| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a laminated film for an optical part having a light transmitting layer good in optical characteristics and surface smoothness and improved in workability at the time of production of the optical part, a film wound body, the optical part and an optical disk. <P>SOLUTION: The laminated film for the optical part is constituted by laminating at least the light transmitting layer, the base material layer, which is laminated on the light transmitting layer and peeled and removed when used and of which the surface coming contact with the light transmitting layer has a surface smoothness of 20 nm or below, the pressure-sensitive layer laminated on the light transmitting layer on the side opposite to the surface on which the base material layer is laminated and the protective layer laminated on the pressure-sensitive layer and peeled and removed when used. The combined film thickness of the light transmitting layer and the pressure-sensitive adhesive layer is 30-300 μm and the film thickness precision of them is ±2.0 μm and the light transmissivity of them at a wavelength of 405 nm is 87% or above. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
