body, in which the support portion is disposed in a direction of a tangent line at an end of the transfer surface, and the optical element body and a part of the support portion are molded in the same nest structure.