OPTICAL ELEMENT, INJECTION MOLDING METALLIC DIE AND OPTICAL APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an optical element, an injection molding metallic die and an optical apparatus by which misoperation can be prevented and exact positioning can be realized when the optical element is mounted and further deformation at the time of mold releasing can be suppressed when the optical element is processed. SOLUTION: In the optical element, a positioning convex part for regulating a position of the optical element in a longitudinal direction is provided at a predetermined position in a transverse direction outside an effective surface of the long-length optical element. Further the optical element has an inclined surface section which is perpendicular to the transverse direction of the optical element at the positioning convex part and at least one surface among two surfaces facing each other is inclined in a direction where release from the metallic die is easy when the optical element is molded and a flat surface section which adjoins the inclined surface section and two surfaces of which being perpendicular to the longitudinal direction of the optical element and facing each other are respectively in parallel to a direction where release from the metallic die is performed when the optical element is molded. COPYRIGHT: (C)2006,JPO&NCIPI