| 摘要 |
PROBLEM TO BE SOLVED: To obtain a compound optical element suppressing eccentricity without impairing workability at the time of assembly. SOLUTION: The molding mold 15 arranges a molding material 25 between one optical surface 24a of a base material lens 24 and a molding surface 21a of an upper die facing the one optical surface 24a, and heats the base material lens 24 and the molding material 25 to a prescribed molding temperature, and presses both, thereby integrally joining the molding material 25 to the one optical surface 24a of the base material lens 24. The molding mold includes a sleeve mold 22 inserted with molds 20, 21 and a position regulating member 23 inserted into the sleeve mold 22, arranged between an inner peripheral surface of the sleeve mold 22 and an outer peripheral surface of the base material lens 24, and regulates the position of the base material lens 24. Also, the position regulating member 23 has a coefficient of linear expansion greater than the coefficient of linear expansion of the sleeve mold 22. COPYRIGHT: (C)2008,JPO&INPIT |
