The fairing component being used for pickup optical system from the fairing component null glass material which is produced by the formation device and

摘要

PROBLEM TO BE SOLVED: To provide a method for forming a square beam shaping element having highly accurate eccentricity precision with good mass-productivity and to provide the beam shaping element manufactured by the method.;SOLUTION: In the method for manufacturing the beam shaping element in which both surfaces are cylindrical surfaces or one surface is a cylindrical surface and the other surface is an anamorphic surface and an outer shape is square, a formed body in which a plurality of beam shaping elements are arranged by one forming by using one set metallic molds constituting each surface and the formed body is cut into each beam shaping element.;COPYRIGHT: (C)2007,JPO&INPIT