| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve adhesiveness of a resin surface with a first layer and also to prevent or suppress a change of the surface shape and a white cloudiness inside the resin. <P>SOLUTION: An objective lens 37 is the optical element for an optical pickup device arranged in an optical path of luminous flux with the wavelength of 380 to 420 nm, and it includes a resin molding section 50 molding the resin and an anti-reflection film 60 formed on a surface of the resin molding section 50. The anti-reflection film 60 has a three-layered structure laminating a first layer 62, second layer 64 and third layer 66, and the first layer 62 coming into contact with the resin molding section 50 among these layers is a mixed layer in which a metal oxide material and a hindered amine based light stabilizer are contained. <P>COPYRIGHT: (C)2011,JPO&INPIT |
